pest larvae caterpillars of the yponomeutidae family or ermine moths, formed communal webs around a tree

animal branch bug butterfly caterpillar caterpillars closeup colony communal crawl damage danger dangerous detail environment ermine family flora forest formed garden harm infection infestation infested insect larva larvae leaf macro metamorphosis moth moths natural nature nest parasite pest pesticide plague plant procession silk tree web webs wildlife worm yard yponomeutidae zoetermeer