They are known to transmit several viruses such as the tomato infectious chlorosis virus, strawberry pallidosis associated virus and beet pseudo yellow virus. There are 2 whitefly species of primary concern to greenhouse growers in Canada: the greenhouse whitefly (GWF) (Trialeurodes vaporariorum) and the silverleaf (or sweetpotato) whitefly (Bemisia argentifolii; also known as B. tabaci). As a last resort, both adult and juvenile whitefly can be controlled with organic approved Pyrethrum sprays that are available from garden product suppliers. Monitoring. The host range of T. vaporariorum is very large, which was recognized very early, as Russell (1948) listed 138 plant species as host for this whitefly. Greenhouse whitefly holds their wings out flat against their bodies and, from above, look triangular. Simply place these traps near your plants to stop whitefly in their tracks, before they get a chance to land and breed! Greenhouse whitefly . The most common whiteflies on greenhouse crops are the greenhouse whitefly (Trialeurodes vaporariorum), sweetpotato whitefly A new biotype of B. tabaci, the Q-biotype has demonstrated resistance to a number of commonly used insecticides for whiteflies including imidaclop… Whiteflies are amongst the most noxious insect pests of field and greenhouse crops worldwide, partly due to the build up of resistance against pesticides. June, 2004... William M. Wintermantel, Ph.D. Research Plant PathologistUSDA-ARS Crop Improvement and Protection UnitSalinas, CA 93905Email: wwintermantel@pw.ars.usda.govWintermantel, W.M. Host Plants: In the garden: A wide range of ornamental and edible plants On Crops: A wide range of ornamental and edible plants. Juvenile whitefly can be controlled with predatory Coccinelid beetles, predatory true-bugs such as Macrolophus and parasites such as Encarsia formosa. These tiny, white insects are notorious for the damage they inflict on host plants and are every gardener’s nightmare! The name whitefly is derived from the generally white, … 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. Currently, CABI (2017b) estimates 859 species of plants from 469 genera and 121 families on which T. vaporariorum is known to exist. Also known as Glasshouse Whitefly, In the garden: A wide range of ornamental and edible plantsOn Crops: A wide range of ornamental and edible plants. Like various other whiteflies, it is a primary insect pest of many fruit, vegetable and ornamental crops.It is frequently found in glasshouses (greenhouses), polytunnels, and other protected horticultural environments. They are pale green in colour and scale-like in appearance. Different species We have to deal with two species, namely, the greenhouse whitefly (Trialeurodes vaporariorum) and the sweet potato or silverleaf whitefly (Bemisia tabaci). It is important to note that the host range of greenhouse whitefly is quite broad and includes alfalfa, avocados, beans, cucumbers, eggplants, grapes, lettuce, melons, peas, peppers, potatoes, strawberries, tomatoes, and many ornamental crops. The greenhouse whitefly is a tropical/subtropical species that cannot overwinter outdoors in Colorado. Your email address will not be published*, What Eats Moths: The Most Common Moth Predators, How to Generate More Leads to your Pest Control Business, How to Keep Rats from Chewing Through Screens. 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. 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