| 1574141 |
Pythium diseases |
Pythium spp. |
Fruit rot caused by Pythium sp.
|
| 5495342 |
Pythium diseases |
Pythium spp. |
Rubus strigosus plants and canes affected by Pythium species |
| 5495043 |
black stain root disease |
Ophiostoma wageneri |
resinosis on the lower stem of an infected tree |
| 5495160 |
Pythium diseases |
Pythium spp. |
Calla lily plants for tuber production, Zantedeschia aethiopica; plant yellowing due to infection by Pythium species |
| 5495161 |
Pythium diseases |
Pythium spp. |
Calla lily plants for tuber production, Zantedeschia aethiopica; plant yellowing and death due to infection by Pythium species |
| 5495162 |
Pythium diseases |
Pythium spp. |
Calla lily plants for tuber production, Zantedeschia aethiopica; plant yellowing and death due to infection by Pythium species |
| 5495165 |
Pythium diseases |
Pythium spp. |
Calla lily plants for tuber production, Zantedeschia aethiopica; plant yellowing due to infection by Pythium species |
| 5495167 |
Pythium diseases |
Pythium spp. |
Calla lily plant, Zantedeschia aethiopica; plant yellowing due to infection by Pythium species |
| 1573300 |
Pythium diseases |
Pythium spp. |
Cottony leak of cucumber. June 1997 |
| 5492804 |
black rot |
Guignardia bidwellii |
|
| 5492234 |
brown root rot |
Phellinus noxius |
Typhoo toppled diseased tree |
| 5492256 |
Pythium diseases |
Pythium spp. |
Phytium root rot |
| 5488373 |
Truncatella fungi |
Truncatella spp. |
Sphaeropsis infected stem invaded by Truncatella |
| 5488694 |
Phytophthora root and crown rot |
Phytophthora cambivora |
symptomps of Phytophthora cambivora infection on European chestnut |
| 5488709 |
Phytophthora root and crown rot |
Phytophthora cambivora |
tree mortality caused by Phytophthora cambivora on European chestnut stand |
| 5487937 |
Pythium diseases |
Pythium spp. |
off color foliage and wilting |
| 5487885 |
crown gall |
Rhizobium radiobacter |
gall |
| 1568021 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5486872 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5486878 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1572779 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Cross section of cucumber fruit showing the extent of secondary invasion of Fusarium sp. in tissue injured by low temperatures. April 1997? |
| 5485268 |
Monochaetia fungi |
Monochaetia spp. |
Taphrina infected leaf, host of Monochaetia. |
| 5484516 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Canker on stem |
| 5484515 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Symptoms |
| 5479909 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Nursery seedling with root rot |
| 5475233 |
Ganoderma butt rot of palm |
Ganoderma zonatum |
A series of cross-sections of a Ganoderma butt rot affected palm trunk. The section in the upper-left corner is the lowest section (at the soil line). The section in the lower-right corner is the furthest section from the soil line. The remaining sections are in the correct sequence from the soil line upwards. Note how the discoloration due to degrading tissue remains centralized within the trunk, but decreases as the cross-section ascends from the soil line. |
| 5475050 |
Pythium diseases |
Pythium spp. |
Pythium root rot on lentil: note lack of secondary roots, brown discoloration, and the cortex was stripped off of the inner stele of the root.? Varying levels of damage. |
| 5475049 |
Pythium diseases |
Pythium spp. |
Pythium root rot on lentil: note lack of secondary roots, brown discoloration, and the cortex was stripped off of the inner stele of the root. |
| 5475072 |
root rot |
Phellinus hartigii |
Root rot damage on lentil - yellowing of plant |
| 5475074 |
root rot |
Phellinus hartigii |
Root rot likely due to Rhizoctonia and/or Fusarium on lentil |
| 5475075 |
root rot |
Phellinus hartigii |
Root rot damage on lentil - likely a combination of Fusarium and Rhizoctonia. Healthy plant on right. |
| 5475076 |
root rot |
Phellinus hartigii |
Root rot damage on lentil - likely a combination of Fusarium and Rhizoctonia |
| 5476476 |
crown gall |
Rhizobium radiobacter |
Galls at base of young tree |
| 5476477 |
crown gall |
Rhizobium radiobacter |
Galls at base of young tree |
| 5473713 |
Phytophthora root and crown rots |
Phytophthora spp. |
Buckeye rot lesions on tomato fruit close to the ground. |
| 5472517 |
Pythium diseases |
Pythium spp. |
|
| 5430019 |
charcoal rot |
Macrophomina phaseolina |
Seed infected with Charcoal rot caused by the fungus Macrophomina phaseolina. |
| 5430020 |
charcoal rot |
Macrophomina phaseolina |
Single seed infected with Charcoal rot caused by the fungus Macrophomina phaseolina. |
| 5430021 |
charcoal rot |
Macrophomina phaseolina |
Soybean seed infected with Charcoal rot caused by the fungus Macrophomina phaseolina. |
| 5472853 |
Phytophthora root and crown rots |
Phytophthora spp. |
Buckeye rot of tomato caused by Phytophthora sp. |
| 5475243 |
Ganoderma butt rot of palm |
Ganoderma zonatum |
The section of Phoenix roebelenii on the left is the end of the trunk at the soil line and illustrates the typical trunk discoloration associated with Ganoderma butt rot. The section on the right was located further up the trunk and illustrates a trunk section unaffected by Ganoderma zonatum. |
| 5475234 |
Ganoderma butt rot of palm |
Ganoderma zonatum |
A cross-section through a Coccothrinax sp. trunk with Ganoderma butt rot. The darkened area in the center is a symptom of the trunk rot. |
| 5475230 |
Ganoderma butt rot of palm |
Ganoderma zonatum |
Sabal palmetto exhibiting an overall wilted canopy and premature death of the oldest leaves due to Ganoderma butt rot. |
| 5459210 |
black rot |
Guignardia bidwellii |
Symptomatic fruit with pycnidia evident |
| 5459209 |
black rot |
Guignardia bidwellii |
Symptomatic fruit with pycnidia evident |
| 5470051 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5470052 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5470053 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5458046 |
protozoa |
Spongospora subterranea |
Close view of Powdery Scab (Spongospora subterranea) lesions. |
| 5458044 |
protozoa |
Spongospora subterranea |
Tuber exhibiting Powdery Scab (Spongospora subterranea) lesions. |
| 5458045 |
protozoa |
Spongospora subterranea |
Powdery Scab (Spongospora subterranea) lesions. |
| 1234034 |
black rot |
Guignardia bidwellii |
|
| 1415234 |
annosum root disease |
Heterobasidion annosum |
rot. |
| 5447501 |
charcoal rot |
Macrophomina phaseolina |
|
| 5447502 |
charcoal rot |
Macrophomina phaseolina |
|
| 4823066 |
Leptographium root disease |
Leptographium procerum |
Various insects feeding on roots vector infection. Resin-impregnated soil crusts form at feeding or boring sites. Xylem becomes resin "soaked". |
| 5407837 |
crown gall |
Rhizobium radiobacter |
Agrobacterium tumefaciens induced galls on apple roots (crown gall) |
| 5443056 |
Pythium diseases |
Pythium spp. |
|
| 1440043 |
Pythium diseases |
Pythium spp. |
Stem rot occurs on tobacco transplants shortly after they are set in the field. Stem rot may begin in the plant bed and be moved to the field on infected transplants, or it may begin after plants are set in the field. The development of stem rot is sporadic, being favored by wet weather and injured plants. Under favorable conditions, Pythium attacks the stems of newly set plants causing brown, watery lesions to develop near the soil line. As the fungus disease develops, stem tissue collapse and disintegrate, causing death of the plant. Stem rot usually appears as a watery soft rot; a cottony fungus mass may be present. Stem rot may be confused with sore shin or black shank, thus requiring microscopic examination for confirmation. |
| 5408678 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Basal leaf necrosis, crown rot
Pathogen type: Fungus |
| 5408679 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Wilt and stem rot
Pathogen type: Fungus |
| 5408680 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Wilt and stem rot
Pathogen type: Fungus |
| 1415156 |
Phytophthora root and crown rot |
Phytophthora cambivora |
On oak leaves as baiting trap. Sept. 13, 2002 |
| 5439866 |
Leptographium root disease |
Leptographium spp. |
This tree will likely die in 2 years |
| 5439869 |
Leptographium root disease |
Leptographium spp. |
Advanced symptoms, tree will likely die within 1 year |
| 5439871 |
Leptographium root disease |
Leptographium spp. |
Severe symptoms, host tree will likely die within 1 year |
| 5439870 |
Leptographium root disease |
Leptographium spp. |
Tree will likey die within 1 year. |
| 5439867 |
Leptographium root disease |
Leptographium spp. |
This tree will likely die in 2 years |
| 5439868 |
Leptographium root disease |
Leptographium spp. |
This tree will likely die in 2 years |
| 5439864 |
Leptographium root disease |
Leptographium spp. |
Described in detail by Dr. Lori Eckhardt at Auburn Univ. Symptoms are thin and/or yellowish foliage and numerous pine cones. |
| 5439865 |
Leptographium root disease |
Leptographium spp. |
This tree will likely die within 3 years |
| 0364044 |
Leptographium root disease |
Leptographium procerum |
terminal damage - shoot failure |
| 5440246 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium and/or Pythium |
| 5440247 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium and/or pythium |
| 5440248 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Mum fusarium and/or pythium |
| 5440249 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Mum fusarium and/or pythium |
| 1415204 |
Armillaria root rot |
Armillaria solidipes |
July, 8, 2003 |
| 4823097 |
annosum root disease |
Heterobasidion annosum |
Incipient resinosis with associated clump of resin-impregnated soil around infected root. |
| 4823096 |
annosum root disease |
Heterobasidion annosum |
3/4 of vascular tissue resin soaked (note discoloration). |
| 4824059 |
charcoal rot |
Macrophomina phaseolina |
Wilting and discoloration of infected seedlings. |
| 4213046 |
Strumella canker |
Urnula craterium |
canker on main stem |
| 3047004 |
oak decline |
|
Mark Twain National Forest in Missouri |
| 2251062 |
Strumella canker |
Urnula craterium |
on main stem |
| 2250032 |
annosum root disease |
Heterobasidion annosum |
from decay on windthrown tree |
| 2250027 |
root diseases and rots |
|
in crown of tree |
| 2250030 |
Armillaria root rots |
Armillaria spp. |
resinosus on buttress root of Douglas-fir |
| 1137032 |
Phytophthora root disease of Port Orford cedar |
Phytophthora lateralis |
Dying tree, upper Sacramento River, California. |
| 1137023 |
black stain root disease |
Ophiostoma wageneri |
|
| 1137019 |
annosum root disease |
Heterobasidion annosum |
Butt rot. |
| 1137017 |
annosum root disease |
Heterobasidion annosum |
|
| 0364053 |
root diseases and rots |
|
basal canker (with bark removed) on sand pine |
| 0364012 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
on eucalyptus |
| 0176030 |
black rot |
Guignardia bidwellii |
Symptoms on grapevine bunches: mummification of infected berries. |
| 1436062 |
crown gall |
Rhizobium radiobacter |
on roots |
| 1234062 |
black rot |
Guignardia bidwellii |
|
| 4215007 |
Armillaria root rots |
Armillaria spp. |
basal resinosus in true fir |
| 4215011 |
annosum root disease |
Heterobasidion annosum |
Douglas-fir with thin crown and chlorotic foliage |
| 4214009 |
Armillaria root rots |
Armillaria spp. |
dead or dying pines in plantation |
| 2250029 |
black stain root disease |
Ophiostoma wageneri |
stained wood of Douglas-fir |
| 1396134 |
Armillaria root rot |
Armillaria mellea |
|
| 1371069 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Necrotic spots on cotyledons and white powder of Fusarium spores. Jochy, Slovakia |
| 1371063 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Root collar rot. seed bed, 1/0 (1 year old seedlings). Jochy, Slovakia |
| 0454035 |
Red stele root rot of strawberry |
Phytophthora fragariae fragariae |
Strawberry runner root system infected by Phytophthora fragariae var. fragariae, showing typical rat's tail appearance. |
| 0364084 |
charcoal rot |
Macrophomina phaseolina |
infected nursery of slash pine |
| 0364080 |
Phytophthora root and crown rots |
Phytophthora spp. |
on Fraser fir in nursery |
| 4824077 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Affects lateral (feeder) and tap roots. Tap root may exhibit varying degrees of resin soaking. |
| 4824014 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Damaged seedlings infected with C. floridanum. Lack of aeration as foliage mats (or lays down) down causes disease to spread across tray. |
| 4824001 |
red root and butt rot |
Inonotus circinatus |
A major pathogen of older (greater than 20 years) sand pines in both planted and natural stands. Decayed wood and roots exhibit reddish to red-brown discoloration and eventually a rot flecked with small elliptical white pockets. |
| 4823100 |
red root and butt rot |
Inonotus circinatus |
A major pathogen of older (greater than 20 years) sand pines in both planted and natural stands. Decayed wood and roots exhibit reddish to red-brown discoloration and eventually a rot flecked with small elliptical white pockets. |
