title: Toxicity and sublethal effects of chlorantraniliprole on the development and fecundity of a non-specific predator, the multicolored Asian lady beetle, Harmonia axyridis (Pallas).
abstract: In order to further develop integrated pest management (IPM) approaches for controlling insect pests, it is important to estimate the effects of pesticides. In this study, the toxicity and sublethal effects of the insecticide chlorantraniliprole on a non-specific predator, the multicolored Asian lady beetle Harmonia axyridis, were evaluated and life table parameter data were analyzed statistically using the age-stage, two-sex life table procedure. The results of this study show that the development time of second and fourth instar larvae as well as pupa was significantly prolonged in populations treated with LC10 (2.42 mg (a.i.) L-1) and LC30 (12.06 mg (a.i.) L-1), while adult longevity and fecundity were both significantly reduced and the preoviposition period (POP) was significantly prolonged following treatment compared to the control. In addition, the net reproductive rate (R0), as well as the intrinsic (r) and finite rate of increase (λ) were significantly decreased in groups treated with the insecticide. These results reveal that because sublethal concentrations of chlorantraniliprole impair the population growth of H. axyridis, more attention should be paid to the use of this chemical as a component of IPM strategies.
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Nawaz
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Wanlun
authors.initials: W
authors.lastname: Cai
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Jing
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Xingmiao
authors.initials: X
authors.lastname: Zhou
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Juma Ibrahim
authors.initials: JI
authors.lastname: Mabubu
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China. Electronic address: huahongxia@mail.hzau.edu.cn.
authors.forename: Hongxia
authors.initials: H
authors.lastname: Hua
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000187:drug effects* / Q000254:growth & development; D005260:Female; D005298:Fertility / Q000187:drug effects; D007306:Insecticides / Q000494:pharmacology / Q000633:toxicity; D007814:Larva / Q000187:drug effects; D011679:Pupa / Q000187:drug effects; D012098:Reproduction / Q000187:drug effects; D062367:ortho-Aminobenzoates / Q000494:pharmacology / Q000633:toxicity*
chemical_list: D007306:Insecticides; D062367:ortho-Aminobenzoates; C517733:chlorantranilipole
keywords: Chlorantraniliprole; Harmonia axyridis (Pallas); Predator; Sublethal effects; Two-sex life table