1. UC IPM
Single, expansive bark canker caused by Paradox canker on walnut, Chandler variety, that contains lobe-like, lightly discolored necrosis in the new expansion. The dark necrosis extends completely through bark and stains wood.
Single, expansive bark canker caused by Paradox canker on walnut, Chandler variety, that contains lobe-like, lightly discolored necrosis in the new expansion. The dark necrosis extends completely through bark and stains wood.
Credit: Janine K. Hasey