| 4823076 |
sand pine root disease |
|
Old growth tree kiled by Inonotus circinatus (Fr.) R.L. Gilbertson. One of the complex of fungi (I. circinatus, Phytophthora cinnamomi, Phaeolus schweinitzii, Verticicladiella procera, Armillariella tabescens, Heterobasidion annosum) that cause Sand Pine Root Disease. |
| 4823092 |
annosum root disease |
Heterobasidion annosum |
Wind throw of infected trees. |
| 4823090 |
annosum root disease |
Heterobasidion annosum |
Thinning crown of infected tree (center) |
| 4823074 |
sand pine root disease |
|
resin leaking from trunk caused by a complex of fungi (Inonotous circinatus, Phytophthora cinnamomi, Phaeolus schweinitzii, Verticicladiella procera, Armillariella tabescens, Heterobasidion annosum). |
| 1371076 |
Truncatella fungus |
Truncatella hartigii |
Strangulation of root collar is similar to herbicide damage or severe drought. Jochy, Slovakia |
| 4823071 |
sand pine root disease |
|
Resin leakage at base of tree. Caused by a complex of fungi (Inonotus circinatus, Phytophthora cinnamomi, Phaeolus schweinitzii, Verticicladiella procera, Armillariella tabescens, Heterobasidion annosum). |
| 4215005 |
Armillaria root rots |
Armillaria spp. |
dead young jackpines (infection center) in center |
| 5435587 |
charcoal rot |
Macrophomina phaseolina |
|
| 2251091 |
laminated root disease |
Phellinus weirii |
decay in cedar |
| 1415087 |
Armillaria root rots |
Armillaria spp. |
Root rot. July 11, 2002 |
| 1415158 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Sept. 13, 2002 |
| 1476134 |
crown gall |
Rhizobium radiobacter |
Crown gall infection in container grown cotoneaster |
| 1398201 |
Armillaria root rots |
Armillaria spp. |
40 year old recently killed white spruce with bark removed at the tree base. Chequamegon National Forest, 2004 |
| 4215004 |
Armillaria root rots |
Armillaria spp. |
group of windthrown lodgepole pine trees in infection center |
| 3227004 |
annosum root disease |
Heterobasidion annosum |
infected tree with thin crown |
| 4823002 |
Armillaria root rot |
Armillaria tabescens |
Infected trees on Jonathan Dickinson State Park, Florida USA |
| 4822099 |
Armillaria root rot |
Armillaria tabescens |
Mycelial felt on base of stem of India Rosewood |
| 1415230 |
Armillaria root rots |
Armillaria spp. |
Necrotic bark. Aug. 25, 2003 |
| 1415210 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Leaf necrosis on seedling. July 8, 2003 |
| 1371036 |
Armillaria root rot |
Armillaria solidipes |
light orange brown color moving from the edge to the center of the stem. Kežmarok, Slovakia. |
| 1137018 |
annosum root disease |
Heterobasidion annosum |
|
| 1415159 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Sept. 13, 2002 |
| 1238015 |
Strumella canker |
Urnula craterium |
Blue Ridge, SC. |
| 4823001 |
Armillaria root rot |
Armillaria tabescens |
Dead trees at Jonathan Dickinson State Park, Florida USA |
| 0808047 |
Armillaria root rots |
Armillaria spp. |
North Fork John Day Ranger District, Umatilla National Forest, northeastern Oregon |
| 1399019 |
Leptographium root disease |
Leptographium procerum |
wilt symptoms and resinosis |
| 1399021 |
Leptographium root disease |
Leptographium procerum |
diffuse canker behind resinosis at root collar |
| 1400128 |
Tomentosus root disease |
Onnia tomentosus |
Windthrown spruce in Inonotus pocket, in Quebec, Canada. |
| 1400127 |
Tomentosus root disease |
Onnia tomentosus |
Decay in cross section of wood from butt of infected spruce. Quebec, Canada. |
| 1400103 |
Armillaria root rots |
Armillaria spp. |
Dying aspen, Nicolet National Forest, Wisconsin. Bark cut away to show strip kill on stem. Bark on root cut away to show armillaria rhizomorphs. See image #1400102. |
| 1371038 |
annosum root disease |
Heterobasidion annosum |
Red rot of heartwood. Göttingen, Germany |
| 1371011 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Stand symptoms. Story, Germany |
| 1397105 |
Armillaria root rots |
Armillaria spp. |
Root failure. |
| 1399020 |
Leptographium root disease |
Leptographium procerum |
resinosis |
| 4823084 |
red root and butt rot |
Inonotus circinatus |
Old growth trees kiled by Inonotus circinatus (Fr.) R.L. Gilbertson. One of the complex of fungi (Inonotus circinatus, Phytophthora cinnamomi, Phaeolus schweinitzii, Verticicladiella procera, Armillariella tabescens, Heterobasidion annosum) that cause Sand Pine Root Disease. |
| 4822095 |
Armillaria root rot |
Armillaria tabescens |
Mycelial white felt on roots, water soaking, "s" zone line |
| 1371031 |
Armillaria root rot |
Armillaria solidipes |
Dieback of group of trees. Kežmarok, Slovakia |
| 1233227 |
Pythium diseases |
Pythium spp. |
Rhizoctonia spp. injury (left and right) and Pythium spp. injury in center to young seedlings. Damping off is a problem in tobacco plant beds but can be a problem in the field soon after transplanting. Pythium spp. causes a watery, soft rot of the lower stem and root system and is more common during cool, wet weather. Rhizoctonia causes brown, irregular cankers to develop on the lower stems and injury is more common during warm weather. Lesions can enlarge and girdle the stem while plants that are not severely damaged by Rhizoctonia may recover in the field. |
| 1234144 |
black rot |
Botryosphaeria obtusa |
|
| 1468229 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1468228 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1468342 |
Armillaria root rots |
Armillaria spp. |
October 1983 |
| 1415003 |
oak decline |
|
May, 2001 |
| 1436146 |
annosum root disease |
Heterobasidion annosum |
on trunk |
| 4823075 |
sand pine root disease |
|
Old growth tree kiled by Inonotus circinatus (Fr.) R.L. Gilbertson. One of the complex of fungi (I. circinatus, Phytophthora cinnamomi, Phaeolus schweinitzii, Verticicladiella procera, Armillariella tabescens, Heterobasidion annosum) that cause Sand Pine Root Disease. |
| 1371017 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Necrosis on the roots and root collar. Story, Germany |
| 1371037 |
Armillaria root rot |
Armillaria solidipes |
Root deformation due to excess of resin flow. Banská Štiavnica, Slovakia |
| 4823005 |
Ganoderma root and butt rot |
Ganoderma lucidum |
thinning crown of infected tree |
| 4215006 |
Armillaria root rots |
Armillaria spp. |
symptomatic and killed jack pine trees |
| 3047012 |
Armillaria root rots |
Armillaria spp. |
white fungal mat under bark |
| 1436097 |
black rot |
Guignardia bidwellii |
on stem |
| 1415155 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Bark necrosis of root collar. Sept. 13, 2002 |
| 1415256 |
Ganoderma root and butt rot |
Ganoderma australe |
rot. |
| 1415232 |
Armillaria root rots |
Armillaria spp. |
Pseudosclerotic layers. Aug. 25, 2003 |
| 1415269 |
annosum root disease |
Heterobasidion annosum |
Trunk failure |
| 4822096 |
Armillaria root rot |
Armillaria tabescens |
Mycelial felt on roots |
| 1467158 |
black stain root disease |
Ophiostoma wageneri |
vascular discoloration |
| 1371014 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Tar spots, with bark removed. Lesse, Germany |
| 1436086 |
root diseases and rots |
|
|
| 1415096 |
annosum root disease |
Heterobasidion annosum |
Rot. July 16, 2002 |
| 3047013 |
Armillaria root rots |
Armillaria spp. |
white fungal mat under bark |
| 0176031 |
black rot |
Guignardia bidwellii |
Detail of grapevine berries infected by Guignardia bidwellii: browning, bluing and desiccation of berries; presence of numerous black dots (pycnidia or young perithecia). |
| 1241675 |
annosum root disease |
Heterobasidion annosum |
An useful sign of annosus root disease is an irregular pattern of staining in root and butt heartwood. In Douglas-fir the stain is red-brown. |
| 5061017 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Canker on walnut caused by Fusarium sp. |
| 5061018 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Cankiers on the bole of a young walnut, caused by Fusarium sp. |
| 5061020 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Canker on the bole of a young walnut |
| 5061019 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Canker at base of a young walnut |
| 1415086 |
Armillaria root rots |
Armillaria spp. |
Root rot. July 11, 2002 |
| 1236183 |
black rot |
Botryosphaeria obtusa |
|
| 4823073 |
sand pine root disease |
|
Resin soaked wood caused by a complex of fungi (Inonotus circinatus, Phytophthora cinnamomi, Phaeolus schweinitzii, Verticicladiella procera, Armillariella tabescens, Heterobasidion annosum). |
| 1415268 |
annosum root disease |
Heterobasidion annosum |
Tree dieback. |
| 4823099 |
annosum root disease |
Heterobasidion annosum |
Crown symptoms: Dead trees (left), fading trees (right). |
| 4823098 |
annosum root disease |
Heterobasidion annosum |
White stringy rot ("shredded wheat") indicative of advanced infection. |
| 1399018 |
Leptographium root disease |
Leptographium procerum |
resinosis |
| 1371012 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Story, Germany |
| 1436069 |
black rot |
Botryosphaeria obtusa |
|
| 4823091 |
annosum root disease |
Heterobasidion annosum |
Stand mortality. |
| 1137024 |
black stain root disease |
Ophiostoma wageneri |
Tangential surface of stained sapwood in lower bole. |
| 1415228 |
annosum root disease |
Heterobasidion annosum |
Rot. Aug. 25, 2003 |
| 1234216 |
black rot |
Guignardia bidwellii |
|
| 5435621 |
brown root rot |
Phellinus noxius |
death of tree caused by brown root rot |
| 5435624 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1571183 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
External signs of Fusarium fruit rot on cantaloupe show white fungal growth at the ground scar. April 1995 |
| 1571186 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
This images shows Fusarium fruit rot on cantaloupe. Fruit cross section shows the extent of colonization into the fruit. Note how the lesion separates cleanly from diseased tissue. April 1995 |
| 1571187 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
This image is of Fusarium fruit rot on cantaloupe. Fruit cross section shows the extent of colonization into the fruit. Note how the lesion separates cleanly from diseased tissue. April 1995 |
| 1571184 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
External signs of Fusarium fruit rot on cantaloupe show white fungal growth at the ground scar. April 1995 |
| 1571185 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
External symptoms of Fusarium fruit rot on cantaloupe show discoloration and softening of tissue at the ground scar. The presence of white fungal growth is dependent on the amount of moisture present. April 1995 |
| 1436095 |
black rot |
Guignardia bidwellii |
on fruit |
| 0176028 |
black rot |
Guignardia bidwellii |
Symptomson a grapevine leaf: necrotic circular lesions scattered over lamina. |
| 2250056 |
black stain root disease |
Ophiostoma wageneri |
stained roots of Douglas-fir |
| 2733054 |
annosum root disease |
Heterobasidion annosum |
stringy decay of diseased root |
| 4215031 |
red root and butt rot |
Inonotus circinatus |
|
| 1234220 |
black rot |
Guignardia bidwellii |
|
| 1137025 |
black stain root disease |
Ophiostoma wageneri |
Transverse surface of stained sapwood in lower bole. |
| 1436021 |
charcoal rot |
Macrophomina phaseolina |
|
| 4215012 |
annosum root disease |
Heterobasidion annosum |
dead ponderosa pine tree next to ponderosa stump |
| 1436163 |
Pythium diseases |
Pythium spp. |
|
| 0027052 |
Pythium diseases |
Pythium spp. |
|
| 1468231 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1436096 |
black rot |
Guignardia bidwellii |
on leaf |
| 1415131 |
Armillaria root rot |
Armillaria solidipes |
Aug. 12, 2002 |
| 4822097 |
Armillaria root rot |
Armillaria tabescens |
Mycelial felt on roots and water soaking of xylem tissue. |
| 1301072 |
annosum root disease |
Heterobasidion annosum |
Pocket mortality |
| 5424470 |
Pythium diseases |
Pythium spp. |
Pythium infected roots seen coming out the bottom of the float tray on the right, healthy roots on the left. |
| 5424469 |
Pythium diseases |
Pythium spp. |
A float tray showing an area with advanced stunting and yellow of infected plants. |
| 5432158 |
charcoal rot |
Macrophomina phaseolina |
Young, infected plants during severe drought and heat conditions |
| 5432159 |
charcoal rot |
Macrophomina phaseolina |
Young, infected plants during severe drought and heat conditions |
| 5432160 |
charcoal rot |
Macrophomina phaseolina |
Young, infected plants during severe drought and heat conditions |
| 1415045 |
Armillaria root rot |
Armillaria solidipes |
Top Dieback. June 3, 2002 |
| 1241667 |
annosum root disease |
Heterobasidion annosum |
These young ponderosa pines have been killed by annosus root disease. The hollow pine stump is a good indicator of annosus root disease root disease in this stand. Infected roots of this stump may extend 50 feet or more from the stump base. |
| 1467153 |
black stain root disease |
Ophiostoma wageneri |
|
| 1234033 |
black rot |
Guignardia bidwellii |
lesion |
| 1399013 |
annosum root disease |
Heterobasidion annosum |
butt swell |
| 1137021 |
black stain root disease |
Ophiostoma wageneri |
|
| 1402006 |
Pythium diseases |
