eikenprocessierups

The eikenprocessierups, or oak processionary moth caterpillar, is the larval stage of the moth Thaumetopoea processionea. These caterpillars are native to southern and central Europe, and their range has been expanding northwards. They are primarily found on oak trees, where they feed on the leaves.

A distinguishing feature of the eikenprocessierups is its habit of living in communal silken nests, often found in the bark of oak trees or on the ground. They emerge at night to feed and return to their nests in procession, hence their name. The caterpillars are covered in fine, brittle hairs that can cause significant irritation to humans and animals.

These hairs contain a protein called thaumetopoein, which is released when the caterpillar is disturbed. Contact with these hairs can lead to a rash, itching, and inflammation of the skin, known as caterpillar dermatitis. Inhalation of the hairs can cause respiratory problems, and in some cases, allergic reactions.

Control measures for eikenprocessierups populations often involve biological methods, such as introducing natural predators or using specific insecticides. In areas with high infestations, public health advisories are issued to warn people about the risks and recommend precautions, such as avoiding contact with the caterpillars and their nests, and wearing protective clothing when outdoors. The presence of eikenprocessierups can also have an economic impact, as heavy defoliation of oak trees can weaken them and make them more susceptible to diseases and other pests.