Asterodiaspis variolosa (Ratzeburg, 1870) -- golden pit scale
on Quercus
GALL
Scales on the branches. Around each individual scale a low ride develops; heavily infested branches become knobby and malformed; also bark cracks may develop. Mainly found at the tip of the branches.
HOST PLANTS Fagaceae, monophagous
GALL
only a microscopical examination allows separation from A. minor and A. quercicola; all three species may occur on the same tree.
- Willem N. Ellis: (2021) Plant Parasites of Europe©