Despite its small size (0.5mm), it is a polyphagous species that causes serious damage to many species. Its life cycle of about 10 days and its large number of eggs (100-120) allow it to disperse quickly. It produces silk threads that protect it from predators and prevent photosynthesis. They form colonies on the underside of the leaves, from where they suck sap, forming chlorotic spots and defoliation in severe attacks.