| 1502037 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot life cycle - title slide |
| 1241682 |
laminated root disease |
Phellinus weirii |
Conks are rare. They grown on a root of fallen stem of a tree killed by laminated root rot. They are thin, leathery when fresh and friable with age, light weight, yellow to cinnamon brown with small pores. |
| 0364044 |
Leptographium root disease |
Leptographium procerum |
terminal damage - shoot failure |
| 4215008 |
Armillaria root rots |
Armillaria spp. |
bioluminescent mycelial fans under bark |
| 2652015 |
sulfur shelf |
Laetiporus sulphureus |
on dead Sitka spruce & hemlock in southeast Alaska |
| 2652004 |
red-belted fungus |
Fomitopsis pinicola |
on living Sitka spruce tree in Alaska |
| 2251090 |
laminated root disease |
Phellinus weirii |
yellow shrubs filling gaps caused by conifer mortality |
| 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 |
| 0808048 |
Armillaria root rots |
Armillaria spp. |
Mycelial mats on windthrown tree. North Fork John Day Ranger District, Umatilla National Forest, northeastern Oregon |
| 0364053 |
root diseases and rots |
|
basal canker (with bark removed) on sand pine |
| 4215007 |
Armillaria root rots |
Armillaria spp. |
basal resinosus in true fir |
| 2250029 |
black stain root disease |
Ophiostoma wageneri |
stained wood of Douglas-fir |
| 1396134 |
Armillaria root rot |
Armillaria mellea |
|
| 0488096 |
red-belted fungus |
Fomitopsis pinicola |
on Abies fraseri |
| 1377024 |
annosum root disease |
Heterobasidion annosum |
Small conks ("popcorn conks")of Heterobasidion annosum in the duff at the base of an eastern white pine. |
| 0364080 |
Phytophthora root and crown rots |
Phytophthora spp. |
on Fraser fir in nursery |
| 0364084 |
charcoal rot |
Macrophomina phaseolina |
infected nursery of slash pine |
| 1400035 |
hemlock varnish shelf |
Ganoderma tsugae |
conks on dead hemlock, Sylvania Wilderness, Ottawa National Forest, Michigan. |
| 2251091 |
laminated root disease |
Phellinus weirii |
decay in cedar |
| 1398201 |
Armillaria root rots |
Armillaria spp. |
40 year old recently killed white spruce with bark removed at the tree base. Chequamegon National Forest, 2004 |
| 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 |
| 1206051 |
red-belted fungus |
Fomitopsis pinicola |
fruiting body on bole |
| 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. |
| 1377022 |
annosum root disease |
Heterobasidion annosum |
A large sporocarp on a small (8 cm caliper) white pine. |
| 1399020 |
Leptographium root disease |
Leptographium procerum |
resinosis |
| 1467175 |
sulfur shelf |
Laetiporus sulphureus |
older fruiting body |
| 2652017 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
near base of living Sitka spruce in southeast Alaska |
| 1400129 |
Tomentosus root disease |
Onnia tomentosus |
dried conks |
| 1400034 |
hemlock varnish shelf |
Ganoderma tsugae |
on dead hemlock, Sylvania Wilderness, Ottawa National Forest, Michigan. |
| 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 |
| 1377025 |
annosum root disease |
Heterobasidion annosum |
Conks of Heterobasidion annosum are variable. These are very small conks in the duff at the base of an eastern white pine. |
| 1301001 |
hemlock varnish shelf |
Ganoderma tsugae |
Sporocarp |
| 1301004 |
hemlock varnish shelf |
Ganoderma tsugae |
Common heartrot fungus on Eastern hemlock. |
| 2121090 |
red-belted fungus |
Fomitopsis pinicola |
Red belted fungus, conk on a dead black spruce stem, photo taken in northern MN, St. Louis Co. |
| 2121088 |
red-belted fungus |
Fomitopsis pinicola |
External conk on a dead black spruce stem. Photo taken in St. Louis County, Mn, 2005 |
| 1467166 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
|
| 1467158 |
black stain root disease |
Ophiostoma wageneri |
vascular discoloration |
| 1467165 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
rare |
| 2121089 |
red-belted fungus |
Fomitopsis pinicola |
Red velvet fungus, conk on a dead black spruce stem, photo taken in northern MN, St. Louis Co. |
| 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. |
| 1301070 |
