Toxic Oak Processionary Moth Larvae Spread Across Denmark, Raising Concerns in Sweden
Stockholm, The Gulf Observer: The toxic larvae of the oak processionary moth, commonly referred to as the “caterpillar from hell,” have spread to several locations across Denmark, prompting concerns among experts that the species could soon reach neighbouring Sweden.
The larvae are covered with thousands of microscopic urticating hairs that can become airborne and cause severe skin rashes, eye irritation, respiratory problems, and, in rare cases, serious allergic-like reactions in both humans and animals. Health experts warn that people do not need to touch the caterpillars directly, as the hairs can be carried by the wind over considerable distances.
Authorities in Denmark have reported infestations at multiple sites, particularly in and around the city of Odense on the island of Funen, where control measures have been implemented near schools, parks, roads, and other public areas to reduce the risk of exposure. Residents have been advised to avoid affected oak trees and never attempt to remove caterpillars or their nests themselves.
The oak processionary moth primarily inhabits oak trees, where its caterpillars feed on leaves and build distinctive silk nests on trunks and branches. Experts say warmer temperatures and changing climate conditions have contributed to the insect’s steady northward expansion across Europe.
Scientists caution that Sweden could be the next country at risk if the species continues its spread from Denmark. While no widespread infestations have yet been reported in Sweden, authorities are closely monitoring the situation due to the potential public health and environmental impacts.
Experts recommend that anyone experiencing severe skin irritation, breathing difficulties, or eye symptoms after possible exposure seek medical attention promptly, while the public is urged to report suspected infestations to local authorities rather than handling them directly.
