| Image |
Descriptor |
Description |
Photographer |
| 1468344 |
Control |
stump removal |
USDA Forest Service - Ogden Archive |
| 4799076 |
Control |
Push over logging with an excavator (with claw) to remove infected stumps |
Fred Baker |
| 4799077 |
Control |
Push over logging with an excavator (with claw) to remove infected stumps |
Fred Baker |
| 4799078 |
Control |
Push over logging with an excavator (with claw) to remove infected stumps |
Fred Baker |
| 5366746 |
Damage |
Young ponderosa pine trees (Pinus ponderosa) dying due to infection with armillaria root rot (Armillaria sp.). |
William Jacobi |
| 1505077 |
Diagram or Graphic |
Art - Shoestring root rot pattern |
Paul A. Mistretta |
| 4214007 |
Feature(s) |
mycelial fans under bark |
Minnesota Department of Natural Resources Archive |
| 4214008 |
Feature(s) |
mycelial fan under bark at base |
Minnesota Department of Natural Resources Archive |
| 4823020 |
Feature(s) |
An unknown A. spp. exhibiting rarely formed rhizomorphs. |
Edward L. Barnard |
| 5027094 |
Feature(s) |
Armillaria spp. often produce abundant quantities of white spores. |
Joseph O'Brien |
| 5032093 |
Feature(s) |
Mycelial mats and resin production at the root collar of a declining spruce in Wisconsin. |
Joseph O'Brien |
| 5047086 |
Feature(s) |
rhizomorphs |
Joseph O'Brien |
| 5047087 |
Feature(s) |
rhizomorphs |
Joseph O'Brien |
| 5047091 |
Feature(s) |
tufts of mycellium |
USDA Forest Service - Forest Health Protection - St. Paul Archive |
| 5378684 |
Feature(s) |
Rhizomorphs |
Milan Zubrik |
| 5047092 |
Fruiting Bodies |
Cluster of sporocarps |
Joseph O'Brien |
| 5047088 |
Fruiting Bodies |
|
Joseph O'Brien |
| 5047089 |
Fruiting Bodies |
|
Joseph O'Brien |
| 5042075 |
Fruiting Bodies |
|
Joseph O'Brien |
| 5047085 |
Fruiting Bodies |
|
Joseph O'Brien |
| 4215009 |
Fruiting Bodies |
|
Fred Baker |
| 5032080 |
Fruiting Bodies |
|
Joseph O'Brien |
| 5032081 |
Fruiting Bodies |
Armillaria on roots of declining spruce in Wisconsin. |
Joseph O'Brien |
| 0364041 |
Fruiting Bodies |
|
Robert L. Anderson |
| 0364050 |
Fruiting Bodies |
clusters of fruiting bodies at base of oak tree (oak decline) |
Robert L. Anderson |
| 1261013 |
Fruiting Bodies |
Honey fungus. 4 species occur in Poland. All are parasitic mushrooms causing serious damages in the forests, especially on post-agriculture lands. |
Gil Wojciech |
| 1261160 |
Fruiting Bodies |
Honey fungus, Poland |
Gil Wojciech |
| 1301005 |
Fruiting Bodies |
|
Joseph O'Brien |
| 1400100 |
Fruiting Bodies |
Armillaria mushrooms (golden color, on left) with Entoloma abortivum mushrooms (creamy white, on right). In Wisconsin hardwood stand, autumn. |
Linda Haugen |
| 1400101 |
Fruiting Bodies |
Armillaria mushrooms in a Wisconsin hardwood stand, autumn. Note one mushroom flipped over to show gills. |
Linda Haugen |
| 1400105 |
Fruiting Bodies |
Armillaria mushrooms on a hardwood and white pine site in Upper Peninsula of Michigan, in autumn. |
Linda Haugen |
| 1407053 |
Fruiting Bodies |
This is shoestring root rot. Named for the black bands that the fungus produces under dead bark, shoestring root rot often attacks weakened trees. Keep your trees healthy and vigorous through a well designed program of tree care. |
USDA Forest Service - Northeastern Area Archive |
| 1442065 |
Fruiting Bodies |
|
USDA Forest Service - Rocky Mountain Region Archive |
| 1442066 |
Sign |
Mycelial fan; Rio Grande National Forest |
USDA Forest Service - Rocky Mountain Region Archive |
| 1415231 |
Sign |
Syrrocium under necrotic bark. Aug. 25, 2003 |
Andrej Kunca |
| 1400098 |
Sign |
Rhizomorphs on dead oak |
Linda Haugen |
| 1400102 |
Sign |
Armillaria rhizomorph under bark of root on declining (but still alive) aspen. See image #1400103. Nicolet National Forest, Wisconsin. |
Linda Haugen |
| 1301008 |
Sign |
rhizomorphs |
Joseph O'Brien |
| 1210091 |
Sign |
Characteristic white mycelial fan at root collar and on large root |
Dave Powell |
| 0808048 |
Sign |
Mycelial mats on windthrown tree.
