The oval pupa is pale green to black when parasitized. The normal color, when empty, is clear-glassy with a fringe of glassy setae, and with some long glassy setae on the dorsal surface. Adults without bands across the wings. C, Crawler, D, Pupa. Pupal case without a dark area along the back.
Greenhouse whiteflies are worldwide pests of greenhouse-grown ornamentals and vegetables.
First discovered in England in 1856, they were found in the northeastern United States in 1870. Tropical Central or South America are suggested origins of the greenhouse whitefly. Greenhouse whiteflies infest a wide variety of ornamental and vegetable crops, and they can survive outdoors during the growing season, particularly in sheltered locations. Infested plants become chlorotic and unthrifty. Honeydew and sooty mold further detract from the appearance of the crop.