They are sucking insects that secrete a white wax and produce honeydew. Many different species of whitefly thrive on landscape plants and in greenhouses. Biology and Lifecycle Adult female whiteflies deposit 200 to 400 eggs in circular clusters on the undersides of leaves. Identification Correct identification of whiteflies is essential for choosing effective management methods. Whiteflies usually occur in groups on the underside of leaves.
Adults have yellowish bodies and whitish wings.
Monitoring Inspect the underside of shriveled and yellow foliage and nearby healthy leaves for whiteflies. If the plant is heavily infested, simply brushing an infested plant with one's hand will send out a white cloud of these insects. Most species prefer to feed on new plant growth. The immatures are found on the undersides of lower leaves. Whitefly species are most reliably identified by examining the late fourth immature stages.