Pythium spp. |
Under severe situations, the plant bed may be bare. Newly transplanted tobacco is vulnerable to damping-off during cool, wet weather. Pythium lesions are large and wet. They extend up the plant tissue or encompass the entire stem. |
| 5418706 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
White heads due to Fusarium crown rot |
| 5418707 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
White heads due to Fusarium crown rot |
| 0541048 |
annosum root disease |
Heterobasidion annosum |
|
| 4822098 |
Armillaria root rot |
Armillaria tabescens |
Mycelial felt on roots and water soaking of xylem tissue. |
| 5430070 |
charcoal rot |
Macrophomina phaseolina |
Young, infected plants |
| 0534033 |
Armillaria root rot |
Armillaria solidipes |
|
| 0534034 |
Armillaria root rot |
Armillaria solidipes |
|
| 0534035 |
Armillaria root rot |
Armillaria solidipes |
|
| 1241669 |
Armillaria root rot |
Armillaria solidipes |
Resinosus on a young, thin-barked Douglas-fir is often the first sign of infection. |
| 0454033 |
Red stele root rot of strawberry |
Phytophthora fragariae fragariae |
Strawberry plants infected by Phytophthora fragariae var. fragariae, showing poor growth and wilting. |
| 2733052 |
annosum root disease |
Heterobasidion annosum |
trees infected with root rot can be distinguished from healthy trees by their pale green color (infected tree on left) |
| 2250040 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
brown cubical root and butt decay, and fruiting bodies |
| 1247122 |
annosum root disease |
Heterobasidion annosum |
|
| 1241666 |
root diseases and rots |
|
A cluster of young Douglas-fir and grand fir have been killed by root disease near this old stump. |
| 0590001 |
crown gall |
Rhizobium radiobacter |
of euonymus |
| 1241663 |
root diseases and rots |
|
If bark beetles attack dying trees they often hasten mortality. If mortality is hastened, the trees may not have time to shed many needles before they die. In this case, the crown may turn uniformly yellow or red. |
| 1241665 |
Armillaria root rot |
Armillaria solidipes |
This young western white pine has been killed by Armillaria root disease which was probably harbored by the adjacent stump. |
| 1467148 |
annosum root disease |
Heterobasidion annosum |
|
| 1399127 |
crown gall |
Rhizobium radiobacter |
Poor pruning resulting in spread of crown gall |
| 1440004 |
Pythium diseases |
Pythium spp. |
Damping-off affects tobacco at any stage of growth in the plant bed. The disease first appears as irregular areas of wilted, yellowed, stunted, or dead plants. These symptoms are the result of girdling of the lower stem of the tobacco plants by either Rhizoctonia or Pythium fungi species.Pythium usually affects the young tobacco plant near the soil line. A soft, brown, watery rot girdles the stem, causing the plants to fall over. Plants affected after stems harden may not die but turn yellow due to injury to the stem and root system. Pythium sometimes attacks transplants shortly after they are set in the field, causing a stem rot. |
| 1467155 |
black stain root disease |
Ophiostoma wageneri |
|
| 1467020 |
black stain root disease |
Ophiostoma wageneri |
|
| 1402005 |
Pythium diseases |
Pythium spp. |
Soil-borne fungi are the main cause of damping-off. Symptoms first appear on the stem of seedlings as a brown to black rot. The decay extends up the stem and causes the seedlings to collapse. Roots of affected plants may remain healthy. Seedlings die in patches. |
| 1467154 |
black stain root disease |
Ophiostoma wageneri |
|
| 2250069 |
Pythium diseases |
Pythium spp. |
in nursery of grand fir |
| 1241659 |
root diseases and rots |
|
Root disease mortality in young stands often goes undetected before about 20 years of age. From the scattered or small groups of mortality, the disease generally progresses to large mosaics of poorly stocked forest by age 80-100. |
| 1241662 |
root diseases and rots |
|
A stress cone crop produced on a tree with thinning foliage and shortened terminal growth is an indication of root disease. |
| 1241654 |
root diseases and rots |
|
Root disease is often easily recognized from afar. Changes in tree density and clusters of young trees or brush assocaiated with tree mortality are good indicators of root disease. |
| 1137022 |
black stain root disease |
Ophiostoma wageneri |
|
| 1137020 |
annosum root disease |
Heterobasidion annosum |
disease center in a stand of white fir. |
| 4824076 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Affects lateral (feeder) and tap roots. Tap root may exhibit varying degrees of resin soaking. |
| 2250068 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
root swelling/lesion |
| 1415002 |
oak decline |
|
May, 2001 |
| 1234061 |
black rot |
Guignardia bidwellii |
|
| 4824038 |
charcoal rot |
Macrophomina phaseolina |
Late summer infection with seedlings exhibiting stunted growth, off-color foliage, wilting and/or redding foliage. |
| 1241689 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Schweinitzii root and butt rot is the most common brown cubical decay of Douglas-fir. It is common in other conifers species as well. The disease often starts in the roots when trees are young but is seldom seen causing butt rot until trees are mature or overmature. The cull usually only extends eight feet or less above the ground. Fruiting bodies are present on both of these examples but they are not commonly produced in this way. Usually they are found on the ground within a few feet of an infected tree. A single conk may indicate extensive infection throughout a stand. |
| 1277108 |
Phytophthora disease of alders |
Phytophthora alni |
|
| 1241661 |
root diseases and rots |
|
Crown symptoms of root disease (right) are most evident when compared to a healthy crown (left). |
| 1415011 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
On seedlings, April 18, 2002 |
| 5426931 |
brown root rot |
Phellinus noxius |
Wilt of Rhododendron caused by root rot fungus |
| 5426929 |
brown root rot |
Phellinus noxius |
Wilt of pear tree caused by root rot fungus in pear orchard |
| 1241668 |
Armillaria root rot |
Armillaria solidipes |
Fresh and older (bark) resinosus at the base of an infected Douglas-fir. |
| 2110005 |
Phytophthora disease of alders |
Phytophthora alni |
Mature, riparian common alder (A. glutinosa) stand heavily impacted by root and collar rot caused by P. alni; surviving healthy alder in the center may indicate occurrence of resistance. |
| 2110006 |
Phytophthora disease of alders |
Phytophthora alni |
Mature, riparian common alder (A. glutinosa) stand with high impact of Phytophthora root and collar rot. |
| 2110007 |
Phytophthora disease of alders |
Phytophthora alni |
Alder plantation on former agricultural land; note infected grey alder (A. incana) with sparse, chlorotic and small-sized foliage. |
| 2110012 |
Phytophthora disease of alders |
Phytophthora alni |
Root system of a 2-year-old nursery grown common alder (A. glutinosa) with necrotic lesions caused by P. alni. |
| 2110010 |
Phytophthora disease of alders |
Phytophthora alni |
Mature common alder (A. glutinosa) with collar rot by P. alni (note tarry spots at the outer bark) growing in a forest stand; introduction of the pathogen via alder plantation in the neighbourhood established with infested planting stock. |
| 2110011 |
Phytophthora disease of alders |
Phytophthora alni |
2-yr-old sprouts of of an 8-yr-old coppiced Alnus glutinosa showing wilting due to root and collar rot caused by P. alni. |
| 2110009 |
Phytophthora disease of alders |
Phytophthora alni |
Common alder (A. glutinosa) in a non-flooded forest plantation with root and collar rot caused by P. alni. |
| 5407877 |
red stele |
Phytophthora fragariae |
Strawberry roots showing the reddish brown stele associated with Phytophthora fragariae (red stele disease) |
| 2110008 |
Phytophthora disease of alders |
Phytophthora alni |
Grey alder (A. incana) with collar rot caused by P. alni; note the typical tarry spots at the outer bark and the tongue-shaped orange-brown necrosis of the inner bark. |
| 2110001 |
Phytophthora disease of alders |
Phytophthora alni |
Mature common alder with collar rot caused by P. alni showing sparse, chlorotic and small-sized foliage. |
| 0364046 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
diseased root |
| 0176032 |
black rot |
Guignardia bidwellii |
Damage on grapevine shoots: long brown-bordered cankers, more or less sunken, generally carrying fruiting bodies. |
| 1400116 |
basal cankers |
|
Swollen butt and woodpecker damage. At the time this photo was taken, this tree had no signs of chestnut blight. The swollen butt and woodpecker damage seemed to be unrelated to chestnut blight. The tree has since succombed to the disease. |
| 1371015 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Uniform yellowing of young tree due to root damage. Story, Germany |
| 1467019 |
black stain root disease |
Ophiostoma wageneri |
|
| 1371013 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Tar spots. Lesse, Germany |
| 5059009 |
Strumella canker |
Urnula craterium |
Strumella canker on oak |
| 5059010 |
Strumella canker |
Urnula craterium |
Strumella canker on oak |
| 5059011 |
Strumella canker |
Urnula craterium |
Strumella canker on oak |
| 5059012 |
Strumella canker |
Urnula craterium |
Strumella canker on oak |
| 5059013 |
Strumella canker |
Urnula craterium |
Strumella canker on oak |
| 1150005 |
annosum root disease |
Heterobasidion annosum |
infection point in loblolly plantation
3rd place in the 2002 Southern Forest Insect Work Conference Photo Salon in the Other category. |
| 5418730 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium crown rot |
| 5418729 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium crown rot |
| 5418728 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium crown rot |
| 5418708 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium crown rot |
| 5418709 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium crown rot |
| 5418710 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium crown rot |
| 5411327 |
charcoal rot |
Macrophomina phaseolina |
internal stem discoloration |
| 5417128 |
fairy rings |
|
|
| 5417130 |
fairy rings |
|
|
| 5417127 |
fairy rings |
|
|
| 5417126 |
fairy rings |
|
|
| 5417124 |
fairy rings |
|
|
| 5417125 |
fairy rings |
|
|
| 5403537 |
brown root rot |
Phellinus noxius |
Defoliation symptoms in pear field |
| 5403535 |
brown root rot |
Phellinus noxius |
|
| 5253100 |
oak decline |
|
Oak dieback and mortality caused by drought, twolined chestnut borer and Armillaria root rot. |
| 5254001 |
oak decline |
|
Oak decline caused by drought, twolined chestnut borer and Armillaria root rot. |
| 5045087 |
oak decline |
|
Oak tree mortality caused by drought, twolined chestnut borer and Armillaria root rot. |
| 5045086 |
oak decline |
|
Oak killed by drought, twolined chestnut borer, and Armillaria root rot. |
| 5039013 |
Phytophthora root and crown rots |
Phytophthora spp. |
Leaf symptoms caused by Phytophthora sp. on Rhododendron. |
| 5253099 |
Phytophthora root and crown rots |
Phytophthora spp. |
Bleeding canker on oak |
| 5410696 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5410639 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Late symptoms of wheat scab. |
| 5410701 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Resistant and susceptible symptoms of wheat scab. |
| 5410699 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5410703 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5410705 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5410702 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Resistant ans susceptible symptoms of wheat scab. |
| 5410695 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5410697 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5410698 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5410694 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5410693 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5410674 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1534011 |
club root of crucifers |
Plasmodiophora brassicae |
|
| 5393914 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A hop field with Fusarium canker infection caused by Fusarium sambucinum. |
| 5394180 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Common hop plants showing symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394179 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing root symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394177 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing root symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394178 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing root symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394176 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394175 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394173 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing root symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394174 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing root symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394172 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing foliar symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394171 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing foliar symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394170 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing foliar symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394169 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing root symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394150 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5394149 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop plant showing symptoms of Fusarium canker caused by Fusarium sambucinum on a field at Oregon, USA. |
