Varnishlike appearance and gumming on a bud killed by shot hole, Wilsonomyces carpophilus. The overwintering stage of the fungus is visible as dark specks, sporodochium or spore-forming bodies, in tan lesions surrounded by blackened areas on the twig.

Gumming on dead bud, sporodochia in tan lesions surrounded by blackened area on twig Credit: Jack Kelly Clark
Credit: Jack Kelly Clark