Journal of Economic Entomology (1996) 89, 1233-1239

Tong-Xian Liu, Philip A. Stansly and O.T. Chortyk (1996)
Insecticidal activity of natural and synthetic sugar esters against Bemisia argentifolii (Homoptera: Aleyrodidae)
Journal of Economic Entomology 89 (5), 1233-1239
Abstract: Insecticidal activities of natural sugar ester isolates of Nicotiana spp. and synthetic sugar esters were tested against Bemisia argentifolii Bellows and Perring in laboratory bioassays and a tomato field trial on staked tomato. A mixture of the pyrethroid cyfluthrin and methamidophos, as well as the juvenile analog pyriproxyfen, were used for comparison in the field trial. Mortality of adults immobilized on yellow sticky cards and sprayed to run-off (~100% coverage) with sugar ester isolates of Nicotiana spp. (including N. gossei) approached 100%. In contrast, mortality of immobilized adults treated in a Potter spray tower (~70% coverage) with the same concentrations of N. gossei was <50%. Sugar ester isolates of N. gossei, N. amplexicaulis, N. glutinosa, N. langsdorffii, N. trigonophylla, and N. palmeri and a synthetic sucrose ester were more toxic to 2nd-instar nymphs at a rate of 1 g (Al)/liter than were isolates of N. cavicola, N. simulans, N. pauciflora, N. plumbaginifolia, N. noctiflora, and N. otophora. Whitefly populations on tomato sprayed weekly in the field with a sugar ester isolate of N. trigonophylla or 4 synthetic preparations were reduced by 40-98% for irnmatures and 43-73% for adults compared with untreated plants. Sugar ester isolate and synthetic sugar esters in the field tomato trials compared favorably with commercial insecticides for whitefly control.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Tong Xian Liu, Philip A. Stansly

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bemisia tabaci biotype MEAM1	Tomato (Solanum lycopersicum)	U.S.A. (SE)