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Oak Processionary Moth Nests Found in Hamburg’s Öjendorfer Park

Authorities are using nematode treatments to combat the caterpillars threatening public health

Die Brennhaare der Raupe des Eichenprozessionsspinners können zu allergischen Reaktionen führen
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Overview

  • Nests of the oak processionary moth were located in Hamburg’s Öjendorfer Park on June 8, prompting immediate health advisories for park visitors.
  • The caterpillars produce microscopic hairs containing the toxin thaumetopoein that can induce severe dermatitis, respiratory issues and eye irritation upon contact.
  • Warmer spring temperatures linked to climate change have broadened the moth’s habitat across Saxony, Bavaria, Hesse and other states.
  • Authorities in Hamburg and Lüneburg are applying nematodes after dark to biologically reduce larvae without harming humans or the environment.
  • Residents are being asked to report any sightings of nests to local health or forestry offices to support mapping and safe removal efforts.