Municipality Venray: biological control of oak processionary caterpillars
ty 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 a curative measure [...] benefit of Entonem is that nematodes kill fewer other caterpillars , which means they are less harmful to biodiversity. This is something that is high up on the [...] makes a big difference According to Bergeijk, the results have been generally positive. ‘The trees that we have treated have been 90% cleared. What is interesting