| 5393240 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop cone showing symptoms of Fusarium cone tip blight caused by Fusarium spp. |
| 5393241 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop cone showing symptoms of Fusarium cone tip blight caused by Fusarium spp. |
| 5393239 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A common hop cone showing symptoms of Fusarium cone tip blight caused by Fusarium spp. |
| 5393238 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Common hop cones showing symptoms of Fusarium cone tip blight caused by Fusarium spp. in a field at Idaho. |
| 5393237 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Common hop cones showing symptoms of Fusarium cone tip blight caused by Fusarium spp. in a field at Idaho. |
| 5393236 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Common hop cones showing symptoms of Fusarium cone tip blight caused by Fusarium spp. in a field at Idaho. |
| 5394490 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Scabby seed |
| 5394453 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Partial bleaching of the head, Fusarium head blight |
| 5394451 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Partial bleaching of the head, Fusarium head scab |
| 5394454 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Partial bleaching of the head, Fusarium head blight |
| 5394455 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Partial bleaching of the head; Fusarium head blight |
| 5394476 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
White head caused by Fusarium crown rot |
| 5394477 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
White heads due to fusarium crown rot |
| 5395237 |
Pythium diseases |
Pythium spp. |
Root rot due to Pythium and Rhizoctonia, 2009 |
| 5395238 |
Pythium diseases |
Pythium spp. |
Root rot due to Pythium and Rhizoctonia |
| 5394465 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Discoloration of the stem |
| 1563124 |
charcoal rot |
Macrophomina phaseolina |
09Sep93 |
| 2176077 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5393179 |
club root of crucifers |
Plasmodiophora brassicae |
|
| 5393173 |
brown root rot |
Phellinus noxius |
Defoliation caused by brown root rot |
| 5049026 |
root diseases and rots |
|
Unidentified root and butt rot in black spruce. |
| 5049030 |
root diseases and rots |
|
Unidentified root and butt rot in black spruce. |
| 5049027 |
root diseases and rots |
|
|
| 5049029 |
root diseases and rots |
|
Unidentified root and butt rot of black spruce. |
| 5043046 |
Armillaria root rots |
Armillaria spp. |
Windthrow caused by Armillaria root rot in a large bur oak on a golf course. |
| 5382938 |
Armillaria root rots |
Armillaria spp. |
|
| 5382939 |
Armillaria root rots |
Armillaria spp. |
|
| 5382934 |
Armillaria root rots |
Armillaria spp. |
|
| 5382935 |
Armillaria root rots |
Armillaria spp. |
|
| 5382936 |
Armillaria root rots |
Armillaria spp. |
|
| 5382937 |
Armillaria root rots |
Armillaria spp. |
|
| 5382860 |
annosum root disease |
Heterobasidion annosum |
|
| 5382854 |
annosum root disease |
Heterobasidion annosum |
|
| 5382855 |
annosum root disease |
Heterobasidion annosum |
|
| 5382856 |
annosum root disease |
Heterobasidion annosum |
|
| 5382847 |
annosum root disease |
Heterobasidion annosum |
|
| 5382851 |
annosum root disease |
Heterobasidion annosum |
|
| 5382852 |
annosum root disease |
Heterobasidion annosum |
|
| 5382853 |
annosum root disease |
Heterobasidion annosum |
|
| 5382857 |
annosum root disease |
Heterobasidion annosum |
|
| 5382858 |
annosum root disease |
Heterobasidion annosum |
|
| 5382859 |
annosum root disease |
Heterobasidion annosum |
|
| 5382848 |
annosum root disease |
Heterobasidion annosum |
|
| 5382849 |
annosum root disease |
Heterobasidion annosum |
|
| 5382850 |
annosum root disease |
Heterobasidion annosum |
|
| 5382842 |
annosum root disease |
Heterobasidion annosum |
|
| 5382843 |
annosum root disease |
Heterobasidion annosum |
|
| 5382844 |
annosum root disease |
Heterobasidion annosum |
|
| 5382835 |
annosum root disease |
Heterobasidion annosum |
|
| 5382836 |
annosum root disease |
Heterobasidion annosum |
|
| 5382837 |
annosum root disease |
Heterobasidion annosum |
|
| 5382845 |
annosum root disease |
Heterobasidion annosum |
|
| 5382846 |
annosum root disease |
Heterobasidion annosum |
|
| 5382825 |
Armillaria root rot |
Armillaria solidipes |
|
| 5382826 |
Armillaria root rot |
Armillaria solidipes |
|
| 5382827 |
Armillaria root rot |
Armillaria solidipes |
|
| 5382823 |
Armillaria root rot |
Armillaria solidipes |
|
| 5382824 |
Armillaria root rot |
Armillaria solidipes |
|
| 5364407 |
crown gall |
Rhizobium radiobacter |
Crown gall at the root crown of an apple tree. |
| 5364406 |
crown gall |
Rhizobium radiobacter |
Aerial (branch) gall on a peach tree, symptomatic of infection with crown gall (Agrobacterium tumefaciens). |
| 5387791 |
annosum root disease |
Heterobasidion annosum |
6/4/2008; decayed wood |
| 5357075 |
hairy root disease |
Rhizobium rhizogenes |
Roots of a young mulberry tree in Thailand showing symptoms of hairy root disease. |
| 5357073 |
root diseases and rots |
|
Mulberry tree displaying symptoms of root rot in a plantation in Thailand. |
| 5357072 |
root diseases and rots |
|
Mulberry tree displaying symptoms of root rot in a plantation in Thailand. |
| 5357071 |
root diseases and rots |
|
Mulberry tree in Thailand displaying symptoms of root rot. |
| 5035016 |
oak decline |
|
|
| 5035005 |
oak decline |
|
Branch dieback in pin oak. |
| 5035006 |
oak decline |
|
Branch dieback in pin oak, probably caused by two-lined chestnut borer. |
| 5390503 |
Pythium diseases |
Pythium spp. |
Rice fine roots rotted by various fungal pathogens |
| 5390529 |
Pythium diseases |
Pythium spp. |
Rice roots showing symptoms of rot by several fungal pathogens |
| 5390533 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Rice grain showing symptoms and signs of Fusarium head blight infection caused by Fusarium spp. |
| 5373386 |
club root of crucifers |
Plasmodiophora brassicae |
|
| 5373387 |
club root of crucifers |
Plasmodiophora brassicae |
|
| 5331079 |
club root of crucifers |
Plasmodiophora brassicae |
|
| 5389813 |
Leptographium root disease |
Leptographium procerum |
Resin flow on trunk |
| 5389814 |
Leptographium root disease |
Leptographium procerum |
Characteristic wedge-shaped discoloration in cross-section of trunk |
| 5379769 |
Ganoderma root and butt rot |
Ganoderma australe |
|
| 5379773 |
Armillaria root rots |
Armillaria spp. |
|
| 5382601 |
Phytophthora disease of alders |
Phytophthora alni |
|
| 5382602 |
Phytophthora disease of alders |
Phytophthora alni |
|
| 5382598 |
Phytophthora disease of alders |
Phytophthora alni |
|
| 5382599 |
Phytophthora disease of alders |
Phytophthora alni |
|
| 1415266 |
crown gall |
Rhizobium radiobacter |
Galls |
| 5379793 |
crown gall |
Rhizobium radiobacter |
Galls |
| 5382600 |
Phytophthora disease of alders |
Phytophthora alni |
bark necrosis |
| 5382897 |
root disease |
Onnia circinata |
|
| 5366529 |
Phytophthora root and crown rots |
Phytophthora spp. |
Phytophthora root & crown rot infection of raspberry caused by Phytophthora spp.. |
| 5029083 |
Leptographium root disease |
Leptographium spp. |
Leptographium stain in red pine |
| 5335088 |
crown gall |
Rhizobium radiobacter |
|
| 5335089 |
crown gall |
Rhizobium radiobacter |
|
| 1525355 |
Pythium diseases |
Pythium spp. |
Pythium on Impatiens |
| 1525358 |
Pythium diseases |
Pythium spp. |
Pythium on Impatiens |
| 1525359 |
Pythium diseases |
Pythium spp. |
Pythium on Impatiens |
| 1525360 |
Pythium diseases |
Pythium spp. |
Pythium on Impatiens |
| 1525361 |
Pythium diseases |
Pythium spp. |
Pythium on Impatiens |
| 1525362 |
Pythium diseases |
Pythium spp. |
Pythium on Impatiens |
| 1525353 |
Pythium diseases |
Pythium spp. |
Pythium on Impatiens |
| 1525354 |
Pythium diseases |
Pythium spp. |
Pythium on Impatiens |
| 1525466 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525467 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525465 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525468 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525575 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5332051 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5333020 |
Pythium diseases |
Pythium spp. |
Pennsylvania State University field trials |
| 5333023 |
Pythium diseases |
Pythium spp. |
|
| 5333051 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5335087 |
crown gall |
Rhizobium radiobacter |
on blackberry |
| 5336031 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5336029 |
Pythium diseases |
Pythium spp. |
|
| 5336038 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5336041 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
|
| 5336073 |
Pythium diseases |
Pythium spp. |
|
| 5336051 |
Pythium diseases |
Pythium spp. |
|
| 5336063 |
Pythium diseases |
Pythium spp. |
|
| 5336085 |
Pythium diseases |
Pythium spp. |
|
| 5337039 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5337041 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5337040 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5337066 |
Phytophthora root and crown rots |
Phytophthora spp. |
on rhododendron |
| 5335026 |
Leptographium root disease |
Leptographium procerum |
|
| 5335092 |
black rot |
Guignardia bidwellii |
|
| 5335097 |
black rot |
Guignardia bidwellii |
|
| 5335085 |
black rot |
Botryosphaeria obtusa |
|
| 1525146 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 1525147 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 1525178 |
Phytophthora root and crown rots |
Phytophthora spp. |
Phytophthora on Coleus |
| 1525152 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525189 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium on Crocus |
| 1525190 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525179 |
Phytophthora root and crown rots |
Phytophthora spp. |
Phytophthora on coleus |
| 1525192 |
Pythium diseases |
Pythium spp. |
|
| 1525191 |
Pythium diseases |
Pythium spp. |
|
| 5368519 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Large pumpkin with extensive rotting. |
| 5368807 |
Phytophthora root and crown rots |
Phytophthora spp. |
Single, decayed fruit with darkened, infected area. |
| 5368804 |
Phytophthora root and crown rots |
Phytophthora spp. |
Fruit decay is dark brown often with darkened, wavy rings around the margin. |
| 5368805 |
Phytophthora root and crown rots |
Phytophthora spp. |
Single, decayed fruit with darkened, wavy rings around the margin. |
| 5368806 |
Phytophthora root and crown rots |
Phytophthora spp. |
Single, decayed fruit with darkened, wavy rings around the margin. |
| 5369048 |
Pythium diseases |
Pythium spp. |
Roots turn gray/black and outer root tissue can pull away easily. |
| 5369049 |
Pythium diseases |
Pythium spp. |
Roots turn gray/black and outer root tissue can pull away easily. |
| 5033001 |
crown gall |
Rhizobium radiobacter |
Agrobacterium galls on roots. |
| 5368505 |
charcoal rot |
Macrophomina phaseolina |
discoloration of tissue due to infection |
| 5368506 |
charcoal rot |
Macrophomina phaseolina |
discoloration of tissue due to infection |
| 5368507 |
charcoal rot |
Macrophomina phaseolina |
discoloration of tissue due to infection |
| 5368508 |
charcoal rot |
Macrophomina phaseolina |
discoloration of tissue due to infection |
| 5368624 |
Pythium diseases |
Pythium spp. |
tissue decay due to infection by a species of Pythium |
| 5368625 |
Pythium diseases |
Pythium spp. |
tissue decay due to infection by a species of Pythium |
| 5368721 |
black rot |
Botryosphaeria obtusa |
Irregular brown spots/blotches with lighter centers and darker borders on leaves |
| 5368722 |
black rot |
Botryosphaeria obtusa |
Irregular brown spots/blotches with lighter centers and darker borders on leaves |
| 5368875 |
Pythium diseases |
Pythium spp. |
Plants were overwatered which stressed the plants. Roots were infected with Pythium and Rhizoctonia. |
| 5368876 |
Pythium diseases |
Pythium spp. |
Plants were overwatered which stressed the plants. Roots were infected with Pythium and Rhizoctonia. |
| 5332025 |
violet root rot |
Helicobasidium brebissonii |
|
| 5331080 |
club root of crucifers |
Plasmodiophora brassicae |
|
| 5372437 |
crown gall |
Rhizobium radiobacter |
|
| 5372433 |
crown gall |
Rhizobium radiobacter |
|
| 5372434 |
crown gall |
Rhizobium radiobacter |
