Furthermore, the two viruses can be distinguished using differential molecular probes (29). Glasshouse whitefly is a sap-sucking true bug that can reduces the vigour of plants and excretes a sticky, sugary substance, called honeydew, on the leaves, stems and fruits of its host plants. If cyanide poisoning is responsible for reduced feeding and mortality of non-cassava whitefly, the corollary is that cassava whiteflies must have detoxification mechanisms that enable them to feed on cassava as well as a broad range of other host plants (Sseruwagi et al., 2006). Where Found: Throughout UK and Europe. But there are certain crops that they are more prone to infesting, such as hibiscus, lantana and poinsettia, etc. The glasshouse whitefly, Trialeurodes vaporariorum, is a damaging crop pest and an invasive generalist capable of feeding on a broad range of host plants. The total world record of greenhouse whitefly host plants is approximately 859 species, belonging to 469 genera in 121 families. The greenhouse whitefly is a common pest of houseplants and greenhouse plants. It can feed on many vegetables and ornamental plants grown in greenhouses as well as house-plants. Wageningen Agricultural University Papers, 92-3, 102 pp. The greenhouse whitefly has a large host range including avocados, beans, blackberries and other berries, cucumbers, eggplants, lettuce, melons, peas, peppers, tomatoes, and many ornamentals, and these alternate hosts serve as sources for whiteflies that enter strawberry fields. Most whitefly species have a narrow range of host plants, but the ones that are considered pests may feed on and damage many vegetable and field crops, greenhouse and nursery crops and house plants. The name whitefly is derived from the generally white, wax-like substance that coats their bodies, particularly the wings. Description: The Greenhouse whitefly is a small sap-sucking insect that infests and feeds on the undersides of leaves. 5. Greenhouse whitefly adults are more active at temperatures of 75F while sweet potato whitefly B-biotype adults are more active at temperatures greater than 80F. Life-history parameters of the greenhouse whitefly, Trialeurodes vaporariorum as a function of host plant and temperature. Many species of plants grown under glass are liable to attack by T. vaporariorum. As such this species has evolved mechanisms to circumvent the wide spectrum of anti-herbivore allelochemicals produced by its host range. Adult females begin to lay eggs 2-3 days after emergence. Similar to the B-biotype whitefly, Q-biotypes are not picky about which plants they choose. It will feed on a broad range of host plants. Development from egg to adult takes 14-40 days depending upon temperature, host plant and whitefly species. of economic importance. Adult whiteflies are white and fly in a weak, random manor. Host Plants: In the garden: A wide range of ornamental and edible plants On Crops: A wide range of ornamental and edible plants. Wageningen Agricultural University Papers, 92-3, 102 pp. “As with most insect pests they have their favorite plant species to feed on. This insect has a host range of more than 250 ornamental and vegetable plants, including the poinsettia, begonia, hibiscus, aster, cucumber, tomato, grape and bean. sively by the greenhouse whitefly (Trialeu-rodes vaporariorum Westwood), ToCV can be transmitted by T. vaporariorum and also by the banded wing whitefly (T. abutilonea Haldeman) and Bemisia tabaci (Genna-dius) biotypes A and B (4,5). That infests and feeds on the greenhouse whitefly host range of leaves not picky about which plants they choose temperatures 75F! Record of greenhouse whitefly, Q-biotypes are not picky about which plants they choose feed many. 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