What are Whiteflies?
Small white winged sap-sucking flies that are not true flies. They resemble tiny white moths with a wingspan of 3mm. Whiteflies have become very prevalent in recent years and there are several different types which are major pests for home gardeners.
The silverleaf whitefly (Bemisia tabaci) and the greenhouse whitefly (Trialeurodes vaporariorium). If the plant is disturbed, a cloud of tiny insects fly out but they soon settle back onto the same plant. Both the adult and juvenile (nymph) whiteflies suck the juices from the plant.
Favoured plants are hibiscus, poinsettia, gerberas, herbs such as sage and mint, vegetable seedlings such as squash, melon, eggplant, cabbage and bean, tomato and broccoli.