|
| 5372430 |
crown gall |
Rhizobium radiobacter |
|
| 5372431 |
crown gall |
Rhizobium radiobacter |
|
| 5372432 |
crown gall |
Rhizobium radiobacter |
|
| 5223075 |
crown gall |
Rhizobium radiobacter |
|
| 5223076 |
crown gall |
Rhizobium radiobacter |
|
| 5223040 |
crown gall |
Rhizobium radiobacter |
|
| 5371965 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371964 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371963 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371962 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371961 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371960 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371959 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371958 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371957 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371956 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371955 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371953 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371954 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371951 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371952 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371950 |
Armillaria root rot |
Armillaria tabescens |
|
| 5361920 |
Phytophthora root and crown rots |
Phytophthora spp. |
An apple tree with a Phytophthora crown rot infection caused by Phytophthora spp. in the field. |
| 5361918 |
Phytophthora root and crown rots |
Phytophthora spp. |
Premature fall leaf coloration of an apple tree due to Phytophthora crown rot infection caused by Phytophthora spp. in the field. |
| 5373570 |
Pythium diseases |
Pythium spp. |
|
| 5373571 |
Pythium diseases |
Pythium spp. |
|
| 5373355 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373356 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373328 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373327 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373326 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373325 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373324 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373322 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373323 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373320 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373321 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373319 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373318 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373302 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373303 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373304 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373301 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373300 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373298 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373299 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373286 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5371812 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
|
| 5371813 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
|
| 5373283 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373285 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373282 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373279 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373280 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373281 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373276 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373277 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5371811 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
|
| 5373272 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373273 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373274 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373275 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373270 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373271 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373269 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373266 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373267 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373268 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373264 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373265 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373263 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373253 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5373262 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 5371777 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
|
| 5372296 |
Armillaria root rot |
Armillaria tabescens |
|
| 5372933 |
Monochaetia fungi |
Monochaetia spp. |
|
| 5372934 |
Monochaetia fungi |
Monochaetia spp. |
|
| 5372935 |
Monochaetia fungi |
Monochaetia spp. |
|
| 5372932 |
Monochaetia fungi |
Monochaetia spp. |
|
| 5371768 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
|
| 5371769 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
|
| 5223011 |
charcoal rot |
Macrophomina phaseolina |
|
| 5371767 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
|
| 5372596 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5372592 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5372587 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5372559 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 5371622 |
Armillaria root rot |
Armillaria tabescens |
|
| 1949026 |
laminated root disease |
Phellinus weirii |
Inonotus weirii infection of Pseudotsuga menziesii, showing dead tree and trees with thinned crowns and yellowing. |
| 1949027 |
laminated root disease |
Phellinus weirii |
Wind-thrown 60-year-old Pseudotsuga menziesii, showing advanced Inonotus weirii decay in the roots and root collar; note how the roots break close to the root collar, creating "root balls". |
| 1949028 |
laminated root disease |
Phellinus weirii |
Reddish brown stain typical of infection by Inonotus weirii in a 60-year-old Pseudotsuga menziesii tree; infection does not usually extend much above 2-4 m up the bole in a living tree. |
| 0725043 |
Phytophthora root rot of raspberry |
Phytophthora fragariae rubi |
Sudden wilt of suckers of the year. Foci extend from one year to another according to the soil cultural operations and rainwash. |
| 0725032 |
Phytophthora root rot of raspberry |
Phytophthora fragariae rubi |
Symptoms of Phytophthora fragariae var. rubi on raspberry roots (Rubus idaeus var. Glen Moy). Note the reddish coloured area on the root. |
| 0725033 |
Phytophthora root rot of raspberry |
Phytophthora fragariae rubi |
Symptoms of Phytophthora fragariae var. rubi on raspberry roots (Rubus idaeus var. Glen Moy). Note the brownish area sharply demarcated from healthy tissue. |
| 0725034 |
Phytophthora root rot of raspberry |
Phytophthora fragariae rubi |
Wilting of a raspberry cane of two-years old, when fruits are riped. Plants are dying by dessication, as roots completely loose their assimilation capability. |
| 0725005 |
Phytophthora root rot of raspberry |
Phytophthora fragariae rubi |
Symptoms of Phytophthora fragariae var. rubi on raspberry roots (Rubus idaeus var. Glen Moy). Note the brownish area sharply demarcated from healthy tissue and the redish discoloration on some roots. |
| 0725006 |
Phytophthora root rot of raspberry |
Phytophthora fragariae rubi |
Healthy raspberry roots (right) and roots infected by Phytophthora fragariae var. rubi (left). On infected plants, the secondary root system is completely destroyed, and wilting is then irreversible. |
| 1473190 |
Armillaria root rots |
Armillaria spp. |
dying aspen |
| 5357108 |
fairy rings |
|
Lawn showing symptoms of infection with fairy ring fungi. Lens cap provided for scale. |
| 5362738 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A melon/cantaloupe fruit with severe Fusarium rot infection caused by Fusarium spp.. |
| 5362737 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A melon/cantaloupe fruit with symptoms of Fusarium rot caused by Fusarium spp.. |
| 5362736 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
The rind of a melon/cantaloupe fruit with symptoms of Fusarium rot caused by Fusarium spp.. |
| 5362735 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A melon/cantaloupe rind with symptoms of Fusarium rot caused by Fusarium spp.. |
| 5372622 |
Ganoderma root rots |
Ganoderma spp. |
|
| 5372611 |
Ganoderma root rots |
Ganoderma spp. |
|
| 5372610 |
Ganoderma root rots |
Ganoderma spp. |
|
| 5372608 |
Ganoderma root rots |
Ganoderma spp. |
|
| 5372609 |
Ganoderma root rots |
Ganoderma spp. |
|
| 5372607 |
Ganoderma root rots |
Ganoderma spp. |
|
| 5371665 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371653 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371644 |
Armillaria root rot |
Armillaria tabescens |
|
| 5371618 |
Armillaria root rot |
Armillaria tabescens |
|
| 5372145 |
Armillaria root rot |
Armillaria tabescens |
|
| 5372144 |
Armillaria root rot |
Armillaria tabescens |
|
| 5361118 |
Pythium diseases |
Pythium spp. |
A cowpea (black-eyed pea/southern pea) plant infected with Pythium wilt caused by Pythium spp.in the field. |
| 5357029 |
fairy rings |
|
Lawn showing necrotic areas typical of Type 1 infection with fairy ring fungi. |
| 5359704 |
Pythium diseases |
Pythium spp. |
Lawn infected with Pythium blight (Pythium sp.) in Pueblo, Colorado, in 1981. |
| 5356749 |
root rot |
Phellinus hartigii |
Symptoms of root rot in triticale. |
| 5357027 |
fairy rings |
|
Fairway of a golf course with dark green areas typical of Type 2 infection with fairy ring fungi. |
| 5356787 |
crown gall |
Rhizobium radiobacter |
Crown galls on apple rootstocks in Brazil. |
| 5366530 |
Phytophthora root and crown rots |
Phytophthora spp. |
Raspberry plants in a field showing symptoms of infection with Phtytophthora root and crown rot (Phytophthora sp.). |
| 5366528 |
Phytophthora root and crown rots |
Phytophthora spp. |
Soil removed from raspberry roots to show symptoms of infection with Phtytophthora root and crown rot (Phytophthora sp.). |
| 5358419 |
Pythium diseases |
Pythium spp. |
Melon seedlings showing damping off symptoms caused by Pythium spp.. |
| 5365612 |
Pythium diseases |
Pythium spp. |
A snap bean (Phaseolus vulgaris) field showing wilt infection caused by the fungus Pythium spp.. |
| 5365611 |
Pythium diseases |
Pythium spp. |
A snap bean (Phaseolus vulgaris) field showing wilt infection caused by the fungus Pythium spp.. |
| 5366753 |
Armillaria root rots |
Armillaria spp. |
Pine tree showing symptoms of infection with Armillaria root disease. |
| 5357310 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Potato plants showing Fusarium wilt symptoms caused by Fusarium spp. in the field. |
| 5357309 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A potato plant showing Fusarium wilt symptoms caused by Fusarium spp. in the field. |
| 5357308 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
A potato plant showing Fusarium wilt symptoms caused by Fusarium spp. in the field. |
| 5357525 |
charcoal rot |
Macrophomina phaseolina |
Ashy stem blight of beans caused by Macrophomina phaseolina. |
| 5366935 |
laminated root disease |
Phellinus weirii |
Evidence of laminated root disease (Phellinus weirii) in douglas-fir. |
| 5367246 |
crown gall |
Rhizobium radiobacter |
Cottonwood tree afflicted with crown gall (Agrobacterium tumefaciens). |
| 5367245 |
crown gall |
Rhizobium radiobacter |
Cottonwood tree afflicted with crown gall (Agrobacterium tumefaciens). |
| 5367198 |
black stain root disease |
Ophiostoma wageneri |
Black stain (Leptographium wageneri) fungus on the root of a pinyon pine. |
| 5367199 |
black stain root disease |
Ophiostoma wageneri |
Black stain (Leptographium wageneri) fungus under the bark of a pinyon pine |
| 5367200 |
black stain root disease |
Ophiostoma wageneri |
Black stain (Leptographium wageneri) fungus on the root of a pinyon pine. |
| 5367201 |
black stain root disease |
Ophiostoma wageneri |
Pinyon pine showing severe symptoms of infection with black stain (Leptographium wageneri) fungus. |
| 5367196 |
Armillaria root rots |
Armillaria spp. |
White fir (Abies concolor) trees showing symptoms of either armillaria (Armillaria sp.) or annosum (Heterobasidion annosum) root rot. |
| 5367195 |
annosum root disease |
Heterobasidion annosum |
Root rot symptoms in a tree, due to either annosum (Heterobasidion annosum) or Armillaria sp. |
| 5367186 |
Armillaria root rots |
Armillaria spp. |
Ponderosa pine trees showing symptoms of infection with armillaria root rot (Armillaria sp.). |
| 5366751 |
Armillaria root rots |
Armillaria spp. |
Subalpine fir (Abies lasiocarpa) showing symptoms of armillaria root rot (Armillaria sp.). |
| 5366750 |
Armillaria root rots |
Armillaria spp. |
Ponderosa pine forest (Pinus ponderosa) with trees showing symptoms of armillaria root rot (Armillaria sp.). |
| 5366745 |
Armillaria root rots |
Armillaria spp. |
Ponderosa pine forest (Pinus ponderosa) with trees showing symptoms of armillaria root rot (Armillaria sp.). |
| 5366647 |
charcoal rot |
Macrophomina phaseolina |
Charcoal stalk rot of field corn (Macrophomina phaseolina).
