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). Many species of plants grown under glass are liable to attack by T. vaporariorum. 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. 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. Wageningen Agricultural University Papers, 92-3, 102 pp. Life-history parameters of the greenhouse whitefly, Trialeurodes vaporariorum as a function of host plant and temperature. Host Plants: In the garden: A wide range of ornamental and edible plants On Crops: A wide range of ornamental and edible plants. “As with most insect pests they have their favorite plant species to feed on. 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. 5. The total world record of greenhouse whitefly host plants is approximately 859 species, belonging to 469 genera in 121 families. Description: The Greenhouse whitefly is a small sap-sucking insect that infests and feeds on the undersides of leaves. Adult females begin to lay eggs 2-3 days after emergence. Where Found: Throughout UK and Europe. Development from egg to adult takes 14-40 days depending upon temperature, host plant and whitefly species. of economic importance. The name whitefly is derived from the generally white, wax-like substance that coats their bodies, particularly the wings. 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). It can feed on many vegetables and ornamental plants grown in greenhouses as well as house-plants. As such this species has evolved mechanisms to circumvent the wide spectrum of anti-herbivore allelochemicals produced by its host range. Wageningen Agricultural University Papers, 92-3, 102 pp. It will feed on a broad range of host plants. Furthermore, the two viruses can be distinguished using differential molecular probes (29). 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. 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