Overview
- Local authorities closed the Freibad Fischerteich and Freibad Hiddesen after crews found nests of the oak processionary moth and then hired specialist firms to remove the hazardous material.
- After targeted removal using specialist methods, city officials declared the immediate danger eliminated and reopened both outdoor pools for visitors.
- Health officials say the caterpillars carry tiny detachable hairs that can cause severe skin inflammation and breathing problems and can be carried by wind without direct contact.
- Removal is resource intensive because crews use vacuum or water‑binding techniques, work is slow in hot weather, and towns are relying on limited specialist teams to inspect public spaces and schools.
- Reports are rising across the region, with municipalities recording many new sightings and warning that abandoned nests can keep their toxic hairs for years and may continue to disrupt amenities and harm pets.