Sub‐lethal responses of the large pine weevil, <i>Hylobius abietis</i>, to the pyrethroid insecticide lambda‐cyhalothrin

Rose, Daniel; Matthews, G. A.; Leather, Simon R.

doi:10.1111/j.1365-3032.2006.00525.x

Cited by 12 publications

(7 citation statements)

References 27 publications

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“…Additionally, Simões et al (2000) showed that Galleria melonella infected with S. carpocapsae had reduced silk production. Chemical insecticides also have sub-lethal effects on insects, including on H. abietis (Rose et al, 2006). However, it has not previously been investigated whether exposure of H. abietis to sublethal concentrations of EPN has behavioral effects on the insect.…”

Section: Introductionmentioning

confidence: 99%

The lethal and sub-lethal consequences of entomopathogenic nematode infestation and exposure for adult pine weevils, Hylobius abietis (Coleoptera: Curculionidae)

Girling

Ennis

Dillon

et al. 2010

Journal of Invertebrate Pathology

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a b s t r a c tEntomopathogenic nematodes (EPN) frequently kill their host within 1-2 days, and interest in EPN focuses mainly on their lethality. However, insects may take longer to die, or may fail to die despite being infected, but little is known about the effects of EPN infection on insects, other than death. Here we investigate both lethal and sub-lethal effects of infection by two EPN species, Steinernema carpocapsae and Heterorhabditis downesi, on adults of the large pine weevil, Hylobius abietis. Following 12 h nematode-weevil contact in peat, S. carpocapsae killed a significantly higher proportion of weevils (87-93%) than H. downesi (43-57%) at all concentrations tested. Less than 10% of weevils were dead within 2 days, and weevils continued to die for up to 10 days after exposure (LT 50 of 3 days or more). In a separate experiment, live weevils dissected 6 days after a 24 h exposure to nematodes on filter paper harbored encapsulated and dead nematodes, showing that weevils could defend themselves against infection. Some live weevils also harbored live nematodes 6 days after they had been removed from the nematode infested medium. Feeding by weevils was not affected by infection with, or exposure to, either species of EPN. We discuss these results in relation to the use of EPN in biological control against H. abietis.

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Section: Introductionmentioning

confidence: 99%

The lethal and sub-lethal consequences of entomopathogenic nematode infestation and exposure for adult pine weevils, Hylobius abietis (Coleoptera: Curculionidae)

Girling

Ennis

Dillon

et al. 2010

Journal of Invertebrate Pathology

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“…The antifeedant effects of sublethal λ ‐cyh were observed in other insect species as well, such as B . terrestris , Bemisia tabaci , O. excavate , and Hylobius abietis 12,14,32,33 . Meanwhile, after being transferred to non‐toxic mulberry leaves, silkworm larvae treated with λ ‐cyh LC 1 , LC 10 , and LC 20 showed varied degrees of recovery, but stunted growth persisted in the LC 50 treated group.…”

Section: Discussionmentioning

confidence: 99%

Characterization of the sublethal toxicity and transcriptome‐wide biological changes induced by λ‐cyhalothrin in Bombyx mori

Ren

Wang

et al. 2023

Environmental Toxicology

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λ‐Cyhalothrin (λ‐cyh) is widely used in agricultural production and has been reported to cause damages to numerous nontarget insects. As an important economic and model insect of Lepidoptera, Bombyx mori was extremely sensitive to λ‐cyh, and pesticide drift often leads to silkworm poisoning. However, little is known about the persistence of sublethal effects or the potential recovery from short‐term exposure to sublethal doses of pesticides. In this study, we estimated the sublethal effects caused by short‐term exposure (24 h) of λ‐cyh LC1, LC10, LC25, and LC50, respectively, and investigated the persistent negative effects on the growth, survival, and pupal metamorphosis of silkworm larvae. Silkworm growth was mostly retarded after λ‐cyh exposure, with dose‐dependent recovery observed at delayed time points. Relative to the control, the treatment groups showed significantly higher larval mortalities and abnormal pupa rates. Additionally, transcriptome sequencing was conducted to investigate the effects of λ‐cyh LC10 on the normal physiological functions in the midgut of B. mori. A total of 2697 differentially expressed genes were identified, and 57.1% of DEGs were down‐regulated. Gene ontology and Kyoto encyclopedia of genes and genomes enrichment analysis further revealed that energy and nutrient metabolisms were negatively affected. Moreover, we demonstrated that sublethal λ‐cyh inhibited the oxidative phosphorylation pathway by reducing the expression of mitochondrial electron transport chain complex genes and consequently the synthesis of ATP. This study has provided useful transcriptome‐wide expression resources to facilitate the overall knowledge of the molecular basis of sublethal toxicity caused by λ‐cyh in the midgut of B. mori.

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“…This may reduce residual exposure, because the insects avoid treated/exposed surfaces. However, insects may also increase activity if they encounter surfaces with adhered pyrethroids (Alzogaray et al 1997; Rose et al 2006; Prasifka et al 2008), which points to an increased residual uptake. For a specific risk assessment, including both residual and oral exposure, this may diminish the differences in vulnerability between species.…”

Section: Discussionmentioning

confidence: 99%

Vulnerability of Aquatic Insect Species to Insecticides, Depending on Their Flight Period and Adult Life Span

Kjær

Sørensen

Wiberg‐Larsen

et al. 2021

Environmental Toxicology and Chemistry

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Effects of insecticides on terrestrial adult life stages of otherwise aquatic insects, such as mayflies (Ephemeroptera), stoneflies (Plecoptera), and caddisflies (Trichoptera), are largely unknown. In the present study, a risk model was used to pinpoint the species most likely to experience effects due to spray drift exposure during the adult life stage. Using data from an earlier case study with lambda-cyhalothrin, 6 species with different life cycle traits were used to explore how life cycle characteristics may influence vulnerability. In addition, we performed a generic calculation of the potential effect on the terrestrial life stages of 53 species (including 47 species with unknown sensitivity). Our approach incorporated temporal and spatial distribution of both the insect and the insecticide, creating different exposure conditions among species due to variation in the relative proportion of the populations present at the time of insecticide spraying. The Ephemeroptera species represented were least vulnerable due to their extremely short adult life span and relatively short flight period. Based on their life cycle characteristics, Plecoptera and Trichoptera species were more vulnerable. These vulnerable species segregated into 2 distinct groups; one with a long adult life span to emergent period ratio and another with a high overlap between emergent period and spraying season. We therefore recommend that future ecotoxicological tests be done on species with these life cycle characteristics.

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Sub‐lethal responses of the large pine weevil, Hylobius abietis, to the pyrethroid insecticide lambda‐cyhalothrin

Cited by 12 publications

References 27 publications

The lethal and sub-lethal consequences of entomopathogenic nematode infestation and exposure for adult pine weevils, Hylobius abietis (Coleoptera: Curculionidae)

The lethal and sub-lethal consequences of entomopathogenic nematode infestation and exposure for adult pine weevils, Hylobius abietis (Coleoptera: Curculionidae)

Characterization of the sublethal toxicity and transcriptome‐wide biological changes induced by λ‐cyhalothrin in Bombyx mori

Vulnerability of Aquatic Insect Species to Insecticides, Depending on Their Flight Period and Adult Life Span

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