Transgenerational sublethal effects of abamectin and pyridaben on demographic traits of Phytonemus pallidus (Banks) (Acari: Tarsonemidae)

Hedayati, Mozhgan; Sadeghi, Amin; Maroufpoor, Mostafa; Ghobari, Hamed; Güncan, Ali

doi:10.1007/s10646-019-02040-2

Cited by 8 publications

(6 citation statements)

References 65 publications

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“…Similarly, there were significantly negative effects on the r and ⊗ parameters of offspring after parents were treated by abamectin and pyridaben in P. pallidus. 62 Also, this result is consistent with other cases in insects, where imidacloprid, thiamethoxam, and cycloxaprid influenced the r and ⊗ in offspring (F 1 ) of Coccinella septempunctata. 63,64 Moreover, sublethal concentrations of thiamethoxam markedly decreased the values of r, ⊗, and R 0 of H. variegate.…”

Section: Discussionsupporting

confidence: 90%

“…In Phytonemus pallidus (Banks) (Acari: Tarsonemidae), the m x , l x m x and v xj parameters of F 1 generation were also reduced after parental population were treated by LC 15 of abamectin and pyridaben. 62 In insects, similar differences were also observed between LC 20 nitenpyram treatment and controls in nitenpyram-susceptible and resistant strains of N. lugens. 19 In addition, LC 30 pyridaben exposure suppressed P. citri populations by decreasing the population parameters r and ⊗ of the Pyr_-Control strain.…”

Section: Discussionmentioning

confidence: 59%

“…In contrast, lower values of these parameters were observed in treatments than in control for susceptible P. citri strain. In Phytonemus pallidus (Banks) (Acari:Tarsonemidae), the m x , l x m x and v xj parameters of F 1 generation were also reduced after parental population were treated by LC 15 of abamectin and pyridaben 62 . In insects, similar differences were also observed between LC 20 nitenpyram treatment and controls in nitenpyram‐susceptible and resistant strains of N. lugens 19 …”

Section: Discussionmentioning

confidence: 77%

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Sublethal and transgenerational effects of pyridaben exposure on the fitness and gene expression of Panonychus citri

Deng

Xia

Luo

et al. 2023

Pest Management Science

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BACKGROUND Panonychus citri is a globally dominant citrus plant pest mite. Pesticide‐induced population resurgence is a concern for mite control. Exposure to sublethal concentrations of pesticides has stimulated reproduction and outbreak risks in many pests. Pyridaben, a mitochondrial electron transport inhibitor, has been frequently used worldwide in mite control. In the study, sublethal and transgenerational effects of pyridaben exposure on Pyr_Rs (resistant) and Pyr_Control (susceptible) strains were systematically investigated in both exposed parental generation (F0) and unexposed offspring generations (F1 and F2) by evaluating life‐table and physiological parameters. RESULTS After exposure to pyridaben, the fecundity of both strains was significantly reduced in F0 generation while significantly induced in F1 generation. Interestingly, these effects also stimulated the fecundity of the F2 generation in Pyr_Control strain while no significant effects occurred for Pyr_Rs strain. The intrinsic rate of increase (r) and finite rate of increase (λ) were significantly decreased only in F1 generation of Pyr_Control strain after exposure treatment. Meanwhile, the population projection indicated a smaller population size in F1 generation of Pyr_Control strain while a population increase for Pyr_Rs strain after sublethal treatment. Subsequent detoxification enzyme assays indicated that only P450 activities in F0 generation were significantly activated by LC30 exposure to pyridaben in both strains. Significant downregulation of reproduction‐related (Pc_Vg) genes was observed in the F0 generations of both strains. Significant upregulation of P450 (CYP4CL2) and Pc_Vg of the F1 generation in both strains suggested the presence of delayed hormesis effects on the reproduction and developed tolerance to pyridaben, although the effects did not last over a longer period (F2 generation). CONCLUSION These results provide evidence for transgenerational hormesis effects of low concentrations of pyridaben exposure that may lead to population increase and resurgence risks of resistant‐mites in natural settings by stimulating reproduction. © 2023 Society of Chemical Industry.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 59%

Section: Discussionmentioning

confidence: 77%

See 1 more Smart Citation

Sublethal and transgenerational effects of pyridaben exposure on the fitness and gene expression of Panonychus citri

Deng

Xia

Luo

et al. 2023

Pest Management Science

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“…In this study, sublethal concentrations of EMB significantly increased the mortality rates of pupae and pre-adults; reduced the larval and pre-adult stage development times, longevity of male, oviposition period, and fecundity of FAW; and prolonged pupal periods. Similarly, these transgenerational sublethal effects of Abamectin and EMB were found in Tetranychus urticae Koch, P. plumifer, Phytonemus pallidus (Banks), T. absoluta, and S. longicornis, when the parental generation exposed to low lethal concentrations [39][40][41][42]49]. Some hypotheses sought to explain this phenomenon in the offspring generation.…”

Section: Sublethal Effects Of Emb On the Performance Of The Faw Offsp...mentioning

confidence: 88%

“…Sublethal concentrations of pesticides could significantly influence arthropod longevity [18,42]. LC 30 values of EMB significantly reduced the longevity of H. armigera female and male [43].…”

Section: Effect Of Emb On the Performance Of Faw Parental Generationmentioning

confidence: 99%

Sublethal Effects of Emamectin Benzoate on Fall Armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae)

Liu

Tan

et al. 2022

Agriculture

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Fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae), is a highly invasive polyphagous pest that causes great economic losses to agricultural production. Emamectin benzoate (EMB) is one of the most popular biopesticides with high antipest, anti-parasitic and anti-nematode activities and low toxicity. The present study was conducted to determine the lethality of EMB to FAW for 24 h. Sublethal effects of EMB on FAW parental and offspring generations were also assessed. LC10, LC20 and LC50 EMB for 24 h on FAW third instar larvae were 0.0127 mg/L, 0.0589 mg/L, and 0.1062 mg/L, respectively. A low dose of sublethal concentrations of EMB could significantly influence the life cycle of FAW parental and offspring generations. Sublethal concentration (LC20) of EMB significantly prolonged the pupal period of male and increased the pupal weight of male but not of female, and significantly delayed the oviposition period and longevity of adult FAW. In the FAW offspring generation, sublethal concentrations significantly increased the mortality of offspring pupae and pre-adults, and reduced the development time of offspring larvae and pre-adult male and female. Sublethal concentrations (LC10 and LC20) of EMB significantly decreased the FAW oviposition period. However, only LC10 significantly reduced FAW F1 female fecundity. No significant difference was found in the intrinsic rates of natural increase (rm), finite rate of population increase (λ), and net reproductive rate (R0) of FAW offspring exposed to sublethal concentrations. This is the first study to determine the sublethal concentrations of EMB on the life table parameters of two FAW generations. These findings can provide important implications for the rational utilization of FAW insecticides.

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Transovarial toxicity matters: lethal and sublethal effects of hexythiazox on the two-spotted spider mite (Acari: Tetranychidae)

et al. 2022

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Transgenerational sublethal effects of abamectin and pyridaben on demographic traits of Phytonemus pallidus (Banks) (Acari: Tarsonemidae)

Cited by 8 publications

References 65 publications

Sublethal and transgenerational effects of pyridaben exposure on the fitness and gene expression of Panonychus citri

Sublethal and transgenerational effects of pyridaben exposure on the fitness and gene expression of Panonychus citri

Sublethal Effects of Emamectin Benzoate on Fall Armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae)

Transovarial toxicity matters: lethal and sublethal effects of hexythiazox on the two-spotted spider mite (Acari: Tetranychidae)

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