oak processionary moth - thaumetopoea processionea caterpillars on the tree in summer

animal bark black branch bug caterpillars close closeup control damage danger dangerous flora forest green health infection infestation insect invertebrate itch larva larvae leaf lepidoptera macro moth natural nature needle nobody oak parasite pest plague poisonous problem procession processionary processionea public rash skin summer thaumetopoea tree vermin wildlife woolly worm