Yellow and blue sticky traps are indispensable for the detection and monitoring of flying insects.

Research has shown that whiteflies, leafminers, sciarids, aphids and many other flying insects are attracted by the colour yellow. This property is harnessed in the deployment of the sticky traps. At the beginning of cultivation, the traps are hung up amongst the crop. As all kinds of flying insects are attracted by the coloured traps and stick to them, the sticky traps provide a simple, but effective monitoring system.