Drippy-blight
Guides
Allokermes
oak kermes scales
Allokermes is a genus of gall-like kermes scale insects in the family Kermesidae, native to the United States and specialized on oak trees (Quercus spp.). Females are relatively large (4–5 mm), round, and mottled brown, while males are tiny (1 mm), white, and oval. The genus includes economically significant pests that cause branch dieback, reduced growth, and occasional tree mortality. At least two species are well-documented: A. kingii in the southeastern and eastern United States, and A. galliformis in the eastern United States and Colorado.