Oak processionary moth is spreading: danger to life from caterpillars!

Oak processionary moth is spreading: danger to life from caterpillars!

In recent years the oak processionary moth has spread significantly in Germany. Current reports show that he has now also arrived in Saxony. These caterpillars have not only migrated beyond borders, but also pose a health risk to humans. According to World The stinging hairs of these pests cause a condition called caterpillar dermatitis, which can lead to unpleasant allergic reactions.

The oak processionary moth has established itself intensively in various federal states since the mid-1990s. Baden-Württemberg, Bavaria, Rhineland-Palatinate, North Rhine-Westphalia, Hesse, Lower Saxony, Saxony-Anhalt, Berlin, Brandenburg and Mecklenburg-Western Pomerania are particularly affected. The current infestation situation varies from state to state, but the health effects are currently more serious than the damage to the oak trees themselves, as also reported by the Mirror is reported.

The health risk

The oak processionary moth's stinging hairs, which are formed from the third larval stage onwards, contain the nettle poison thaumetopoein. These hairs can be spread widely by the wind and not only cause itching and swelling, but can also trigger asthma attacks. Thaumetopoein increases the symptoms of caterpillar dermatitis and can also cause eye irritation. More and more people in affected areas are reporting such complaints.

An interesting aspect of this invasive species is that climate change is encouraging its spread. Earlier springs and mild temperatures promote early budding of oak trees, which favors the oak processionary moth. Yellow nests of these caterpillars, which can reach the size of a football, are visible in many oak trees.

Combat measures

In order to get the oak processionary moth population under control, measures are being taken in many regions. In the Lüneburg district, for example, nematodes are used as a natural means of combating the pest. These tiny nematodes are harmless to humans and can reduce up to 90 percent of the oak processionary moth population. They are sprayed on treetops after sunset to increase effectiveness.

While oak trees are an important part of our ecosystem, protecting people comes first. Therefore, many communities are working feverishly to contain the spread of the oak processionary moth. It remains to be hoped that the measures taken are successful and that citizens will soon be able to spend time outdoors again without any worries.