Whiteflies
 A. M. Varela, icipe
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Adults and immature stages of the cabbage whitefly (Aleyrodes proletella).
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 M. Billah, A. M. Varela, icipe
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Adult of the greenhouse whitefly
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 A.M. Varela, icipe
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Cabbage whiteflies
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 B. Nyambo, A. A. Seif, icipe
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Whiteflies on chilli leaf. Adults are about 1mm long.
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 A. M. Varela, icipe
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Adults and eggs of the cabbage whitefly (Aleyrodes proletella).
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 A.M. Varela, icipe
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Whiteflies
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 B. Loehr, icipe
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Immature stages of the citrus woolly whitefly
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 Courtesy EcoPort (http://www.ecoport.org): S. Gassouma
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Whiteflies on citrus leaf. Adult are about 1mm long.
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 M. Billah, A. M. Varela, icipe
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Close-up of the nymphs of the greenhouse whitefly
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 A.M.Varela, icipe
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Eggs of spiralling whitefly
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 M. Billah, A. M. Varela, icipe
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Whitefly killed by fungus
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 Ian D. Bedford. Reproduced from Crop Protection Compendium, 2004 Edition. © CAB International Publishing. Wallingford, UK.
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The tobacco whitefly Bemisia tabaci adult (bottom right) about 1 mm long, beside two Trialeurodes vaporariorum adults.
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 Ian D. Bedford. Reproduced from the Crop Protection Compendium, 2004 Edition © CAB International, Wallingford, UK, 2004
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Silver leaf on squash - Bemisia tabaci - Close observation of the undersides of the leaves will show the tiny yellow/white larval scales and in severe infestations, when the plant is shaken, numerous small white adult whiteflies will flutter out and quickly resettle. These symptoms do not differ appreciably from those of Trialeurodes vaporariorum, the glasshouse whitefly, which is common throughout Europe and also occurs elsewhere.
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