A sooty mold can grow on the foliage of plants from sticky honeydew excreted by whiteflies. Indoors or in greenhouses, however, whitefly control is necessary. The immature stages of the insect are inconspicuous and easily overlooked. The nymphs are translucent and do not move from their feeding area. Preventing outbreaks by not bringing infested plants inside is the best management tool.
Whiteflies are resistant to most traditional pesticides.
Infested plants in a greenhouse should be discarded. Yellow and white sticky traps placed above host plants can either monitor or help control whitefly populations. Parasitic wasps also are used as biological controls against whitefly. Some plants, however, are sensitive to soaps. Pyrethrins and related pyrethroid insecticides are the best controls for adults.