Processionary caterpillars are a threat to the environment and the living things that inhabit it. They lay eggs which hatch into larvae which begin to eat pine needles and build nests of white silk. The caterpillars develop thousands of stinging hairs that can cause severe irritation and allergic reactions if they come into contact with the skin, eyes or respiratory tract. It is therefore important not to touch the caterpillars or approach the nests or stop near infested trees to avoid health risks. Pets, such as dogs and cats, are also at risk if they sniff or eat them. Processionary caterpillars can defoliate trees, making them more vulnerable to other pests.
The PROCEREX® trap was designed to capture the caterpillars of the pine processionary Thaumetopoea pityocampa. The ecological trap uses the social behavior of processionary caterpillars to capture them all at once as they descend from tree trunks to bury and pupate. It is composed of a black sheet covered with contact glue inside, a foam bar and a poly bag.