annosum root disease |
Heterobasidion annosum |
|
| 1467174 |
sulfur shelf |
Laetiporus sulphureus |
old sporophore |
| 1399018 |
Leptographium root disease |
Leptographium procerum |
resinosis |
| 1467010 |
annosum root disease |
Heterobasidion annosum |
|
| 2250056 |
black stain root disease |
Ophiostoma wageneri |
stained roots of Douglas-fir |
| 2733054 |
annosum root disease |
Heterobasidion annosum |
stringy decay of diseased root |
| 1468231 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1301072 |
annosum root disease |
Heterobasidion annosum |
Pocket mortality |
| 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 |
|
| 1399013 |
annosum root disease |
Heterobasidion annosum |
butt swell |
| 1241669 |
Armillaria root rot |
Armillaria solidipes |
Resinosus on a young, thin-barked Douglas-fir is often the first sign of infection. |
| 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 |
| 1241666 |
root diseases and rots |
|
A cluster of young Douglas-fir and grand fir have been killed by root disease near this old stump. |
| 2250037 |
Armillaria root rot |
Armillaria solidipes |
mycelial fan under bark at base of tree |
| 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 |
|
| 1467155 |
black stain root disease |
Ophiostoma wageneri |
|
| 1241670 |
Armillaria root rot |
Armillaria solidipes |
Cutting away the bark reveals white fan-shaped felts of Armillaria mycelium in the cambium at the root collar. |
| 1241673 |
Armillaria root rot |
Armillaria solidipes |
Even seedlings have mycellium fans in the root or root collar cambium. |
| 1467020 |
black stain root disease |
Ophiostoma wageneri |
|
| 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. |
| 1467007 |
Tomentosus root disease |
Onnia tomentosus |
|
| 2250068 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
root swelling/lesion |
| 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. |
| 1241661 |
root diseases and rots |
|
Crown symptoms of root disease (right) are most evident when compared to a healthy crown (left). |
| 2250026 |
Armillaria root rot |
Armillaria solidipes |
mycelial fan under bark of young western hemlock |
| 1241668 |
Armillaria root rot |
Armillaria solidipes |
Fresh and older (bark) resinosus at the base of an infected Douglas-fir. |
| 1467019 |
black stain root disease |
Ophiostoma wageneri |
|
| 5035076 |
Armillaria root rots |
Armillaria spp. |
Block of resin from base of tree infected by Armillaria |
| 5038091 |
annosum root disease |
Heterobasidion annosum |
Sporocarps of Heterobasidion annosum on white pine |
| 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. |
| 5029083 |
Leptographium root disease |
Leptographium spp. |
Leptographium stain in red pine |
| 5029084 |
Leptographium root disease |
Leptographium spp. |
Leptographium stain and weevil chip cocoon in red pine. |
| 1473125 |
annosum root disease |
Heterobasidion annosum |
cambial symptoms on pine; 7/1/1964 |
| 1473021 |
Armillaria root rot |
Armillaria solidipes |
dead poles |
| 1473102 |
Armillaria root rot |
Armillaria solidipes |
mycelial fans |
| 1473103 |
Armillaria root rot |
Armillaria mellea |
pathological specimens; the Armillaria is prominent in specimens on the left. Western gall rust and a conk also pictured. |
| 5032087 |
Armillaria root rots |
Armillaria spp. |
|
| 5032088 |
Armillaria root rots |
Armillaria spp. |
Mycelial mat remnants on declining white spruce in Wisconsin. |
| 5032089 |
Armillaria root rots |
Armillaria spp. |
Mycelial mats on declining white spruce in Wisconsin. |
| 5032090 |
Armillaria root rots |
Armillaria spp. |
Extensive development of mycelial mats on the root collar of recently dead white spruce in Wisconsin. |
| 5032091 |
Armillaria root rots |
Armillaria spp. |
Mycelial mats on large root of declining white spruce in Wisconsin. |
| 5032092 |
Armillaria root rots |
Armillaria spp. |
Heavy resin production at the root collar of a declining white spruce in Wisconsin. |
| 5032093 |
Armillaria root rots |
Armillaria spp. |
Mycelial mats and resin production at the root collar of a declining spruce in Wisconsin. |
| 5032080 |
Armillaria root rots |
