Begin control measures at the first sign of a whitefly infestation. One way to reduce the whitefly population on an infested plant is to wash the undersides of the leaves with a moist cloth or sponge. Unfortunately, washing is labor intensive and only practical for small plants. Insecticides are another control . Whiteflies are also prolific because their numbers increase from two to four, four becomes eight, eight becomes 16 and so on. During the hottest part of the summer, whiteflies may mature from the egg stage to an adult (ready to lay more eggs) in as few as 16 days. Whiteflies can cause two types of .
The adult whitefly female can lay hundreds of eggs on the underside of leaves, usually in a circular pattern. In hotter weather, one whitefly can even go from egg stage to grown adult in just 16 days. Since whiteflies live for a month or two, in warmer climates and in greenhouses, the reproduction cycle is almost continuous and the growth of.