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USDA Forest Service - Northeastern Area Archive's Images

Organization: USDA Forest Service
Country: United States
Remove Filters: Agaricales(X) Root and Butt / Root and Stem Diseases(X)
7 Images of 2 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
1396134 Armillaria root rot Armillaria mellea
1396133 Armillaria root rot Armillaria mellea
1396135 Armillaria root rot Armillaria mellea
1409070 Armillaria root rot Armillaria mellea The same patterns occur with Armillaria mellea. This aspen compartmentalized decay associated with Armillaria mellea after infection in the bark was stopped.
1409072 Armillaria root rot Armillaria mellea Decay associated with Armillaria mellea in this red spruce did not spread to the center, because it was already altered. The pencil shows where wall 4 separated decayed wood from sound wood that formed after the dead area stopped developing.
1409073 Armillaria root rot Armillaria mellea In this beech root, decay associated with Armillaria mellea was strongly restricted by wall 3 at the red arrows. Again, fungi do not grow at will in a tree.
1407053 Armillaria root rots Armillaria spp. 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.

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