Norwegian researcher warns "caterpillar from hell" could spread to Norway

A Norwegian researcher is sounding the alarm over the potential spread of the oak processionary moth caterpillar, a pest already causing significant issues in Denmark, to Norway. Dubbed the "caterpillar from hell" by residents of Odense, Denmark, the insect has become a major problem this summer.

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The problems with the oak processionary moth are a development I take very seriously. Across the ministers' areas of responsibility, we have extended a hand to the relevant authorities and asked them to assist the municipalities.

In Denmark, the problem has escalated to the point where the government is actively intervening. The Minister for Nature and Animal Welfare, Christian Rabjerg Madsen, stated that the government is taking the issue very seriously and is providing advice to municipalities and citizens. Information pages have been launched online to guide the public on what to do if they encounter the caterpillar.

Authorities are advising people to contact their local municipality if they find the oak processionary moth, use an identification app called "Arter," and cover exposed skin with long clothing and gloves when near affected trees. It is crucial to wash contaminated clothing at a minimum of 60 degrees Celsius to neutralize the allergenic substances in the caterpillar's hairs.

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In the long term, these caterpillars can come to Norway through imports with oak trees.

Anders Endrestøl, a researcher at the Norwegian Institute for Nature Research, believes it is probable that the caterpillar could spread northward to Norway, possibly through the import of oak trees. While the larvae are already well-established in Denmark, with eradication proving difficult and costly, their ability to thrive in Norway's climate remains uncertain. If they do establish themselves, they are expected to settle along the Norwegian coast in areas with oak populations, from Østfold down to the southern coast.

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In Denmark, they have almost given up; it costs too much and they are impossible to get rid of.