|
| 5366646 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium stalk rot and nodal discoloration of field corn. |
| 5366640 |
Pythium diseases |
Pythium spp. |
Corn seedling showing symptoms of seedling blight, caused by Pythium sp. and/or Penicillium sp. |
| 5356759 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fusarium on the roots of a corn plant. |
| 5361259 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Stalk rot in the root crown of a corn plant caused by Fusarium sp. |
| 5356768 |
crown gall |
Rhizobium radiobacter |
Stem of a grapevine showing symptoms of crown gall (Agrobacterium tumefaciens). |
| 5365956 |
charcoal rot |
Macrophomina phaseolina |
A drybean plant showing symptoms of ashy stem blight caused by Macrophomina phaseolina in the field. |
| 5365954 |
charcoal rot |
Macrophomina phaseolina |
A drybean plant showing symptoms of ashy stem blight caused by Macrophomina phaseolina in the field. |
| 5365955 |
charcoal rot |
Macrophomina phaseolina |
A drybean plant showing symptoms of ashy stem blight caused by Macrophomina phaseolina in the field. |
| 5365953 |
charcoal rot |
Macrophomina phaseolina |
a drybean plant showing symptoms of ashy stem blight caused by Macrophomina phaseolina in the field. |
| 5365952 |
charcoal rot |
Macrophomina phaseolina |
Drybean plants showing symptoms of ashy stem blight caused by Macrophomina phaseolina in the field. |
| 5365950 |
charcoal rot |
Macrophomina phaseolina |
Drybean plants showing symptoms of ashy stem blight caused by Macrophomina phaseolina in the field. |
| 5365951 |
charcoal rot |
Macrophomina phaseolina |
Drybean plant showing symptoms of ashy stem blight caused by Macrophomina phaseolina in the field. |
| 1524202 |
charcoal rot |
Macrophomina phaseolina |
|
| 5361373 |
Pythium diseases |
Pythium spp. |
Drybean seedlings showing symptoms of Pythium damping off caused by Pythium spp. |
| 5360374 |
charcoal rot |
Macrophomina phaseolina |
Drybean plants showing symptoms of ashy (charcoal) stem blight caused by Macrophomina phaseolina. |
| 5360372 |
charcoal rot |
Macrophomina phaseolina |
Drybean seedlings showing symptoms of ashy (charcoal) stem blight caused by Macrophomina phaseolina. |
| 5360373 |
charcoal rot |
Macrophomina phaseolina |
Drybean stem showing symptoms of ashy (charcoal) stem blight caused by Macrophomina phaseolina. |
| 1496365 |
black rot |
Botryosphaeria obtusa |
black rot and bitter rot on apple |
| 5356936 |
Corticium fungus |
Corticium salmonicolor |
Thread Blight |
| 1473174 |
artist's conk |
Ganoderma applanatum |
windthrow; photo taken 8/1973 |
| 1473175 |
artist's conk |
Ganoderma applanatum |
sporophore; photo taken 9/1973 |
| 1473125 |
annosum root disease |
Heterobasidion annosum |
cambial symptoms on pine; 7/1/1964 |
| 1473039 |
artist's conk |
Ganoderma applanatum |
|
| 1473017 |
root rot |
Phellinus hartigii |
decay of Tree 177 |
| 1473012 |
trunk rot |
Pholiota adiposa |
tree #532 |
| 1492225 |
Phytophthora root and crown rots |
Phytophthora spp. |
Phytophthora isolated |
| 1494028 |
crown gall |
Rhizobium radiobacter |
seedlings |
| 1492068 |
crown gall |
Rhizobium radiobacter |
|
| 1492059 |
crown gall |
Rhizobium radiobacter |
|
| 1492061 |
crown gall |
Rhizobium radiobacter |
Crown gall peach |
| 1492062 |
crown gall |
Rhizobium radiobacter |
Crown gall peach |
| 1492076 |
crown gall |
Rhizobium radiobacter |
Crown gall peach; Plant Disease Clinic |
| 1492063 |
crown gall |
Rhizobium radiobacter |
Crown gall peach |
| 1492064 |
crown gall |
Rhizobium radiobacter |
Crown gall peach |
| 1492065 |
crown gall |
Rhizobium radiobacter |
Crown gall peach |
| 1492066 |
crown gall |
Rhizobium radiobacter |
Crown gall peach |
| 1492067 |
crown gall |
Rhizobium radiobacter |
|
| 1492078 |
crown gall |
Rhizobium radiobacter |
|
| 1492069 |
crown gall |
Rhizobium radiobacter |
|
| 1492070 |
crown gall |
Rhizobium radiobacter |
|
| 1492071 |
crown gall |
Rhizobium radiobacter |
Crown gall peach |
| 1492072 |
crown gall |
Rhizobium radiobacter |
|
| 1492075 |
crown gall |
Rhizobium radiobacter |
Plant Dis. Clinic |
| 1494029 |
crown gall |
Rhizobium radiobacter |
seedlings |
| 1494031 |
crown gall |
Rhizobium radiobacter |
|
| 1494025 |
crown gall |
Rhizobium radiobacter |
seedlings |
| 1494026 |
crown gall |
Rhizobium radiobacter |
seedlings |
| 1492105 |
crown gall |
Rhizobium radiobacter |
1961 |
| 1492077 |
crown gall |
Rhizobium radiobacter |
|
| 1496372 |
black rot |
Botryosphaeria obtusa |
Black rot on apple |
| 1496373 |
black rot |
Botryosphaeria obtusa |
black rot on apple; late season infection |
| 1496359 |
black rot |
Botryosphaeria obtusa |
Black rot |
| 1496360 |
black rot |
Botryosphaeria obtusa |
black rot on marginal fining apple leaves |
| 1496362 |
black rot |
Botryosphaeria obtusa |
Black rot on apple |
| 1496380 |
black rot |
Botryosphaeria obtusa |
Black rot on Golden delicious |
| 1496382 |
black rot |
Botryosphaeria obtusa |
Black rot on apple |
| 1496363 |
black rot |
Botryosphaeria obtusa |
Black rot on apple |
| 1496122 |
black rot |
Botryosphaeria obtusa |
black rot |
| 1496123 |
black rot |
Botryosphaeria obtusa |
black rot on apple |
| 1496112 |
black rot |
Botryosphaeria obtusa |
Frog eye |
| 1496113 |
black rot |
Botryosphaeria obtusa |
Black rot on apple |
| 1496115 |
black rot |
Botryosphaeria obtusa |
black rot on apple |
| 1496033 |
black rot |
Botryosphaeria obtusa |
black rot |
| 1496036 |
black rot |
Botryosphaeria obtusa |
Black rot |
| 1495066 |
black rot |
Guignardia bidwellii |
black rot |
| 1495067 |
black rot |
Guignardia bidwellii |
black rot on grape |
| 1495053 |
black rot |
Guignardia bidwellii |
black rot of grape |
| 1495040 |
black rot |
Guignardia bidwellii |
Black rot |
| 1495041 |
black rot |
Guignardia bidwellii |
Black rot on grape |
| 1495043 |
black rot |
Guignardia bidwellii |
Guignartiu bidwellii; Black rot |
| 1495045 |
black rot |
Guignardia bidwellii |
Black Rot |
| 1495046 |
black rot |
Guignardia bidwellii |
Black rot |
| 1495063 |
black rot |
Guignardia bidwellii |
black rot on grape |
| 1495047 |
black rot |
Guignardia bidwellii |
Black rot |
| 1495049 |
black rot |
Guignardia bidwellii |
black rot on grape |
| 1495050 |
black rot |
Guignardia bidwellii |
black rot |
| 1495051 |
black rot |
Guignardia bidwellii |
Grape black rot |
| 1495052 |
black rot |
Guignardia bidwellii |
Black rot on bunch |
| 1495069 |
black rot |
Guignardia bidwellii |
black rot on grape leaf |
| 1495055 |
black rot |
Guignardia bidwellii |
Guignardia bidwellii; black rot |
| 1495056 |
black rot |
Guignardia bidwellii |
Guignardia bidwellii; black rot |
| 1495057 |
black rot |
Guignardia bidwellii |
Guignardia bidwellii; black rot |
| 1495058 |
black rot |
Guignardia bidwellii |
Guignardia bidwellii; black rot |
| 1495062 |
black rot |
Guignardia bidwellii |
black rot |
| 5076093 |
Pythium diseases |
Pythium spp. |
Pythium cottony leak on cucumber fruit. White, cotton like mass that may cover the entire fruit. Jelly or liquid may ooze from within the fruit. |
| 1525154 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525155 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525156 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525157 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525153 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1524025 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1525137 |
Pythium diseases |
Pythium spp. |
|
| 1525134 |
Pythium diseases |
Pythium spp. |
|
| 5032085 |
Armillaria root rots |
Armillaria spp. |
Mycelial mats of Armillaria in lower bole of white spruce in Wisconsin. |
| 5032086 |
Armillaria root rots |
Armillaria spp. |
Remnants of mycelial mats on declining white spruce in Wisconsin. |
| 5032089 |
Armillaria root rots |
Armillaria spp. |
Mycelial mats on declining white spruce in Wisconsin. |
| 5047090 |
Armillaria root rots |
Armillaria spp. |
|
| 5032082 |
Armillaria root rots |
Armillaria spp. |
Heavy mycelial mat development on severely declining spruce in Wisconsin. |
| 5224013 |
crown gall |
Rhizobium radiobacter |
|
| 5224029 |
crown gall |
Rhizobium radiobacter |
|
| 5224030 |
crown gall |
Rhizobium radiobacter |
|
| 5224031 |
crown gall |
Rhizobium radiobacter |
|
| 5224032 |
crown gall |
Rhizobium radiobacter |
|
| 5224033 |
crown gall |
Rhizobium radiobacter |
|
| 5224023 |
crown gall |
Rhizobium radiobacter |
|
| 5224024 |
crown gall |
Rhizobium radiobacter |
|
| 5224025 |
crown gall |
Rhizobium radiobacter |
|
| 5224026 |
crown gall |
Rhizobium radiobacter |
|
| 5224027 |
crown gall |
Rhizobium radiobacter |
|
| 5224028 |
crown gall |
Rhizobium radiobacter |
|
| 5224015 |
crown gall |
Rhizobium radiobacter |
|
| 5224017 |
crown gall |
Rhizobium radiobacter |
|
| 5224018 |
crown gall |
Rhizobium radiobacter |
|
| 5224019 |
crown gall |
Rhizobium radiobacter |
|
| 5224020 |
crown gall |
Rhizobium radiobacter |
|
| 5224021 |
crown gall |
Rhizobium radiobacter |
|
| 5223081 |
crown gall |
Rhizobium radiobacter |
|
| 5223083 |
crown gall |
Rhizobium radiobacter |
|
| 5223077 |
crown gall |
Rhizobium radiobacter |
|
| 5223079 |
crown gall |
Rhizobium radiobacter |
|
| 5223080 |
crown gall |
Rhizobium radiobacter |
|
| 5261071 |
Armillaria root rot |
Armillaria tabescens |
|
| 5261074 |
Armillaria root rot |
Armillaria tabescens |
|
| 5261078 |
Armillaria root rot |
Armillaria tabescens |
|
| 5261079 |
Armillaria root rot |
Armillaria tabescens |
|
| 5261068 |
Armillaria root rot |
Armillaria tabescens |
|
| 5261069 |
Armillaria root rot |
Armillaria tabescens |
|
| 5261070 |
Armillaria root rot |
Armillaria tabescens |
|
| 5223066 |
crown gall |
Rhizobium radiobacter |
|
| 5223068 |
crown gall |
Rhizobium radiobacter |
|
| 5223070 |
crown gall |
Rhizobium radiobacter |
|
| 5223071 |
crown gall |
Rhizobium radiobacter |
|
| 5223072 |
crown gall |
Rhizobium radiobacter |
|
| 5223073 |
crown gall |
Rhizobium radiobacter |
|
| 5223060 |
crown gall |
Rhizobium radiobacter |
|
| 5223061 |
crown gall |
Rhizobium radiobacter |
|
| 5223062 |
crown gall |
Rhizobium radiobacter |
|
| 5223063 |
crown gall |
Rhizobium radiobacter |
|
| 5223064 |
crown gall |
Rhizobium radiobacter |
|
| 5223065 |
crown gall |
Rhizobium radiobacter |
|
| 5223074 |
crown gall |
Rhizobium radiobacter |
|
| 5223055 |
crown gall |
Rhizobium radiobacter |
|
| 5223056 |
crown gall |
Rhizobium radiobacter |
|
| 5223057 |
crown gall |
Rhizobium radiobacter |
|
| 5223058 |
crown gall |
Rhizobium radiobacter |
|
| 5223059 |
crown gall |
Rhizobium radiobacter |
|
| 5223025 |
crown gall |
