Journal of Insect Science (2014) 14 (261), 1-7

Wen Xie, Yang Liu, Shaoli Wang, Qingjun Wu, Huipeng Pan, Xin Yang, Litao Guo and Youjun Zhang (2014)
Sensitivity of Bemisia tabaci (Hemiptera: Aleyrodidae) to several new insecticides in China: Effects of insecticide type and whitefly species, strain, and stage
Journal of Insect Science 14 (261), 1-7
Abstract: Whitefly biotypes B and Q are the two most damaging members of the Bemisia tabaci (Hemiptera: Aleyrodidae) species complex. Control of B. tabaci (and especially of Q) has been impaired by resistance to commonly used insecticides. To find new insecticides for B. tabaci management in China, we investigated the sensitivity of eggs, larvae, and adults of laboratory strains of B and Q (named Lab-B and Lab-Q) and field strains of Q to several insecticides. For eggs, larvae, and adults of B. tabaci and for six insecticides (cyantraniliprole, chlorantraniliprole, pyriproxyfen, buprofezin, acetamiprid, and thiamethoxam), LC₅₀ values were higher for Lab-Q than for Lab-B; avermectin LC₅₀ values, however, were low for adults of both Lab-Q and Lab-B. Based on the laboratory results, insecticides were selected to test against eggs, larvae, and adults of four field strains of B. tabaci Q. Although the field strains differed in their sensitivity to the insecticides, the eggs and larvae of all strains were highly sensitive to cyantraniliprole, and the adults of all strains were highly sensitive to avermectin. The eggs, larvae, and adults of B. tabaci Q were generally more resistant than those of B. tabaci B to the tested insecticides. B. tabaci Q eggs and larvae were sensitive to cyantraniliprole and pyriproxyfen, whereas B. tabaci Q adults were sensitive to avermectin. Field trials should be conducted with cyantraniliprole, pyriproxyfen, and avermectin for control of B. tabaci Q and B in China.
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Database assignments for author(s): Shaoli Wang, Qing Jun Wu

Research topic(s) for pests/diseases/weeds:
control - general
pesticide resistance of pest

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bemisia tabaci biotype MEAM1	Cabbage (Brassica oleracea)	China (NE)
	Bemisia tabaci	Cabbage (Brassica oleracea)	China (NE)
	Bemisia tabaci	Eggplant (Solanum melongena)	China (NE)
	Bemisia tabaci	Green pepper/chilli (Capsicum)	China (NE)
	Bemisia tabaci	Melon (Cucumis melo)	China (south)
	Bemisia tabaci	Euphorbia (crop)	China (NE)
	Bemisia tabaci biotype MED	Eggplant (Solanum melongena)	China (NE)
	Bemisia tabaci biotype MED	Green pepper/chilli (Capsicum)	China (NE)
	Bemisia tabaci biotype MED	Melon (Cucumis melo)	China (south)
	Bemisia tabaci biotype MED	Euphorbia (crop)	China (NE)