Onion thrips
throughout the world. It is found outdoors on many plants and particularly damaging on onions, leek, and in greenhouses on cucurbits, tomato, sweet pepper, eggplant [...] colour of the adult depends on the food source. Onion thrips (Thrips tabaci) usually pupate in the ground, although pupae can also be found on leaves, [...] and the black dots of their excreta indicate their presence in the crop. The vigour of the plant is reduced by loss of chlorophyll. When infestations become