They are caterpillars that have very volatiles and irritating bristles that can represent a danger for pets and human-being. Then, it seems necessary to treats those nests, that generally take place in height, and more often in the pines. 

Concept Drone Nature offers you a simple, fast and efficient treatment against those nests thanks to a spraying drone. This technique is ideal since it presents less danger of bite than others because the treatment is done remotely and without effort.