Tree specialist Wolterinck: Control of oak processionary caterpillar with Entonem
Nematodes are a better solution for urban areas.’ Wolterinck BV sprays the nematodes when the caterpillar egg casings begin to emerge. A second spraying [...] trees have at least 30% of their leaf cover, Bacillus thuringiensis can also have a good combatting effect.’ Staunch advocate Wolterinck BV is a staunch advocate [...] caterpillar. Ivo de Groot continues, ‘The product has a guaranteed firm, preventive effect, it’s a 100% natural and it helps preserve biodiversity.’