Skip to main content Skip to accessibility
This website is not compatible with your web browser. You should install a newer browser. If you live in Jersey and need help upgrading call the States of Jersey web team on 440099.
Government of

Information and public services for the Island of Jersey

L'înformâtion et les sèrvices publyis pouor I'Île dé Jèrri

Oak Processionary Moth caterpillars in park

22 June 2022

Islanders are being reminded of the potential dangers of Oak Processionary Moth caterpillars, which have been found at St Andrew's Park, a private garden, and a number of other locations in the area.

The Oak Processionary Moth can be dangerous to human and animal health while it is a caterpillar. At this time of year, they collectively build nests covered in their toxic hairs which are shed into the oak tree, or blown in the wind, making the area hazardous.

Contact with the hairs can cause skin irritation, allergic reaction, intense itchiness, painful rashes, eye problems, sore throat and breathing difficulties.

Caroline Maffia, from Environment and Consumer Protection, said: "You can spot them in oak trees, where they are often clustered together. They have a grey body and dark head, and the older caterpillars have a central dark stripe with paler lines down each side. The nests look like cream, brown or black fibrous webbing on the trunks, branches and forks of branches.

"Islanders should avoid handling them, standing downwind of them, or too close to infested trees. The hairs can cause a number of health concerns, and if you're worried about a rash or other reaction then please contact your GP. Pets may also be affected, so please keep dogs away.

"Colleagues from a number of sections across the Infrastructure, Housing and Environment team are working together to remove as many of the nests as we can."

Islanders can report sightings to detailing the date, time and location. Further details of the caterpillars, how to identify them, and their potential risk to human health can be found online on

Back to top
rating button