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  2. Host and Disease Descriptions

Apple (Malus spp.)-Cytospora Canker

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Latest revision: 
March 2024
Image related to Apple (Malus spp.)-Cytospora Canker

Note the discolored areas on this 'Honey Crisp' branch.

OSU Plant Clinic collection, 2012.
PNW Plant Disease Image

Note margin between healthy wood near top of image and diseased tissue.

OSU Plant Clinic Collection, 2016.

This Honeycrisp apple had Cytospora canker (not fire blight!).

Oregon State University Plant Clinic image, 2020.

See:

Peach (Prunus persica) - Cytospora Canker

Note: The fungus reported most often on apple in the PNW is Cytospora leucosperma.