North Fork John Day Ranger District, Umatilla National Forest, northeastern Oregon |
Dave Powell |
| 0886028 |
Sign |
Rhizomorphs and mycelial fan |
Tim Tigner |
| 0976071 |
Sign |
fan at the base of an infected tree |
Dave Powell |
| 4215008 |
Sign |
bioluminescent mycelial fans under bark |
Borys M. Tkacz |
| 5032083 |
Sign |
White mycelial mats of Armillaria sp. on declining spruce in Wisconsin. |
Joseph O'Brien |
| 5032084 |
Sign |
Mycelial mat on major root of a declining spruce tree in Wisconsin. |
Joseph O'Brien |
| 5027095 |
Sign |
Armillaria spp. often produce white pads of mycelium under the bark of infected trees. |
Joseph O'Brien |
| 5032078 |
Sign |
Armillaria mycelial mat on white spruce |
Joseph O'Brien |
| 5032079 |
Sign |
|
Joseph O'Brien |
| 5027091 |
Sign |
Armillaria on 40-year-old red pine |
Joseph O'Brien |
| 3036074 |
Sign |
Myceliall mat on wood- Armillaria |
Robert L. Anderson |
| 4214010 |
Sign |
rhizomorphs under bark |
Minnesota Department of Natural Resources Archive |
| 2139061 |
Sign |
rhizomorphs |
John Guyon |
| 1468345 |
Sign |
|
USDA Forest Service - Ogden Archive |
| 1468346 |
Sign |
|
USDA Forest Service - Ogden Archive |
| 5047083 |
Sign |
Armillaria mycelial mat |
Joseph O'Brien |
| 5047084 |
Sign |
Armillaria mycelial wefts |
Joseph O'Brien |
| 5366747 |
Sign |
Hardwood log covered with rhizomorphs of armillaria root rot (Armillaria sp.). |
William Jacobi |
| 5366748 |
Sign |
Mycelial fans of armillaria root rot (Armillaria sp.) under the bark of a ponderosa pine (Pinus ponderosa). |
William Jacobi |
| 5366749 |
Sign |
Mycelial fans of armillaria root rot (Armillaria sp.) under the bark of a ponderosa pine (Pinus ponderosa). |
William Jacobi |
| 5366755 |
Sign |
Rhizomorphs of armillaria root rot (Armillaria sp.) on an aspen log. |
William Jacobi |
| 5367184 |
Sign |
Sign / symptom of armillaria root rot (Armillaria sp.) on the branch of a tree. |
William Jacobi |
| 5367185 |
Sign |
Mycelial fans of armillaria (Armillaria sp.) under the bark of a fir tree. |
William Jacobi |
| 5367187 |
Sign |
Mycelial fans of armillaria (Armillaria sp.) under the bark of a conifer tree. |
William Jacobi |
| 5367188 |
Sign |
Mycelial fans of armillaria (Armillaria sp.) under the bark of a conifer tree. |
William Jacobi |
| 5367189 |
Sign |
Rhizomorphs of Armillaria sp. on roots of a tree. |
William Jacobi |
| 5042076 |
Sign |
signs of armillaria visible in recent crack |
Joseph O'Brien |
| 5037073 |
Sign |
Armillaria mycelial mat |
Joseph O'Brien |
| 5037074 |
Sign |
Armillaria mycelial mat |
Joseph O'Brien |
| 5032087 |
Sign |
|
Joseph O'Brien |
| 5032088 |
Sign |
Mycelial mat remnants on declining white spruce in Wisconsin. |
Joseph O'Brien |
| 5032090 |
