The rubber strings chase the insects from the plants causing them to fly straight into the sticky catch strips. That is the simple explanation for a video that shows Horiver 40x25 cm sticky traps attached to an automatic spray boom to catch thrips and whitefly. The Dutch company, Vos Capelle, shared the clip on LinkedIn to show that when the insects are caught in this way, they cannot reproduce. Thus, they say there is a reduced infestation risk without much effort.