Pest Status: Whiteflies can become serious pests of ornamental plants, especially in greenhouse production.
Appearance: Adults are about 1/10 to 1/16-inch long and look like tiny moths. They have four broad, delicate wings that are held roof-like over the body and are covered with a white, powdery wax.
Life Cycle: Females deposit their eggs in a circular pattern on plants. The eggs hatch within a week into flattened nymphs that wander about, sucking juices from the plant. The nymphs live for about four weeks and the adults for about one month longer.
Where to Collect: Whiteflies are usually found on the undersides of leaves and are most active during the daytime when it is warm. The delicate insects are best collected straight into a vial of alcohol to avoid excessive handling and crushing them.