Municipality Venray: biological control of oak processionary caterpillars
In the Municipality of Venray a third of the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as [...] harmful to biodiversity. This is something that is high up on the political agenda, as well as being an important social issue.’ Entonem makes a big difference [...] running east to west are typically free of oak processionary caterpillar, while those running north to south still have some nests. It is possible that