Whiteflies in the Greenhouse | Entomology
Figure 1. Lifecycle of the sweetpotato whitefly, entirely on the undersides of leaves. Development times in the figure are for 77°F on a preferred host plant species. Each stage will be longer at colder temperatures, or on a less preferred crop. Adults, eggs, and young nymphs are usually found on fresh newly expanded leaves, whereas older nymphs and exuviae are found on more mature foliage.