Armillaria spp. |
|
| 5032081 |
Armillaria root rots |
Armillaria spp. |
Armillaria on roots of declining spruce in Wisconsin. |
| 5032082 |
Armillaria root rots |
Armillaria spp. |
Heavy mycelial mat development on severely declining spruce in Wisconsin. |
| 5032083 |
Armillaria root rots |
Armillaria spp. |
White mycelial mats of Armillaria sp. on declining spruce in Wisconsin. |
| 5032084 |
Armillaria root rots |
Armillaria spp. |
Mycelial mat on major root of a declining spruce tree in Wisconsin. |
| 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. |
| 5047090 |
Armillaria root rots |
Armillaria spp. |
|
| 5031042 |
annosum root disease |
Heterobasidion annosum |
|
| 5031043 |
annosum root disease |
Heterobasidion annosum |
|
| 1502044 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; H.a. conks at base of a lob bole |
| 1507015 |
heart rot |
Pyrofomes demidoffii |
Fomes juniperinus on salt cedar |
| 1504094 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
PCNB / Blotter paper; Fusarium sp.; slash pine seed |
| 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; |
| 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 |
| 1502050 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; root showing resinosis |
| 1502048 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; Borax stump treatment |
| 1502049 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; destroyed root |
| 1502051 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; snapped stump; resinosis |
| 1502052 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; windthrow |
| 1502060 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; infection center |
| 1502061 |
annosum root disease |
Heterobasidion annosum |
Annosus root rot; crown symptoms |
| 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. |
| 5029078 |
annosum root disease |
Heterobasidion annosum |
Conks at the base of a white pine. |
| 5029079 |
annosum root disease |
Heterobasidion annosum |
"Popcorn" conks of Heterobasidion annosum. |
| 5029080 |
annosum root disease |
Heterobasidion annosum |
"Popcorn" conk of Heterobasidion annosum. |
| 5029081 |
annosum root disease |
Heterobasidion annosum |
"Popcorn" conk of 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 |
|
| 5027079 |
annosum root disease |
Heterobasidion annosum |
|
| 5027080 |
annosum root disease |
Heterobasidion annosum |
A large sporocarp on a small white pine. |
| 5027081 |
annosum root disease |
Heterobasidion annosum |
A large sporocarp on a small white pine. |
| 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) |
| 5027091 |
Armillaria root rots |
Armillaria spp. |
Armillaria on 40-year-old red pine |
| 5027095 |
Armillaria root rots |
Armillaria spp. |
Armillaria spp. often produce white pads of mycelium under the bark of infected trees. |
| 5032078 |
Armillaria root rots |
Armillaria spp. |
Armillaria mycelial mat on white spruce |
| 5032079 |
Armillaria root rots |
Armillaria spp. |
|
| 5037073 |
Armillaria root rots |
Armillaria spp. |
Armillaria mycelial mat |
| 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. |
| 1398215 |
hemlock varnish shelf |
Ganoderma tsugae |
|
| 3036061 |
Ganoderma root and butt rot |
Ganoderma lucidum |
conk on root |
| 3036065 |
root rot |
Phellinus hartigii |
sand pine root canker |
| 5040070 |
annosum root disease |
Heterobasidion annosum |
mortality |
| 5040071 |
annosum root disease |
Heterobasidion annosum |
mortality |
| 5049036 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
|
| 5049037 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
|
| 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 |
|
| 1467147 |
annosum root disease |
Heterobasidion annosum |
dead pine stump the focus of the infestation |
| 1467012 |
annosum root disease |
Heterobasidion annosum |
|
| 1467018 |
black stain root disease |
Ophiostoma wageneri |
|
| 1467006 |
Tomentosus root disease |
Onnia tomentosus |
|
| 1467156 |
black stain root disease |
Ophiostoma wageneri |
|
| 1467157 |
black stain root disease |
Ophiostoma wageneri |
vascular discoloration |
| 1467159 |
black stain root disease |
