Lethal and Sublethal Effects of Clothianidin on the Development and Reproduction of Bemisia tabaci (Hemiptera: Aleyrodidae) MED and MEAM1

Abstract The Bemisia tabaci (Gennadius) cryptic species complex includes important crop pests, and among them, the cryptic species Mediterranean (MED) and Middle East-Asia Minor 1 (MEAM1) cause substantial crop losses in China. The second-generation neonicotinoid clothianidin acts as an agonist of t...

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Bibliographic Details
Published in:Journal of insect science (Tucson, Ariz.) Ariz.), 2018-03, Vol.18 (2)
Main Authors: Fang, Yong, Wang, Jinda, Luo, Chen, Wang, Ran
Format: Article
Language:English
Subjects:
Animals
Female
Fertility - drug effects
Guanidines - toxicity
Hemiptera - drug effects
Hemiptera - growth & development
Insecticides - toxicity
Male
Neonicotinoids - toxicity
Oviposition - drug effects
Thiazoles - toxicity
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Summary:Abstract The Bemisia tabaci (Gennadius) cryptic species complex includes important crop pests, and among them, the cryptic species Mediterranean (MED) and Middle East-Asia Minor 1 (MEAM1) cause substantial crop losses in China. The second-generation neonicotinoid clothianidin acts as an agonist of the nicotinic acetylcholine receptor in the insect nervous system and has both stomach and contact activity. In this study, the toxicity of clothianidin and five other insecticides to MED and MEAM1 was examined. The sublethal effects of clothianidin on the development and reproduction of MED and MEAM1 were also investigated. Among the six insecticides tested, clothianidin showed toxicities to both MED and MEAM1 adults with LC50 values of 5.23 and 5.18 mg/liter, respectively. The sublethal effects of clothianidin were assessed by treating MED and MEAM1 adults with the LC25 of 1.58 and 1.13 mg/liter, respectively. The LC25 treatments accelerated the development of the F1 generation but reduced survival and fecundity of both species. Our results indicate that clothianidin could be useful for the management of B. tabaci MED and MEAM1.
ISSN:1536-2442
1536-2442
DOI:10.1093/jisesa/iey025