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Lethal, sublethal and transgenerational effects of the novel chiral neonicotinoid pesticide cycloxaprid on demographic and behavioral traits of Aphis gossypii (Hemiptera: Aphididae)
Author(s) -
Yuan HaiBin,
Li JinHua,
Liu YongQiang,
Cui Li,
Lu YanHui,
Xu XiaoYong,
Li Zhong,
Wu KongMing,
Desneux Nicolas
Publication year - 2017
Publication title -
insect science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 45
eISSN - 1744-7917
pISSN - 1672-9609
DOI - 10.1111/1744-7917.12357
Subject(s) - aphis gossypii , biology , aphid , fecundity , aphididae , pest analysis , imidacloprid , toxicology , pesticide , population , hemiptera , neonicotinoid , botany , agronomy , homoptera , demography , sociology
Aphis gossypii Glover (Hemiptera: Aphididae) is a key pest in cotton crops, notably owing to its increasing resistance to commonly used pesticides. Such resistance prompts for the development of integrated pest management (IPM) programs that include novel pesticides being effective against the aphid. In the present study, we assessed lethal and sublethal effects of cycloxaprid, a novel chiral neonicotinoid pesticide developed in China, on A. gossypii . The lethal concentration at 50% (LC 50 ) value of cycloxaprid on A. gossypii was estimated, using the dipping method, at 7.73 mg/L. The impact of a sublethal concentration (LC 10 ) and a lethal concentration (LC 40 ) of cycloxaprid on A. gossypii population growth and feeding behavior (using electrical penetration graph technique [EPG]), and its transgenerational effect were further assessed. Adult longevity and fecundity significantly decreased after exposure to LC 40 or LC 10 of cycloxaprid. Cycloxaprid with sublethal concentrations (especially LC 40 ) had negative effects on phloem ingestion by A. gossypii . Additionally, the offspring of the adults exposed to LC 40 of cycloxaprid had shorter nymphal development duration and adult longevity than the control, and those from LC 10 and LC 40 treatments had lower adult fecundity and net productive rate. We demonstrated that cycloxaprid is a pesticide showing both lethal and sublethal activities, and transgenerational effects on A. gossypii ; it may be useful for implementation in IPM programs against this aphid pest.