Ophiostoma wageneri |
vascular discoloration |
| 1467160 |
black stain root disease |
Ophiostoma wageneri |
hyphae |
| 1467171 |
incense cedar polypore |
Tyromyces amarus |
|
| 1467172 |
incense cedar polypore |
Tyromyces amarus |
|
| 1467173 |
sulfur shelf |
Laetiporus sulphureus |
|
| 1467177 |
redwood trunk rot |
Poria sequoiae |
|
| 1467178 |
bracket fungus |
Fomitopsis rosea |
|
| 1467186 |
red-belted fungus |
Fomitopsis pinicola |
|
| 1467191 |
artist's conk |
Ganoderma applanatum |
|
| 1468344 |
Armillaria root rots |
Armillaria spp. |
stump removal |
| 1468346 |
Armillaria root rots |
Armillaria spp. |
|
| 1468230 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
|
| 1377023 |
annosum root disease |
Heterobasidion annosum |
Sporocarps |
| 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. |
| 1400006 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Schweinitzii conk in conifer stand, northern California. |
| 1399012 |
annosum root disease |
Heterobasidion annosum |
peeled logs to prevent Ips build-up |
| 1198014 |
red-belted fungus |
Fomitopsis pinicola |
|
| 1198017 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
These young sporocarps have a thick yellow rim, which will turn brown as the fungus ages. Causes a brown root and butt rot in conifers. |
| 1198031 |
red-belted fungus |
Fomitopsis pinicola |
These are young fruiting bodies, which harden and turn darker with age. |
| 1301025 |
red-belted fungus |
Fomitopsis pinicola |
|
| 1359046 |
sulfur shelf |
Laetiporus sulphureus |
On side of tree bole; Pomeroy Ranger District, Umatilla National Forest, southeastern Washington |
| 1361134 |
annosum root disease |
Heterobasidion annosum |
Conk at base of tree |
| 0806035 |
Armillaria root rot |
Armillaria mellea |
Pike and San Isabel National Forests, south-central Colorado |
| 1210059 |
Armillaria root rots |
Armillaria spp. |
Small group of dead trees |
| 1210092 |
Armillaria root rots |
Armillaria spp. |
Small group of dead trees |
| 1301062 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
|
| 1301023 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Phaeolus schweinitzii (Velvet top fungus) causes a brown cubical rot in the upper roots and lower bole of many conifer species. |
| 1301071 |
annosum root disease |
Heterobasidion annosum |
|
| 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. |
| 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. |
| 1241656 |
root diseases and rots |
|
Root disease mortality in young stands often goes undetected before about 20 years of age. |
| 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. |
| 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. |
| 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. |
| 1241678 |
annosum root disease |
Heterobasidion annosum |
Annosus root disease often is diagnosed by looking in hollows of nearby stumps where the conks are found. The lower surface has tiny pores and is cream colored. |
| 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. |
| 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. |
| 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. |
| 1241672 |
Armillaria root rot |
Armillaria solidipes |
Mushrooms of Armillaria can be produced in abundance, but are not reliably present. |
| 1241695 |
black stain root disease |
Ophiostoma wageneri |
Pinon pines killed by blackstain root disease. |
| 1241698 |
Tomentosus root disease |
Onnia tomentosus |
Stain in root indicating tomentosus root disease. |
| 1241699 |
Tomentosus root disease |
Onnia tomentosus |
Advanced decay. |
| 1241700 |
Tomentosus root disease |
Onnia tomentosus |
|
| 1241676 |
annosum root disease |
Heterobasidion annosum |
Button conks; tiny, poorly formed conks of Heterobasidion annosum are sometimes found near the root collar of killed seedlings. They are also found on small roots of larger trees. |
| 1241677 |
annosum root disease |
Heterobasidion annosum |
Annosus root disease often is diagnosed by looking in hollows of nearby stumps where the conks are found. The surface is gray or brown. |
| 1241680 |
annosum root disease |
Heterobasidion annosum |
