Jostaberry – White Pine Blister Rust
Cronartium ribicola
Jostaberry – White Pine Blister Rust Signs & Symptoms
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- Fruiting bodies (uredinia) on leaf
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- Uredinia on affected leaf
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- Telia on leaf
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- Infected leaf top side. Odd line pattern may have other abiotic cause.
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- Symptomatic infected leaf underside
Jostaberry – White Pine Blister Rust Pathogen
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- Telia and spores on leaf
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- Uredinia cross-section
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- Base of telia with telial horns emerging
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- Spores under microscope
