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Sublethal concentrations of clothianidin affect fecundity and key demographic parameters of the chive maggot, Bradysia odoriphaga

文献类型： 外文期刊

作者： Gul, Hina 1 ; Ullah, Farman 1 ; Hafeez, Muhammad 2 ; Tariq, Kaleem 3 ; Desneux, Nicolas 4 ; Gao, Xiwu 1 ; Song, Dunlun 1 ;

作者机构： 1.China Agr Univ, Dept Entomol, Coll Plant Protect, Beijing 100193, Peoples R China

2.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Inst Plant Protect & Microbiol, Hangzhou 310021, Peoples R China

3.Abdul Wali Khan Univ Mardan, Dept Agr Entomol, Khyber Pakhtunkhwa, Pakistan

4.Univ Cote Azur, INRAE, CNRS, UMR ISA, F-06000 Nice, France

关键词： Sublethal effects; Neonicotinoids; Biological traits; Ecotoxicity; Life table

期刊名称：ECOTOXICOLOGY （ 影响因子：2.823； 五年影响因子：2.958 ）

ISSN： 0963-9292

年卷期： 2021 年 30 卷 6 期

页码：

收录情况： SCI

摘要： Bradysia odoriphaga is a major insect pest that infests Chinese chive in northern China. Clothianidin is a second-generation neonicotinoid insecticide that is commonly used against B. odoriphaga. In this study, the effect of sublethal clothianidin concentrations (LC5 and LC10) on key biological characteristics of B. odoriphaga was investigated using an age-stage, two-sex life table method. Bioassays results showed that clothianidin exhibited high toxicity against B. odoriphaga with LC50 of 1.898 mg L-1 following 24 h exposure. The developmental duration of larvae was significantly increased when exposed to the LC5 (0.209 mg L-1) and LC10 (0.340 mg L-1) of clothianidin. No significant effects were observed on the pupal stage, adult pre-oviposition period (APOP), total pre-oviposition period (TPOP), and mean longevities of male and female. The oviposition period and fecundity of B. odoriphaga were reduced in clothianidin-treated groups. Moreover, key demographic parameters, including the intrinsic rate of increase (r), finite rate of increase (lambda), and net reproductive rate (R-0), were significantly decreased by the LC5 and LC10 of clothianidin, while no effects were noted on mean generation time (T). Overall, this study showed that sublethal concentrations of clothianidin have a detrimental effect on B. odoriphaga developmental period, fecundity, and life table parameters. Therefore, clothianidin has the potential to suppress the population of B. odoriphaga even at sublethal concentrations.

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