单词 whitefly 释义 BETA

Examples ofwhitefly

Dictionary> Examples ofwhiteflywhiteflyisn’t in the Cambridge Dictionary yet. You can help!Add a definitionAt the moment we are doing some work onwhiteflywhich communicate by singing.From theCambridge English CorpusEach sample was given a unique code number and the host plant, hostwhiteflyspecies, date, location and collector were noted.From theCambridge English CorpusAs long aswhiteflycatches are below this threshold, growers do not need to apply chemical controls.From theCambridge English CorpusSeveral earlier studies had observed that this physiological change was induced only through the feeding of juvenile whiteflies.From theCambridge English CorpusNo significant effects were observed for density of whiteflies and type of culture (single or mixed).From theCambridge English CorpusThe initial numbers of whiteflies and the type of culture (single or mixed) had no significant effect on progeny size.From theCambridge English CorpusThe interaction between biotype and initial numbers of whiteflies was also not significant.From theCambridge English CorpusEach counting area was 1 cm2 and allwhiteflyeggs and pupae within the area were counted.From theCambridge English CorpusThis will lead to the expedient selection of relevant natural enemies for a specificwhiteflytarget, allowing for 'customized control' for the first time.From theCambridge English CorpusThese sorts of delays might be particularly important in terms ofwhiteflymanagement for the following reasons.From theCambridge English CorpusAs the whiteflies recovered from anaesthesia, the leaf punches were inverted so that the whiteflies orientated normally.From theCambridge English CorpusRecently, an increasing problem has been the sudden economic impact caused by previously little-knownwhiteflyspecies becoming established in new geographical areas.From theCambridge English CorpusWe postulate that whiteflies surviving treatment continue to feed normally.From theCambridge English CorpusSome laboratory tests revealed an unexpectedly high proportion ofwhiteflypenetration, accompanied by a great variability among the samples of the same screen.From theCambridge English CorpusIn the geographical area covered by this study, whiteflies are primarily pests of vegetable crops (especially in greenhouses), citrus and ornamental plants.From theCambridge English CorpusThe great majority of whiteflies in existence today colonize only dicotyledonous angiosperms and a smaller, but significant, number feed on monocots, particularly grasses and palms.From theCambridge English CorpusWithin the mixed cages more whiteflies moved to new leaves on cucumber and bean compared to tomato plants.From theCambridge English CorpusMales were discarded and the females placed ontowhitefly-free hibiscus plants and caged securely to exclude contamination.From theCambridge English CorpusAdult whiteflies are very small insects, most measuring 1-3 mm in body length.From theCambridge English Corpus

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