Rhizobium radiobacter |
|
| 5223026 |
crown gall |
Rhizobium radiobacter |
|
| 5223038 |
crown gall |
Rhizobium radiobacter |
|
| 5223039 |
crown gall |
Rhizobium radiobacter |
|
| 5223041 |
crown gall |
Rhizobium radiobacter |
|
| 5223046 |
crown gall |
Rhizobium radiobacter |
|
| 5223022 |
crown gall |
Rhizobium radiobacter |
|
| 5223016 |
Monochaetia fungi |
Monochaetia spp. |
|
| 5222067 |
black rot |
Guignardia bidwellii |
|
| 5222068 |
black rot |
Guignardia bidwellii |
|
| 5222069 |
black rot |
Guignardia bidwellii |
|
| 5222070 |
black rot |
Guignardia bidwellii |
|
| 5223008 |
charcoal rot |
Macrophomina phaseolina |
|
| 5222089 |
charcoal rot |
Macrophomina phaseolina |
|
| 5222092 |
charcoal rot |
Macrophomina phaseolina |
|
| 5222093 |
charcoal rot |
Macrophomina phaseolina |
|
| 5222094 |
charcoal rot |
Macrophomina phaseolina |
|
| 5222095 |
charcoal rot |
Macrophomina phaseolina |
|
| 5222098 |
charcoal rot |
Macrophomina phaseolina |
|
| 5223002 |
charcoal rot |
Macrophomina phaseolina |
|
| 5223005 |
charcoal rot |
Macrophomina phaseolina |
|
| 5223006 |
charcoal rot |
Macrophomina phaseolina |
healthy plant at top |
| 5223007 |
charcoal rot |
Macrophomina phaseolina |
|
| 5030062 |
oak decline |
|
Oak decline and dieback |
| 5030063 |
oak decline |
|
Oak decline and dieback |
| 5030064 |
oak decline |
|
1997 |
| 5030065 |
oak decline |
|
Moderate to severe decline symptoms in mature red oak. |
| 5030066 |
oak decline |
|
Severe decline symptoms on oaks in the state of Colima, Mexico |
| 5030059 |
oak decline |
|
Branch dieback in upper crown. |
| 5030067 |
oak decline |
|
|
| 5031042 |
annosum root disease |
Heterobasidion annosum |
|
| 5031043 |
annosum root disease |
Heterobasidion annosum |
|
| 1504027 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Root rot; Cylindrocladium sp.; black walnut; Edwards Nursery |
| 1504015 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Root rot; Cylindrocladium; black walnut |
| 1503087 |
Armillaria root rots |
Armillaria spp. |
Armillaria root rot |
| 1503080 |
sulfur shelf |
Laetiporus sulphureus |
Heart rot; Polyporus sulphureus |
| 1503038 |
Leptographium root disease |
Leptographium procerum |
Black stain; Va. pine; |
| 1503039 |
Leptographium root disease |
Leptographium procerum |
Black stain; Va. Pine; |
| 1503040 |
Leptographium root disease |
Leptographium procerum |
Black stain; Va. Pine; |
| 1503041 |
Leptographium root disease |
Leptographium procerum |
Black stain; Va. Pine; |
| 1503042 |
Leptographium root disease |
Leptographium procerum |
Black stain; Va. Pine; |
| 1502050 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; root showing resinosis |
| 1502055 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; resinosis lob root |
| 1502056 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; root deterioration |
| 1502057 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; resinosis lob root |
| 1502059 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; sampling infected roots |
| 1502051 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; snapped stump; resinosis |
| 1502052 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; windthrow |
| 1502061 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; crown symptoms |
| 1502049 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; destroyed root |
| 1502071 |
Strumella canker |
Urnula craterium |
Strumella canker; oak |
| 1502067 |
Strumella canker |
Urnula craterium |
Strumella canker; maple |
| 1502069 |
Strumella canker |
Urnula craterium |
Strumella canker; white oak |
| 5030030 |
Leptographium root disease |
Leptographium spp. |
Dark stain in red pine caused by Leptographium sp. |
| 5030031 |
Leptographium root disease |
Leptographium spp. |
Dark staining in red pine caused by Leptographium sp. |
| 5029075 |
annosum root disease |
Heterobasidion annosum |
|
| 5027077 |
annosum root disease |
Heterobasidion annosum |
This is a root rot pocket in a mixed stand of red and white pine (Pinus resinosa and Pinus strobus) |
| 5027078 |
annosum root disease |
Heterobasidion annosum |
|
| 5027082 |
annosum root disease |
Heterobasidion annosum |
A small pocket of mortality caused by annosum root rot. |
| 5027083 |
annosum root disease |
Heterobasidion annosum |
annosum root disease pocket in red and white pine (Pinus strobus & Pinus resinosa) |
| 1479015 |
Armillaria root rots |
Armillaria spp. |
Dead young red pine killed by armillaria infection. Removing the bark at the base of the tree would reveal white mycelial mats. |
| 3037007 |
oak decline |
|
oak decline- city problems, AL |
| 3036078 |
root rot |
Phellinus hartigii |
Annosus root rot |
| 3036065 |
root rot |
Phellinus hartigii |
sand pine root canker |
| 0590024 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Cylindrocladium on sweetgum |
| 1317030 |
Phytophthora root and crown rots |
Phytophthora spp. |
|
| 1317029 |
Phytophthora root and crown rots |
Phytophthora spp. |
Pods of Theobroma cacao in central Costa Rica display symptoms of the fungal disease black pod. This disease causes pods to rot on the cacao tree during the last stages of ripening. |
| 5076100 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
White fungal growth on outside of fruit that may be pinkish in spots. |
| 5076067 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Symptoms resemble nutrient deficiency or water stress. Basal plate will detach when onions are pulled. Off-white to orange growth can be seen on or around the basal plate. |
| 5076073 |
charcoal rot |
Macrophomina phaseolina |
Brown to tan lesion, covering the entire lower stem and girdling the plant. Black "pimple-like" structures observed in the lesion area. |
| 5077024 |
club root of crucifers |
Plasmodiophora brassicae |
Knotted roots resemble root-knot nematode injury. Above ground symptoms are stunted, chlorotic, unthrifty plants due to reduced uptake of water and nutrients through roots. |
| 5077072 |
Pythium diseases |
Pythium spp. |
Attacks growing point of the root causing a split. Carrot will not form normally. |
| 5040070 |
annosum root disease |
Heterobasidion annosum |
mortality |
| 5040071 |
annosum root disease |
Heterobasidion annosum |
mortality |
| 5076077 |
Pythium diseases |
Pythium spp. |
White, fluffy mass on pods and stems causes a watery rot. Normally associated with hot temperatures and heavy rainfall. |
| 5034098 |
oak decline |
|
|
| 5034100 |
oak decline |
|
|
| 5035001 |
oak decline |
|
|
| 5035003 |
oak decline |
|
|
| 5035018 |
oak decline |
|
|
| 5039047 |
oak decline |
|
|
| 5045074 |
oak decline |
|
|
| 5056057 |
oak decline |
|
|
| 5056053 |
oak decline |
|
|
| 5056054 |
oak decline |
|
|
| 5056055 |
oak decline |
|
|
| 5039048 |
oak decline |
|
|
| 5034097 |
oak decline |
|
|
| 5049036 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
|
| 5049037 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
|
| 5053078 |
annosum root disease |
Heterobasidion annosum |
|
| 5053079 |
annosum root disease |
Heterobasidion annosum |
|
| 5053084 |
annosum root disease |
Heterobasidion annosum |
|
| 2110060 |
violet root rot |
Helicobasidium brebissonii |
purple colored teleomorph at the root collar and the base of an oak seedling (after keeping moist); fall 1998 |
| 2168099 |
dry rot |
Serpula lacrymans |
July, 2005 |
| 1241696 |
black stain root disease |
Ophiostoma wageneri |
Blackstain pattern in wood. Blackstain in pinon sapwood just under the cambium. |
| 2139062 |
black stain root disease |
Ophiostoma wageneri |
|
| 1467006 |
Tomentosus root disease |
Onnia tomentosus |
|
| 1467177 |
redwood trunk rot |
Poria sequoiae |
|
| 1467147 |
annosum root disease |
Heterobasidion annosum |
dead pine stump the focus of the infestation |
| 1399118 |
crown gall |
Rhizobium radiobacter |
|
| 1468230 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1458044 |
annosum root disease |
Heterobasidion annosum |
|
| 1458073 |
annosum root disease |
Heterobasidion annosum |
|
| 1238010 |
root diseases and rots |
|
Greer, SC |
| 1397058 |
Armillaria root rots |
Armillaria spp. |
|
| 1397108 |
Armillaria root rots |
Armillaria spp. |
With extensive root and butt decay on golf course |
| 1293004 |
Phytophthora root and crown rots |
Phytophthora spp. |
Leaf spotting; Suspect leaf spots on Camellia must be tested in the lab to verify the presence of P. ramorum. |
| 1293005 |
Phytophthora root and crown rots |
Phytophthora spp. |
Leaf spotting; Suspect leaf spots on Camellia must be tested in the lab to verify the presence of P. ramorum. |
| 1293006 |
Phytophthora root and crown rots |
Phytophthora spp. |
Leaf spotting; Suspect leaf spots on Camellia must be tested in the lab to verify the presence of P. ramorum. |
| 1415226 |
Armillaria root rots |
Armillaria spp. |
Aug. 8, 2003 |
| 1415229 |
Armillaria root rots |
Armillaria spp. |
Aug. 25, 2003 |
| 1415203 |
Armillaria root rot |
Armillaria solidipes |
July, 8, 2003 |
| 1400148 |
Phytophthora root and crown rots |
Phytophthora spp. |
Fraser fir Christmas tree killed by phytophthora root disease in poorly drained portion of plantation, North Carolina. |
| 1399069 |
Armillaria root rot |
Armillaria mellea |
Hazard tree |
| 1399012 |
annosum root disease |
Heterobasidion annosum |
peeled logs to prevent Ips build-up |
| 0454037 |
red stele |
Phytophthora fragariae |
Longitudinal section of roots of strawberry plants showing typical red-core symptoms caused by Phytophthora fragariae. |
| 1371064 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fine root rot. seed bed, 1/0 (1 year old seedlings). Jochy, Slovakia |
| 1371039 |
annosum root disease |
Heterobasidion annosum |
Red rot of heartwood. Banská Štiavnica, Slovakia |
| 1371016 |
Phytophthora root and crown rot |
Phytophthora cambivora |
Necrosis on the roots. Story, Germany |
| 1247091 |
Leptographium root disease |
Leptographium procerum |
Root-rot survey. Pitch soaking root collar |
| 1361136 |
Leptographium root disease |
Leptographium procerum |
|
| 1210059 |
Armillaria root rots |
Armillaria spp. |
Small group of dead trees |
| 1210092 |
Armillaria root rots |
Armillaria spp. |
Small group of dead trees |
| 1241653 |
root diseases and rots |
|
Root disease is often easily recognized from afar. Changes in tree density and clusters of young trees or brush assocaiated with tree mortality are good indicators of root disease. |
| 1241657 |
root diseases and rots |
|
Root disease mortality in young stands often goes undetected before about 20 years of age. |
| 1241664 |
root diseases and rots |
|
