Sublethal and transgenerational effects of spinetoram on the biological traits of Plutella xylostella (L.) (Lepidoptera: Plutellidae)

Tamilselvan, R; Kennedy, J. S.; Suganthi, A.

doi:10.1007/s10646-021-02385-7

Cited by 30 publications

(18 citation statements)

References 58 publications

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“…The LC 10 and LC 30 concentrations of fluxametamide not only prolonged the fourth larval duration of F 0 of P. xylostella but also extended the larval period of F 1 progeny in a dose-dependent manner. This observation was corroborated by the previous reports on the sublethal effects of spinosad [20] or chlorantraniliprole [21] or spinetoram [23] on P. xylostella larvae. Prolongation of the larval duration in fluxametamide treatments could be attributed to retarded growth due to a reduced appetite, feeding disruption, abnormal metabolism, starvation stress, or the imbalance between metabolic Demographic traits have been recommended as a more suitable approach for examining the total effects of an active ingredient on an insect population [17,61].…”

Section: Discussionsupporting

confidence: 89%

“…The results indicate that the sublethal doses of fluxametamide can slow down the population dynamics of P. xylostella through the reduction in their reproduction and survival. Furthermore, after the sublethal exposure, the significant changes in development times and fecundity caused a decrease in the r and R 0 and resulted in a lower R f and longer T, which was identical to the results seen with of P. xylostella treated with chlorantraniliprole [21], spinetoram [23] and broflanilide [24]. The population parameters of P. xylostella, such as intrinsic rate of increase (r), finite rate of increase (λ), age-specific fecundity (m x ) and life expectancy (e xj ) were also found to be lower in the sublethal exposure of indoxacarb [64], pyriproxyfen [65] and teflubenzuron [66], and are consistent with the present findings.…”

Section: Discussionsupporting

confidence: 78%

“…Previous studies reported that fluxametamide has excellent efficacy against Musca domestica, Laodelphax striatellus, Drosophila melanogaster, Tetranichus urticae and Cylas formicarius [10,19]. On the other hand, the sublethal concentrations of various insecticides such as chlorantraniliprole, metaflumizone, fenoxycarb, spinosad, spinetoram and broflanilide significantly reduced the longevity and fecundity of P. xylostella [20][21][22][23][24]. The life-table bioassay is a precise tool to estimate the effect of sublethal exposure to an insecticide on major biological factors and demographic traits of an insect population in the laboratory [25,26].…”

Section: Introductionmentioning

confidence: 97%

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Toxicity and Sublethal Effects of Fluxametamide on the Key Biological Parameters and Life History Traits of Diamondback Moth Plutella xylostella (L.)

et al. 2022

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Fluxametamide, a novel isoxazoline insecticide, is newly registered for the control of various lepidopteran, coleopteran and thysanopteran insect pests on lethal and sublethal levels. In the present study, the toxicity and sublethal effects of fluxametamide on diamondback moth Plutella xylostella (L.), an invasive lepidopteran foliage feeder of cruciferous vegetables, were assessed to explore its bio-ecological impact on pest populations. The toxicity of fluxametamide to the third instar larvae of P. xylostella was 0.18 mg L−1 (LC50) at 72 h bioassay. After treatment with LC10 and LC30 concentrations of fluxametamide, the fourth instar larval duration, the rate of deformed pupa and adults, and the adult pre-oviposition period were significantly increased, whereas the pupation rate and pupal weight were significantly decreased in the F0 generation. In the F1 generation, sublethal effects of fluxametamide were indicated by a reduced fecundity, rate of pupation and adult emergence, pupal weight, and adult longevity, however a significant increase in eggs and total larval duration, deformed adults rate, and total longevity and pre-oviposition period was observed in the offspring. The intrinsic rate of increase (r), finite rate of increase (λ) and net reproductive rate (R0) of sublethal treatments were significantly lower than the control. The relative fitness of F1 was 0.68 and 0.64 in LC10 and LC30 treatments, respectively. The LC30 fluxametamide treatment exhibited increased glutathione S-transferase activities (elevated 1.433-fold) in P. xylostella. Our results suggest that in addition to its high lethal toxicity, the sublethal concentrations of fluxametamide might suppress the reproduction, development and survival of the P. xylostella population and its progeny, which can help to optimize integrated pest management program.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 78%

Section: Introductionmentioning

confidence: 97%

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Toxicity and Sublethal Effects of Fluxametamide on the Key Biological Parameters and Life History Traits of Diamondback Moth Plutella xylostella (L.)

et al. 2022

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“…gossypii ) [ 34 ]. Another study reported that sublethal concentrations of spinetoram significantly decreased the biological fitness of the F1 generation of Plutella xylostella (L.) (Lepidoptera: Plutellidae) [ 35 ]. These results suggest that sublethal concentrations of insecticides can affect the biological fitness of pest populations.…”

