Municipality Venray: biological control of oak processionary caterpillars
the tree stock in the area, some 11,000 trees, is oak. ‘We’ve been using Koppert’s nematode product Entonem as a curative measure against the oak processionary [...] something that is high up on the political agenda, as well as being an important social issue.’ Entonem makes a big difference According to Bergeijk, the results