? Selectivity and sublethal effects of some frequently-used biopesticides on the predator <em>Cyrtorhinus lividipennis</em> Reuter (Hemiptera: Miridae)
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    2019, Vol. 18 Issue (01): 124-133     DOI: 10.1016/S2095-3119(17)61845-8
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Selectivity and sublethal effects of some frequently-used biopesticides on the predator Cyrtorhinus lividipennis Reuter (Hemiptera: Miridae)
DAI Wei, LI Yao, ZHU Jun, GE Lin-quan, YANG Guo-qing, LIU Fang
College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, P.R.China
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Abstract 
The green miridbug, Cyrtorhinus lividipennis, is an important predator of the rice brown planthopper, Nilaparvata lugens.  In this study, the selective toxicity of seven commercial biopesticides for C. lividipennis was examined under laboratory conditions; abamectin was the most selective to C. lividipennis, followed by matrine and azadirachtin.  Veratridine, rotenone, Bacillus thuringiensis and Beauveria bassiana showed less selectivity for C. lividipennis.  Subsequently, matrine, abamectin and azadirachtin were selected for sublethal assessments with respect to C. lividipennis due to their high toxicities to N. lugens C. lividipennis treated with sublethal concentrations (LC10 and LC20) of the three biopesticides could distinguish volatiles released from healthy and N. lugens-infested plants indicating that the biopesticides tested did not affect the foraging ability of surviving miridbugs.  Azadirachtin decreased the consumption capability of C. lividipennis when the densities of N. lugens were 20, 30, 40 and 50 insects per vial.  Sublethal concentration treatment did not impact the pre-oviposition period or egg hatchability of C. lividipennis.  However, the fecundity of C. lividipennis exposed to azadirachtin and abamectin increased by 27–41% compared to the untreated individuals.  In summary, abamectin or matrine together with C. lividipennis could be considered an effective, sustainable pest management strategy for rice.
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Articles by authors
DAI Wei
LI Yao
ZHU Jun
GE Lin-quan
YANG Guo-qing
LIU Fang
Key words biopesticides     Cyrtorhinus lividipennis    selective toxicity     sublethal effects     
Received: 2017-10-13; Accepted: 2017-11-27
Fund: This research was ?nancially supported by the Jiangsu Agricultural Scienti?c Self-innovation Fund, China (CX(15)1057), the Fund of Science and Technology of Jiangsu Province, China (BE2015342) and the National Key Research and Development Program of China (2017YFD0200400 and 2016YFD0300706).
Corresponding Authors: Correspondence LIU Fang, Mobile: +86-13815802333, E-mail: liufang@yzu.edu.cn    
About author: DAI Wei, Mobile: +86-18852727270, E-mail: 59004786@qq.com;
Cite this article:   
DAI Wei, LI Yao, ZHU Jun, GE Lin-quan, YANG Guo-qing, LIU Fang. 2019. Selectivity and sublethal effects of some frequently-used biopesticides on the predator Cyrtorhinus lividipennis Reuter (Hemiptera: Miridae). Journal of Integrative Agriculture, 18(01): 124-133.
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http://www.chinaagrisci.com/Jwk_zgnykxen/EN/ 10.1016/S2095-3119(17)61845-8      or     http://www.chinaagrisci.com/Jwk_zgnykxen/EN/Y2019/V18/I01/124
 
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[1] PEI Guo-liang, GUO Jun, WANG Qin-hu, KANG Zhen-sheng . Comparative analysis of protein kinases and associated domains between Ascomycota and Basidiomycota[J]. Journal of Integrative Agriculture, 2019, 18(01): 96-107.
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