Oak processionary moth larvae become active in Berlin

The oak processionary moth (Thaumetopoea processionea) has entered its active phase in Berlin, with larvae moving in groups to feed from early May through mid‑June. The insects are now in the third larval stage, during which they develop urticating hairs that can cause skin irritation, itching, eye inflammation and respiratory problems in people and animals.

The Berlin Plant Protection Office, which has run a city‑wide monitoring program for years, reports that the moth’s development this year is proceeding more slowly than last year. The agency regularly updates public institutions, such as street‑ and green‑space offices, district environmental departments and the Berlin Forest Service, via its website and warning notices, advising on control measures.