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Greenhouse whitefly nymph. Adult. Females are capable of mating less than 24 hours after emergence and most frequently lay their eggs on the undersides of leaves. Eggs are pale yellow in colour, before turning grey prior to hatching. Newly hatched nymphs, often known as crawlers, are the only mobile immature life-stage. During the first and ...
Aleyrodes proletella, cabbage whitefly, is a pest of various Brassica crops. Bemisia tabaci, silverleaf whitefly, is a pest of many agricultural and ornamental crops. Trialeurodes vaporariorum, greenhouse whitefly, a major pest of greenhouse fruit, vegetables, and ornamentals
Whiteflies go through egg, nymph, and adult stages. You likely won’t see their teeny eggs on the undersides of leaves. Once hatched, the nymph stages are about 1/32-inch long and attach to the ...
The parasitoid is sold commercially for biological control of whitefly, an insect pest of tomato and other greenhouse crops. Encarsia formosa has been used as a natural pesticide to control whitefly populations in greenhouses since the 1920s. Use of the insect fell out of fashion due to the increased prevalence of chemical pesticides and was ...
Aleyrodidae is a large hemipteran family comprising the whiteflies. It contains the following species: [1] Aleyrodinae Westwood, 1840. Acanthaleyrodes Takahashi, 1931;
Dicyphus hesperus feeds on the mullein Verbascum thapsus and to a lesser extent on the eggplant, and can be maintained on these plants in a greenhouse as a preventative measure. As well as controlling greenhouse whitefly and silverleaf whitefly ( Bemisia tabaci ), it feeds on russet mites ( Aceria anthocoptes ), predatory mites, aphids and the ...
The host range includes the immature stages of western flower thrips, common blossom thrips, onion thrips, melon thrips and chilli thrips, as well as those of silverleaf whitefly and greenhouse whitefly. It can also consume Asian citrus psyllid, broad mites, [3] and other herbivorous mites.
An example of inoculative release occurs in the horticultural production of several crops in greenhouses. Periodic releases of the parasitoidal wasp, Encarsia formosa, are used to control greenhouse whitefly, [25] while the predatory mite Phytoseiulus persimilis is used for control of the two-spotted spider mite. [26]