One means of identifying annosus root disease is to incubate freshly cut sections of infected wood in a plastic bag to stimulate production of the asexual stage, Spiniger meineckellum (40x). |
| 1241681 |
laminated root disease |
Phellinus weirii |
Brown stain is sometimes seen in the sapwood or outer heartwood of trees with laminated root rot. |
| 1241697 |
black stain root disease |
Ophiostoma wageneri |
Blackstain pattern in wood. Stain follows annual rings and is restricted to sapwood. |
| 1241688 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
An old conk resembles a bovine manure pile in size and color. |
| 1241683 |
laminated root disease |
Phellinus weirii |
Cream or yellow to cinnamon colored mycelium is found on the outer bark of roots with laminated root rot. |
| 1241684 |
laminated root disease |
Phellinus weirii |
Cream or yellow to cinnamon colored mycelium is found on the outer bark of roots with laminated root rot. |
| 1241686 |
laminated root disease |
Phellinus weirii |
Decay from laminated root rot has distinctive round pits about pinhead-size. |
| 1241687 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Brown cubical decay in the butt end of the first log is the most common indication. |
| 1241691 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Phaeolus schweinitzii conks are yellow-green when fresh but age rapidly to a yellow-brown and finally dark brown color. They have a velvety cap, a short stem (stipe) and a pored green to brown lower surface. |
| 1241692 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Phaeolus schweinitzii conks are yellow-green when fresh but age rapidly to a yellow-brown and finally dark brown color. They have a velvety cap, a short stem (stipe) and a pored green to brown lower surface. |
| 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. |
| 1241545 |
red-belted fungus |
Fomitopsis pinicola |
Red belt fungus conks has a distinctive red band along the perimeter when mature and fresh but are often seen in the immature stage. |
| 1241543 |
red-belted fungus |
Fomitopsis pinicola |
Red belt fungus conks has a distinctive red band along the perimeter when mature and fresh. |
| 1241544 |
red-belted fungus |
Fomitopsis pinicola |
Red belt fungus conks has a distinctive red band along the perimeter when mature and fresh. |
| 1241540 |
laminated root disease |
Phellinus weirii |
Examined longitudinally, wood decayed by Phellinus weirii separates easily into thin concentric sheets. |
| 1241528 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Conk of the velvet top fungus the cause of Schweinitzii Root Rot. |
| 1241539 |
laminated root disease |
Phellinus weirii |
Laminated butt rot in western redcedar log forms concentric rings of decay. |
| 2251094 |
laminated root disease |
Phellinus weirii |
decaying log |
| 1442261 |
Armillaria root rot |
Armillaria mellea |
mycelial fan under bark of dying tree |
| 1442112 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
Fading foliage symptoms |
| 1442113 |
Pythium diseases |
Pythium spp. |
|
| 1442065 |
Armillaria root rots |
Armillaria spp. |
|
| 1442066 |
Armillaria root rots |
Armillaria spp. |
Mycelial fan; Rio Grande National Forest |
| 0745014 |
annosum root disease |
Heterobasidion annosum |
infection center |
| 2733053 |
annosum root disease |
Heterobasidion annosum |
root sprung or wind thrown trees indicate
root rot |
| 2733055 |
annosum root disease |
Heterobasidion annosum |
conks at base of tree |
| 2733056 |
annosum root disease |
Heterobasidion annosum |
Distribution of root rot in the southeastern United States. Red indicates high hazard soils. Blue indicates moderately hazard soils. |
| 2733057 |
annosum root disease |
Heterobasidion annosum |
treating stumps with borax |
| 3227006 |
annosum root disease |
Heterobasidion annosum |
aerial view of infection center at Nacogdoches city plant |
| 0976071 |
Armillaria root rots |
Armillaria spp. |
fan at the base of an infected tree |
| 0364052 |
Armillaria root rot |
Armillaria mellea |
rhizomorphs |
| 2250050 |
laminated root disease |
Phellinus weirii |
decay and stain in Douglas fir |
