Oak processionary caterpillar is making a comeback: a peak of the pest is expected especially in these provinces

After a number of calm years, the oak processionary caterpillar is on the rise again. Biologists expect a peak especially in the northern provinces. “The first oak processionary caterpillars were born last week, which is a record,” says Arnold van Vliet, expert at the Processionary Caterpillar Knowledge Platform, which closely monitors the pest.

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