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Bark removed to reveal reddish brown cambium and wood from a Nectria canker, Nectria sp. next to healthy green and white tissue.

Bark cut away to reveal live and dead wood killed by nectria canker, Nectria sp. (Pyrenomycetes) on wild lilac, ceanothus sp., Ventura Co. Photo shows strip of bark removed with dark brown necrotic and cream-colored healthy wood tissues. Credit: Jack Kelly Clark
Bark removed to reveal reddish brown cambium and wood from a Nectria canker, Nectria sp. next to healthy green and white tissue. Credit: Jack Kelly Clark
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