On the perception of leaf morphology and visible light by Tetranychus urticae Koch (Acariformes, Tetranychidae)

The two-spotted spider mite Tetranychus urticae is one of the most polyphagous and damaging pests worldwide. behaviour differs on its various host plants this could influence crop defence strategies. We investigated perception leaf morphology by T. in relation to effects visible light selection sites which females prefer live feed. Mite chose shaded surface when smooth glabrous lemon leaves were offered as a for living feeding, showing photophobic behaviour. However, they clearly preferred abaxial bean regardless presence or absence light. As no differences found regarding food quality between adaxial surfaces, seems be related firstly secondly regards first factor, prefers with complicated architecture, i.e. veins relief, can easily build their dense web, factor has priority comparison negative effect radiations. second important leaves, these being unsuitable building characteristic webs urticae.