| 2250053 |
annosum root disease |
Heterobasidion annosum |
fruiting body on ponderosa pine root |
| 2250042 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
old fruiting bodies |
| 2250043 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
old, weathered fruiting bodies |
| 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. |
| 2250066 |
annosum root disease |
Heterobasidion annosum |
stain and decay in root of Douglas fir |
| 2250031 |
laminated root disease |
Phellinus weirii |
mortality centers |
| 2251093 |
Armillaria root rot |
Armillaria solidipes |
diseased sapling to left of stump |
| 2250057 |
annosum root disease |
Heterobasidion annosum |
decayed root with button conks |
| 2250033 |
root diseases and rots |
|
excavated root system |
| 2250025 |
root diseases and rots |
|
diagnosis |
| 2250047 |
laminated root disease |
Phellinus weirii |
wind-thrown tree |
| 1748085 |
annosum root disease |
Heterobasidion annosum |
Borax stump treatment |
| 2250028 |
Armillaria root rots |
Armillaria spp. |
Infection centers on mountain side |
| 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 |
| 2250058 |
Tomentosus root disease |
Onnia tomentosus |
on slash pine |
| 2250041 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
underside of fruiting bodies |
| 2250038 |
laminated root disease |
Phellinus weirii |
yellow laminated decay |
| 2250048 |
laminated root disease |
Phellinus weirii |
stained wood |
| 2250049 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
root gall |
| 2250034 |
Armillaria root rot |
Armillaria solidipes |
at base of tree |
| 2250035 |
Armillaria root rot |
Armillaria solidipes |
mycelial fan under bark at base of tree |
| 2250036 |
Armillaria root rots |
Armillaria spp. |
longitudinal section of root showing resin soaking |
| 2250044 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
blowdown on infected trees |
| 2250045 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
mortality center |
| 2250046 |
laminated root disease |
Phellinus weirii |
cross-section of trunk decay and stain |
| 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 |
| 2250055 |
black stain root disease |
Ophiostoma wageneri |
stained wood in roots
planted trees |
| 2250078 |
Fusarium wilts, blights, rots and damping-off |
Fusarium spp. |
infected seedlings, nursery pest |
| 2250084 |
red-belted fungus |
Fomitopsis pinicola |
|
| 2250086 |
red-belted fungus |
Fomitopsis pinicola |
|
| 2250061 |
annosum root disease |
Heterobasidion annosum |
disease center in stand of true fir |
| 2250062 |
Armillaria root rot |
Armillaria solidipes |
decayed roots of Douglas fir |
| 2250063 |
laminated root disease |
Phellinus weirii |
|
| 2250064 |
Armillaria root rot |
Armillaria solidipes |
|
| 0488092 |
Tomentosus root disease |
Onnia tomentosus |
on root of Tsuga canadensis |
| 0488104 |
hemlock varnish shelf |
Ganoderma tsugae |
on a hemlock log |
| 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 |
| 0364057 |
annosum root disease |
Heterobasidion annosum |
|
| 0364058 |
annosum root disease |
Heterobasidion annosum |
borax treatment on freshly cut stump |
| 0364059 |
annosum root disease |
Heterobasidion annosum |
windthrown diseased trees |
| 0364062 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
windthrown tree |
| 0364078 |
Cylindrocladium root diseases |
Cylindrocladium spp. |
infected nursery beds |
| 0364045 |
Leptographium root disease |
Leptographium spp. |
symptomatic tree |
| 0364047 |
annosum root disease |
Heterobasidion annosum |
crown symptoms |
| 0364048 |
Armillaria root rot |
Armillaria mellea |
rhizomorphs |
| 0364049 |
annosum root disease |
Heterobasidion annosum |
pitch-soaked wood and sand |
| 0364051 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
|
| 0355024 |
Leptographium root disease |
Leptographium procerum |
basal canker resin exudation |
| 0364039 |
Leptographium root disease |
Leptographium procerum |
symptomatic tree |
| 0364040 |
Leptographium root disease |
Leptographium procerum |
basal canker |
| 0364043 |
Leptographium root disease |
Leptographium procerum |
basal canker |