Sign |
Extensive development of mycelial mats on the root collar of recently dead white spruce in Wisconsin. |
Joseph O'Brien |
| 5032091 |
Sign |
Mycelial mats on large root of declining white spruce in Wisconsin. |
Joseph O'Brien |
| 5032092 |
Sign |
Heavy resin production at the root collar of a declining white spruce in Wisconsin. |
Joseph O'Brien |
| 5298051 |
Sign |
Decay and mycelial wefts on decayed, failed tree caused by Armillaria sp. |
Joseph O'Brien |
| 5298052 |
Sign |
Broken bole, decay and mycelial wefts caused by Armillaria sp. |
Joseph O'Brien |
| 5298067 |
Sign |
Rhizomorphs and mycelial wefts of Armillaria sp. |
Joseph O'Brien |
| 5335062 |
Sign |
mycelial fan |
Mary Ann Hansen |
| 5383029 |
Sign |
rhizomorphs |
Fabio Stergulc |
| 5383030 |
Sign |
mycellial fan |
Fabio Stergulc |
| 5389752 |
Sign |
mycelial fans + mushrooms on dying Christmas tree |
Ronald S. Kelley |
| 5392883 |
Sign |
|
Rebekah D. Wallace |
| 5392884 |
Sign |
|
Rebekah D. Wallace |
| 5366754 |
Site |
Mushroom and mycelial fan characteristic of armillaria root rot (Armillaria sp.) in a conifer tree. |
William Jacobi |
| 5366750 |
Symptoms |
Ponderosa pine forest (Pinus ponderosa) with trees showing symptoms of armillaria root rot (Armillaria sp.). |
William Jacobi |
| 5366751 |
Symptoms |
Subalpine fir (Abies lasiocarpa) showing symptoms of armillaria root rot (Armillaria sp.). |
William Jacobi |
| 5366753 |
Symptoms |
Pine tree showing symptoms of infection with Armillaria root disease. |
Mike Schomaker |
| 5367196 |
Symptoms |
White fir (Abies concolor) trees showing symptoms of either armillaria (Armillaria sp.) or annosum (Heterobasidion annosum) root rot. |
William Jacobi |
| 5367186 |
Symptoms |
Ponderosa pine trees showing symptoms of infection with armillaria root rot (Armillaria sp.). |
William Jacobi |
| 5366745 |
Symptoms |
Ponderosa pine forest (Pinus ponderosa) with trees showing symptoms of armillaria root rot (Armillaria sp.). |
William Jacobi |
| 5047090 |
Symptoms |
|
Joseph O'Brien |
| 5032089 |
Symptoms |
Mycelial mats on declining white spruce in Wisconsin. |
Joseph O'Brien |
| 5043046 |
Symptoms |
Windthrow caused by Armillaria root rot in a large bur oak on a golf course. |
Joseph O'Brien |
| 5379773 |
Symptoms |
|
Andrej Kunca |
| 5382934 |
Symptoms |
|
Andrej Kunca |
| 5382935 |
Symptoms |
|
Andrej Kunca |
| 5382936 |
Symptoms |
|
Andrej Kunca |
| 5382937 |
Symptoms |
|
Andrej Kunca |
| 5382938 |
Symptoms |
|
Andrej Kunca |
| 5382939 |
Symptoms |
|
Andrej Kunca |
| 1473190 |
Symptoms |
dying aspen |
Rocky Mountain Research Station/Forest Pathology Archive |
| 1479015 |
Symptoms |
Dead young red pine killed by armillaria infection. Removing the bark at the base of the tree would reveal white mycelial mats. |
