Sublethal effects of larval exposure to indoxacarb on reproductive activities of the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae)

Wang, Guangli; Huang, Xiaoling; Wei, Hongyi; Fadamiro, Henry Y.

doi:10.1016/j.pestbp.2011.09.010

Cited by 23 publications

(14 citation statements)

References 26 publications

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“…Our results were also consistent with those in adult moths treated with pesticides such as O.furnacalis dosed with deltamethrin [18], P.gossypiella dosed with permethrin [12] and T.ni dosed with cypermethrin [17]. However, the percentage of peak calling in the P.xylostella female survivors with indoxacarb treatment was higher than that of control females [23]. Higher calling percent implied that females had a higher sex pheromone emitting rate.…”

Section: Discussionsupporting

confidence: 89%

“…Male moths of H.armigera treated with Bt from the third larval instars showed higher EAG responses to sex pheromones than controls [21], as did tebufenozide and abamectin resistant diamondback ( Plutella xylostella ) male moths [22]. However, P. xylostella moths elicited similar EAG responses after exposure to indoxacarb compared with controls [23].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Larvae Treated with Mixed Biopesticide Bacillus thuringiensis - Abamectin on Sex Pheromone Communication System in Cotton Bollworm, Helicoverpa armigera

Shen

Chen

et al. 2013

PLoS ONE

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Third instar larvae of the cotton bollworm (Helicoverpa armigera) were reared with artificial diet containing a Bacillus thuringiensis - abamectin (BtA) biopesticide mixture that resulted in 20% mortality (LD20). The adult male survivors from larvae treated with BtA exhibited a higher percentage of “orientation” than control males but lower percentages of “approaching” and “landing” in wind tunnel bioassays. Adult female survivors from larvae treated with BtA produced higher sex pheromone titers and displayed a lower calling percentage than control females. The ratio of Z-11-hexadecenal (Z11–16:Ald) and Z-9-hexadecenal (Z9–16:Ald) in BtA-treated females changed and coefficients of variation (CV) of Z11–16:Ald and Z9–16:Ald were expanded compared to control females. The peak circadian calling time of BtA-treated females occurred later than that of control females. In mating choice experiment, both control males and BtA-treated males preferred to mate with control females and a portion of the Bt-A treated males did not mate whereas all control males did. Our Data support that treatment of larvae with BtA had an effect on the sex pheromone communication system in surviving H.armigera moths that may contribute to assortative mating.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Effect of Larvae Treated with Mixed Biopesticide Bacillus thuringiensis - Abamectin on Sex Pheromone Communication System in Cotton Bollworm, Helicoverpa armigera

Shen

Chen

et al. 2013

PLoS ONE

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“…However, Bt formulations had long acting effects, and this action gave chance to enhance their latent effects. In contrast, in some other studies, it was found that sub-lethal concentrations of indoxacarb (Wang et al 2011) on P. xylostella inhibited insect development. In the present study, the highest reduction percentage in the development of T. absoluta including larval and pupal durations, pupal mortality, pupation%, and emergence% occurred in case of using Lepinox or Dipel 2× formulation of Bt.…”

Section: Latent Effect On Fecundity and Fertilitymentioning

confidence: 57%

Lethal and sub-lethal effects of bio-and chemical insecticides on the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

Kandil

Abdel-kerim

Moustafa

2020

Egypt J Biol Pest Control

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The tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), is a destructive pest affecting the tomato crop causing a loss of 60-100% of the tomato crop production. In the present study, the lethal and sub-lethal effects of Bacillus thuringiensis (Bt), spinosad, and emamectin benzoate as bio-insecticides comparing with 2 synthetic insecticides: chlorpyrifos and indoxacarb against T. absoluta under laboratory conditions were evaluated. Take in consideration, life tables and reproductive parameters of treated larvae with LC 30 for each pesticide (bioand chemical insecticides) by using leaf dipping technique were calculated. The results showed that Lepinox formulation of Bt was the most effective one against the early 2nd instar larvae with 0.01 × 10 −2 mg/l (ppm), followed by spinosad with 0.07 × 10 −2 ppm comparing to indoxacarb and chlorpyrifos (0.01 and 11.44 μg/ml, respectively). Sub-lethal effect of the Bt formulations significantly increased pupal mortality by 29.77, 33.30, and 26.94% for Lepinox, Dipel 2×, and Protecto, respectively. In addition to their efficiency, Bt formulations and emamectin benzoate increased larval developmental period and reduced adult emergency percentage to 70.28, 66.70, 73.06, and 75.55% for Lepinox, Dipel 2×, Protecto, and emamectin benzoate, respectively. All bio-insecticides including Bt, spinosad, and emamectin benzoate caused abnormalities in different life stages. The results suggest these bio-insecticides are promising alternatives to synthetic insecticides for T. absoluta management.

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“…When considering the reproductive and olfactory abilities of insects, the impacts of sublethal concentrations of insecticides were usually reported to be negative for their fitness [52][53][54][55]. However, studies had also reported the absence of these negative impacts, and in less common circumstances, the occurrence of beneficial effects for the insect's fitness [56][57][58][59][60], the latter which is termed 'hormetic effect', and are usually but not exclusively related to pyrethroids [61,62].…”

Section: Sublethal Exposure Of Adults To Insecticidesmentioning

confidence: 99%

Implications of Sublethal Insecticide Exposure and the Development of Resistance on Mosquito Physiology, Behavior, and Pathogen Transmission

Andreazza

Oliveira

Martins

2021

Insects

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For many decades, insecticides have been used to control mosquito populations in their larval and adult stages. Although changes in the population genetics, physiology, and behavior of mosquitoes exposed to lethal and sublethal doses of insecticides are expected, the relationships between these changes and their abilities to transmit pathogens remain unclear. Thus, we conducted a comprehensive review on the sublethal effects of insecticides and their contributions to insecticide resistance in mosquitoes, with the main focus on pyrethroids. We discuss the direct and acute effects of sublethal concentrations on individuals and populations, the changes in population genetics caused by the selection for resistance after insecticide exposure, and the major mechanisms underlying such resistance. Sublethal exposures negatively impact the individual’s performance by affecting their physiology and behavior and leaving them at a disadvantage when compared to unexposed organisms. How these sublethal effects could change mosquito population sizes and diversity so that pathogen transmission risks can be affected is less clear. Furthermore, despite the beneficial and acute aspects of lethality, exposure to higher insecticide concentrations clearly impacts the population genetics by selecting resistant individuals, which may bring further and complex interactions for mosquitoes, vertebrate hosts, and pathogens. Finally, we raise several hypotheses concerning how the here revised impacts of insecticides on mosquitoes could interplay with vector-mediated pathogens’ transmission.

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Sublethal effects of larval exposure to indoxacarb on reproductive activities of the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae)

Cited by 23 publications

References 26 publications

Effect of Larvae Treated with Mixed Biopesticide Bacillus thuringiensis - Abamectin on Sex Pheromone Communication System in Cotton Bollworm, Helicoverpa armigera

Effect of Larvae Treated with Mixed Biopesticide Bacillus thuringiensis - Abamectin on Sex Pheromone Communication System in Cotton Bollworm, Helicoverpa armigera

Lethal and sub-lethal effects of bio-and chemical insecticides on the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

Implications of Sublethal Insecticide Exposure and the Development of Resistance on Mosquito Physiology, Behavior, and Pathogen Transmission

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