Atropellis Canker of Pine

Canker Diseases - Conifers

Atropellis Canker of Pine

Atropellis canker

Cankers on lodgepole pine caused by Atropellis. Resin flows out of the cankered areas. Black apothecia are produced on the surface of the canker (not seen in this photo).

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Wood behind the cankered region is stained black.

Atropellis apothecia

Black apothecia of Atropellis on white pine branches with cankers.

Atropellis apothecia on branch

Higher magnification showing the black apothecia on the branch cankers. When dry the apothecia curl up but when wet they are cup-like structures.

Atropellis on pine

Atropellis branch cankers on southern pine.