Tree specialist Wolterinck: Control of oak processionary caterpillar with Entonem
local authorities and governmental bodies. Co-owner and general director Ivo de Groot has witnessed the effect of Koppert’s nematode product Entonem on the [...] products. ‘That is effective around ten days in and if the trees have at least 30% of their leaf cover, Bacillus thuringiensis can also have a good combatting [...] staunch advocate of Entonem against the oak processionary caterpillar. Ivo de Groot continues, ‘The product has a guaranteed firm, preventive effect, it’s