![Processionary Caterpillars](https://progarein.com/wp-content/uploads/2022/10/Banniere-lutte-chenilles-processionnaires.jpg)
The highly stinging larvae of the processionary caterpillars not only cause dieback/weakening of the pines/cedars, but are also very dangerous for animals and humans. They descend in procession from January on the Atlantic coast and until the end of March/beginning of April for the more continental areas. The trap collar is the ideal weapon for blocking the processions of caterpillars that reach the ground to bury themselves.