If bark beetles attack dying trees they often hasten mortality. If mortality is hastened, the trees may not have time to shed many needles before they die. In this case, the crown may turn uniformly yellow or red. |
| 1241652 |
root diseases and rots |
|
Typical root disease patch (or pocket)with dead and symptomatic trees, especially at the margins, and younger trees in the center of the patch. |
| 1241655 |
root diseases and rots |
|
Aerial photograph of root disease patches. Ringworm pattern in an otherwise uniform canopy. |
| 1241656 |
root diseases and rots |
|
Root disease mortality in young stands often goes undetected before about 20 years of age. |
| 1241658 |
root diseases and rots |
|
Root disease mortality in young stands often goes undetected before about 20 years of age. |
| 1241660 |
root diseases and rots |
|
Root disease mortality in young stands often goes undetected before about 20 years of age. From the scattered or small groups of mortality, the disease generally progresses to large mosaics of poorly stocked forest by age 80-100. |
| 1241695 |
black stain root disease |
Ophiostoma wageneri |
Pinon pines killed by blackstain root disease. |
| 1241697 |
black stain root disease |
Ophiostoma wageneri |
Blackstain pattern in wood. Stain follows annual rings and is restricted to sapwood. |
| 1241687 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Brown cubical decay in the butt end of the first log is the most common indication. |
| 1241690 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Schweinitzii root and butt rot is the most common brown cubical decay of Douglas-fir. It is common in other conifers species as well. The disease often starts in the roots when trees are young but is seldom seen causing butt rot until trees are mature or overmature. The cull usually only extends eight feet or less above the ground. Fruiting bodies are present on both of these examples but they are not commonly produced in this way. Usually they are found on the ground within a few feet of an infected tree. A single conk may indicat extensive infection throughout a stand. |
| 1241693 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Small diameter roots sometimes have a dark red resinous heart when infected. |
| 1241694 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Roots of windthrown trees with schweinitzii root rot commonly are stubbed and have gall-like swellings. |
| 1241674 |
annosum root disease |
Heterobasidion annosum |
An useful sign of annosus root disease is an irregular pattern of staining in root and butt heartwood. In firs, the stain varies from dull gray, to reddish-purple. |
| 1241679 |
annosum root disease |
Heterobasidion annosum |
Advanced decay has irregular white pockets and black fleck. It is soemwhat laminate at the beginning but eventually becomes stringy and spongy. |
| 1241698 |
Tomentosus root disease |
Onnia tomentosus |
Stain in root indicating tomentosus root disease. |
| 1241699 |
Tomentosus root disease |
Onnia tomentosus |
Advanced decay. |
| 1241671 |
Armillaria root rot |
Armillaria solidipes |
Mycelium fans of Armillaria are thick and leathery. The cambium often develops fan-shaped ridges which are discernible long after the fungus has died. |
| 1241681 |
laminated root disease |
Phellinus weirii |
Brown stain is sometimes seen in the sapwood or outer heartwood of trees with laminated root rot. |
| 1241685 |
laminated root disease |
Phellinus weirii |
Laminated root rot separates easily at the annual rings and is pitted with tiny holes. Cinnamon brown mycelium and tiny hairlike hyphae are often found in the decay. |
| 1241686 |
laminated root disease |
Phellinus weirii |
Decay from laminated root rot has distinctive round pits about pinhead-size. |
| 1241539 |
laminated root disease |
Phellinus weirii |
Laminated butt rot in western redcedar log forms concentric rings of decay. |
| 1241540 |
laminated root disease |
Phellinus weirii |
Examined longitudinally, wood decayed by Phellinus weirii separates easily into thin concentric sheets. |
| 1137033 |
Phytophthora root disease of Port Orford cedar |
Phytophthora lateralis |
Stain from POC root disease and galleries of the bark beetle Phleosinus sequoiae Hopkins on the Smith River |
| 1235234 |
annosum root disease |
Heterobasidion annosum |
windthrow |
| 2251094 |
laminated root disease |
Phellinus weirii |
decaying log |
| 1442113 |
Pythium diseases |
Pythium spp. |
|
| 1442112 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fading foliage symptoms |
| 1436159 |
Pythium diseases |
Pythium spp. |
to seedling plant caused primarily by species of the soil-borne fungi Pythium and Rhizoctonia |
| 1436072 |
black rot |
Botryosphaeria obtusa |
black rot on mummy and frog-eye stage on leaf |
| 2733053 |
annosum root disease |
Heterobasidion annosum |
root sprung or wind thrown trees indicate
root rot |
| 4824086 |
Pythium diseases |
Pythium spp. |
Scorched leaves of infected seedlings. |
| 4823095 |
annosum root disease |
Heterobasidion annosum |
Resin-soaked root xylem. |
| 4824082 |
Phytophthora root and crown rots |
Phytophthora spp. |
Infected roots growing in poorly drained nursery beds. |
| 4823035 |
crown gall |
Rhizobium radiobacter |
gall on seedling stem. Chiefland Forest Nursery, Florida USA |
| 4823036 |
crown gall |
Rhizobium radiobacter |
Gall on stem. Chiefland Forest Nursery, Florida USA |
| 4823037 |
crown gall |
Rhizobium radiobacter |
Gall on stem. Chiefland Forest Nursery, Florida USA |
| 4825030 |
Leptographium root disease |
Leptographium procerum |
Resin-soaking/staining root. Associated with insect injury |
| 4824087 |
charcoal rot |
Macrophomina phaseolina |
Marginal leaf necrosis. |
| 4824053 |
charcoal rot |
Macrophomina phaseolina |
Infected seedlings in nursery bed. |
| 4824054 |
charcoal rot |
Macrophomina phaseolina |
Wilting and reddening foliage of infected seedlings. |
| 4824055 |
charcoal rot |
Macrophomina phaseolina |
Off-colered foliage of infected seedling. |
| 4824085 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Black microsclerotia fruiting bodies on the roots of infected seedlings. |
| 4824084 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Black microsclerotia fruiting bodies on the roots of infected seedlings. |
| 4824015 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Healthy seedling (right) & seedling infected with C. floridanum (left). |
| 4824012 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Damaged seedlings infected with C. floridanum. Lack of aeration as foliage mats (or lays down) down causes disease to spread across tray. |
| 4824013 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
Damaged seedlings infected with C. floridanum. Lack of aeration as foliage mats (or lays down) down causes disease to spread across tray. |
| 2250050 |
laminated root disease |
Phellinus weirii |
decay and stain in Douglas fir |
| 2250053 |
annosum root disease |
Heterobasidion annosum |
fruiting body on ponderosa pine root |
| 2250066 |
annosum root disease |
Heterobasidion annosum |
stain and decay in root of Douglas fir |
| 2251092 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Brown decay in center of approx. 4 cm diameter root. Very common and slow-acting disease of conifers. |
| 4215032 |
red root and butt rot |
Inonotus circinatus |
old stump with residual active decay |
| 4215010 |
annosum root disease |
Heterobasidion annosum |
infected true fir w/ butt swell and insect attack |
| 4215014 |
annosum root disease |
Heterobasidion annosum |
reddish discoloration associated with early infection |
| 4215033 |
Tomentosus root disease |
Onnia tomentosus |
stained wood in early stages of decay |
| 2251093 |
Armillaria root rot |
Armillaria solidipes |
diseased sapling to left of stump |
| 2250062 |
Armillaria root rot |
Armillaria solidipes |
decayed roots of Douglas fir |
| 2250038 |
laminated root disease |
Phellinus weirii |
yellow laminated decay |
| 2250046 |
laminated root disease |
Phellinus weirii |
cross-section of trunk decay and stain |
| 2250047 |
laminated root disease |
Phellinus weirii |
wind-thrown tree |
| 2250048 |
laminated root disease |
Phellinus weirii |
stained wood |
| 2250028 |
Armillaria root rots |
Armillaria spp. |
Infection centers on mountain side |
| 2250036 |
Armillaria root rots |
Armillaria spp. |
longitudinal section of root showing resin soaking |
| 2250039 |
Armillaria root rots |
Armillaria spp. |
cross-sectioned log showing hollow due to decay |
| 2250052 |
annosum root disease |
Heterobasidion annosum |
brown streak in diseased root |
| 2250057 |
annosum root disease |
Heterobasidion annosum |
decayed root with button conks |
| 2250061 |
annosum root disease |
Heterobasidion annosum |
disease center in stand of true fir |
| 2250051 |
annosum root disease |
Heterobasidion annosum |
yellow stringy decay of ponderosa pine root |
| 2250054 |
annosum root disease |
Heterobasidion annosum |
stain and mycelium on Douglas fir |
| 2250078 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
infected seedlings, nursery pest |
| 2250049 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
root gall |
| 2250044 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
blowdown on infected trees |
| 2250055 |
black stain root disease |
Ophiostoma wageneri |
stained wood in roots
planted trees |
| 0590038 |
basal cankers |
|
often initiated by fire injury |
| 0364039 |
Leptographium root disease |
Leptographium procerum |
symptomatic tree |
| 0355024 |
Leptographium root disease |
Leptographium procerum |
basal canker resin exudation |
| 0364040 |
Leptographium root disease |
Leptographium procerum |
basal canker |
| 0364043 |
Leptographium root disease |
Leptographium procerum |
basal canker |
| 0355030 |
Armillaria root rots |
Armillaria spp. |
decayed wood present in butt of tree |
| 0364078 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
infected nursery beds |
| 0364062 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
windthrown tree |
| 0364045 |
Leptographium root disease |
Leptographium spp. |
symptomatic tree |
| 0364047 |
annosum root disease |
Heterobasidion annosum |
crown symptoms |
| 0364059 |
annosum root disease |
Heterobasidion annosum |
windthrown diseased trees |
| 0364054 |
annosum root disease |
Heterobasidion annosum |
yellow stringy decay of diseased root |
| 0364055 |
annosum root disease |
Heterobasidion annosum |
on crown of white pine, damaged tree on leaf, healthy on right |
| 0364049 |
annosum root disease |
Heterobasidion annosum |
pitch-soaked wood and sand |