Section: Discussionmentioning

confidence: 99%

Effects of imidacloprid and thiamethoxam on the development and reproduction of the soybean aphid Aphis glycines

et al. 2021

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The soybean aphid Aphis glycines Matsumura (Hemiptera: Aphididae) is a primary pest of soybeans and poses a serious threat to soybean production. Our studies were conducted to understand the effects of different concentrations of insecticides (imidacloprid and thiamethoxam) on A. glycines and provided critical information for its effective management. Here, we found that the mean generation time and adult and total pre-nymphiposition periods of the LC50 imidacloprid- and thiamethoxam-treatment groups were significantly longer than those of the control group, although the adult pre-nymphiposition period in LC30 imidacloprid and thiamethoxam treatment groups was significantly shorter than that of the control group. Additionally, the mean fecundity per female adult, net reproductive rate, intrinsic rate of increase, and finite rate of increase of the LC30 imidacloprid-treatment group were significantly lower than those of the control group and higher than those of the LC50 imidacloprid-treatment group (P < 0.05). Moreover, both insecticides exerted stress effects on A. glycines, and specimens treated with the two insecticides at the LC50 showed a significant decrease in their growth rates relative to those treated with the insecticides at LC30. These results provide a reference for exploring the effects of imidacloprid and thiamethoxam on A. glycines population dynamics in the field and offer insight to agricultural producers on the potential of low-lethal concentrations of insecticides to stimulate insect reproduction during insecticide application.

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“…For example, Rehan & Freed (2015) studies showed sublethal effects of methoxyfenozide on S. litura such as reduced number of eggs per female, egg hatching, and sex ratio. According to Tamilselvan et al (2021), the fecundity of F 1 generation was significantly lower in groups of diamondback moth, Plutella xylostella Linneaus, 1758 (Lepidoptera, Plutellidae), treated with insecticide spinosyn at sublethal concentrations (LC 25 and LC 10 ) than the untreated control. Ali et al (2017) observed that longevity and fecundity were decreased in the first generation S. furcifera as a result of parental exposure to insecticides.…”

Section: Discussionmentioning

confidence: 99%

Biological responses in Musca domestica to fipronil and chlorfenapyr exposures

Шумилова

Sennikova

Silivanova

et al. 2021

Regul. Mech. Biosyst.

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Insect populations exist under acute and chronic exposures to lethal and sublethal insecticide concentrations. Among the sublethal effects of insecticides on insects are reductions in life span, development rates, population growth, fertility, fecundity, changes in sex ratio, deformities, changes in behaviour, feeding, searching, and oviposition. These effects may differ depending on the modes of action of insecticides, their doses, and developmental stage of application. This study evaluated the life-history parameters in Musca domestica Linnaeus, 1758 (Diptera:Muscidae) strains that were exposed to two insecticides (fipronil and chlorfenapyr) with different modes of action at sublethal concentrations in each generation up to tenth. Two approaches to each insecticide’s exposure were used in this study, particularly in one approach, only adults M. domestica were exposed to fipronil or chlorfenapyr and in another approach, only larvae were exposed to each insecticide. The susceptibility of adult flies to these insecticides was assessed by resistance ratio based on results of non-choice feeding bioassays. Fipronil exposure at the sublethal concentration in each generation did not affect the susceptibility of adult M. domestica (in the tenth generation) to fipronil. The resistance ratio values revealed tolerance to chlorfenapyr in adults of M. domestica strains that were exposed to this insecticide, independent of the approach used to insecticide exposure. Most of the life-history parameters (such as durations of separate developmental stages, the emergence duration, the adult emergence ratio, the female ratio, and the number of eggs per female per day) of the second, fourth, sixth, eighth, and tenth generations of the insecticide-exposed strains were similar to those of the control strain. At the same time, the sublethal effects of both insecticides fipronil and chlorfenapyr prolonged the larval duration (1.63–2.22 times) and the number of days from egg to adult (1.18–1.39 times) compared to the control strain. Further studies are needed to investigate a possible genetic variability in M. domestica in response to exposure of parental generation to sublethal doses of fipronil and chlorfenapyr.

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Sublethal and transgenerational effects of spinetoram on the biological traits of Plutella xylostella (L.) (Lepidoptera: Plutellidae)

Cited by 30 publications

References 58 publications

Toxicity and Sublethal Effects of Fluxametamide on the Key Biological Parameters and Life History Traits of Diamondback Moth Plutella xylostella (L.)

Toxicity and Sublethal Effects of Fluxametamide on the Key Biological Parameters and Life History Traits of Diamondback Moth Plutella xylostella (L.)

Effects of imidacloprid and thiamethoxam on the development and reproduction of the soybean aphid Aphis glycines

Biological responses in Musca domestica to fipronil and chlorfenapyr exposures

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