Steven Katovich |
| 1503087 |
Symptoms |
Armillaria root rot |
Daniel H. Brown |
| 2250028 |
Symptoms |
Infection centers on mountain side |
Ralph Williams |
| 2250030 |
Symptoms |
resinosus on buttress root of Douglas-fir |
Robert L. James |
| 2250036 |
Symptoms |
longitudinal section of root showing resin soaking |
USDA Forest Service Archive |
| 2250039 |
Symptoms |
cross-sectioned log showing hollow due to decay |
James Kimmey |
| 4215004 |
Symptoms |
group of windthrown lodgepole pine trees in infection center |
Fred Baker |
| 4215005 |
Symptoms |
dead young jackpines (infection center) in center |
Fred Baker |
| 4215006 |
Symptoms |
symptomatic and killed jack pine trees |
Fred Baker |
| 4215007 |
Symptoms |
basal resinosus in true fir |
Borys M. Tkacz |
| 3047012 |
Symptoms |
white fungal mat under bark |
Theodor D. Leininger |
| 3047013 |
Symptoms |
white fungal mat under bark |
Theodor D. Leininger |
| 4214009 |
Symptoms |
dead or dying pines in plantation |
Minnesota Department of Natural Resources Archive |
| 5032085 |
Symptoms |
Mycelial mats of Armillaria in lower bole of white spruce in Wisconsin. |
Joseph O'Brien |
| 5032086 |
Symptoms |
Remnants of mycelial mats on declining white spruce in Wisconsin. |
Joseph O'Brien |
| 5032082 |
Symptoms |
Heavy mycelial mat development on severely declining spruce in Wisconsin. |
Joseph O'Brien |
| 1210059 |
Symptoms |
Small group of dead trees |
Dave Powell |
| 1210092 |
Symptoms |
Small group of dead trees |
Dave Powell |
| 0808047 |
Symptoms |
North Fork John Day Ranger District, Umatilla National Forest, northeastern Oregon |
Dave Powell |
| 1397058 |
Symptoms |
|
Joseph O'Brien |
| 1397105 |
Symptoms |
Root failure. |
Joseph O'Brien |
| 1397108 |
Symptoms |
With extensive root and butt decay on golf course |
Joseph O'Brien |
| 1398201 |
Symptoms |
40 year old recently killed white spruce with bark removed at the tree base. Chequamegon National Forest, 2004 |
Steven Katovich |
| 1400103 |
Symptoms |
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. |
Linda Haugen |
| 0355030 |
Symptoms |
decayed wood present in butt of tree |
USDA Forest Service Archive |
| 1415232 |
Symptoms |
Pseudosclerotic layers. Aug. 25, 2003 |
Andrej Kunca |
| 1468342 |
Symptoms |
October 1983 |
USDA Forest Service - Ogden Archive |
| 1415086 |
Symptoms |
Root rot. July 11, 2002 |
Andrej Kunca |
| 1415087 |
Symptoms |
Root rot. July 11, 2002 |
Andrej Kunca |
| 1415226 |
Symptoms |
Aug. 8, 2003 |
Andrej Kunca |
| 1415229 |
Symptoms |
Aug. 25, 2003 |
Andrej Kunca |
| 1415230 |
Symptoms |
Necrotic bark. Aug. 25, 2003 |
Andrej Kunca |
| 1415078 |
Trap(s) |
Root infection. July 11, 2002 |
Andrej Kunca |
