Transgenerational effects of insecticides — implications for rapid pest evolution in agroecosystems

Brevik, Kristian; Lindström, Leena; McKay, Stephanie; Chen, Yolanda H.

doi:10.1016/j.cois.2017.12.007

Cited by 73 publications

(79 citation statements)

References 55 publications

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“…resistant host plants). 54 Interestingly, our data suggest that the virulent soybean aphid may have an advantage over avirulent aphid when exposed to low concentrations of lambda-cyhalothrin. This is disconcerting given the often prophylactic or calendar-based use of insecticides for managing the soybean aphid in North America.…”

Section: Discussionmentioning

confidence: 67%

“…In addition, sublethal exposure to insecticides may directly increase the selection of resistance by stimulating the expression of advantageous phenotypes, and indirectly by providing conditions that may prime the insect pest to better tolerate stressful conditions (e.g. resistant host plants) . Interestingly, our data suggest that the virulent soybean aphid may have an advantage over avirulent aphid when exposed to low concentrations of lambda‐cyhalothrin.…”

Section: Discussionmentioning

confidence: 76%

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Soybean aphid (Hemiptera: Aphididae) response to lambda‐cyhalothrin varies with its virulence status to aphid‐resistant soybean

Valmorbida

Muraro

Hodgson

et al. 2019

Pest Management Science

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BACKGROUND Soybean aphid, Aphis glycines, is an invasive insect in North America, considered one of the most important pests of soybean. Their management relies heavily on foliar insecticides, but there is growing effort to expand these tools to include aphid‐resistant varieties. We explored if the LC50 and LC25 of lambda‐cyhalothrin varied between virulent (resistant to Aphis glycines (Rag) soybeans) and avirulent (susceptible to Rag‐genes soybeans) populations of soybean aphid with a leaf‐dip bioassay. We also investigated the response to the LC25 of lambda‐cyhalothrin on adults (F0) and their progeny (F1) for both avirulent and virulent soybean aphid. RESULTS The LC50 of the virulent aphid population was significantly higher compared with the LC50 of the avirulent population. The LC25 significantly reduced fecundity of the F0 generation of avirulent soybean aphid, but no significant effect was observed for virulent aphids. In addition, the LC25 significantly shortened the adult pre‐oviposition period (APOP) and lengthened the total pre‐oviposition period (TPOP) of avirulent aphids, while the mean generation time (T) was significantly increased. For the virulent aphid, sublethal exposure significantly lengthened development time of first and third instars, TPOP, and adult longevity. In addition, all demographic parameters of virulent soybean aphid were significantly affected when they were exposed to the LC25 of lambda‐cyhalothrin. CONCLUSION Our results demonstrate lambda‐cyhalothrin is less toxic to virulent aphids and exposure to the LC25 can trigger hormesis, which may have implications for the long‐term management of this pest with this insecticide as well as with aphid‐resistant varieties of soybean. © 2019 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 67%

Section: Discussionmentioning

confidence: 76%

Soybean aphid (Hemiptera: Aphididae) response to lambda‐cyhalothrin varies with its virulence status to aphid‐resistant soybean

Valmorbida

Muraro

Hodgson

et al. 2019

Pest Management Science

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“…The fitness impairment of the F1 generation of P. cochleariae caused by parental exposure indicates potentially similar effects acting on subsequent generations ( Figure 1). A reduced investment into offspring after insecticide exposure or insecticide-induced heritable epigenetic changes in genes that are involved in detoxification pathways may be mechanisms underlying such carry-over effects (Brevik, Lindström, McKay, & Chen, 2018;Müller, Prosche, et al, 2017;Oppold & Müller, 2017).…”

Section: Discussionmentioning

confidence: 99%

Parental sublethal insecticide exposure prolongs mating response and decreases reproductive output in offspring

Müller

Römer

Müller

2019

Journal of Applied Ecology

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1. Insecticide usage is steadily increasing, implying an ongoing threat of sublethal exposure for non-target organisms in habitats close to farmland. The exposure to low insecticide doses is often associated with a fitness decline in affected organisms.2. We determined the effects of exposure to the pyrethroid lambda-cyhalothrin, at a concentration 20 times lower than the LC 50 , on the cuticle surface profile containing mating cues, the mating and aggression behaviour and fitness consequences for a beetle species (Phaedon cochleariae Fabricius), which faces agropollutants when occurring close to farmland. Traits were investigated in the insecticide-exposed parental generation, and carry-over effects into their unexposed offspring were studied.3. In both the parental and the offspring generation, the chemical surface profile was unaffected by the insecticide exposure. Nevertheless, insecticide exposure and carry-over effects decreased male mating acceptance of females in no-choice situations. A reduced acceptance of insecticide-exposed females may be related to changes in specific chemical surface cues, because males attempted to mate more readily with dummies treated with surface extracts of control females than of insecticide-exposed females. Moreover, females became more aggressive in dual-choice situations towards other females in the presence of an insecticide-exposed compared to an unexposed male, potentially due to neuronal dysfunctions.Thus, both intersexual (chemical) communication during mating and intrasexual communication were altered in response to insecticide exposure. 4. Insecticide-exposed parents and their offspring suffered from a decreased reproductive output, likely due to direct toxic effects or constraints induced by detoxification processes. The carry-over effects might be mediated by a parental insecticide transfer or insecticide-induced heritable epigenetic changes involved in detoxification processes. Synthesis and applications.This study demonstrates that sublethal insecticide exposure can have far-reaching consequences on (non-target) herbivores. These results have implications for population dynamics and, ultimately, for ecological communities, as insects are highly important members of food chains. Therefore, long-term effects of short-term insecticide exposure should be considered in the evaluation of pesticides and the discussion about pesticide usage in agriculture. | 1529Journal of Applied Ecology MÜLLER Et aL.

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“…L'utilisation de produits phytopharmaceutiques est donc largement préconisée, mais leur choix nécessite d'être en conformité avec les objectifs de développement durable, tels que définis et adoptés en 1995 par l'Organisation des Nations unies. Les composés naturels dotés d'un effet pesticide sont de plus en plus utilisés dans le cadre de stratégies de lutte intégrée 1 [4,5]. Différentes molé-Vignette (Photo © Wikimedia commons).…”

Section: L'azadirachtine Et Ses Usages En Médecine Humaineunclassified

“…Leur production et leur utilisation à grande échelle ont, par la suite, été rendues possible grâce à l'essor de la biotechnologie. Ces molécules naturelles prennent progressivement des parts plus importantes sur le marché des pesticides, comparativement aux insecticides classiques qui sont nocifs pour l'environnement [4] et connus pour leurs potentielles implications dans des affections qui se révèlent transgénérationnelles [5].…”

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L’azadirachtine, un pesticide naturel aux effets multiples

et al. 2020

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Une littérature abondante traite de l’impact négatif des pesticides conventionnels, très efficaces dans la gestion des ravageurs mais responsables d’une large pollution environnementale. Les pesticides d’origine naturelle qui auraient un moindre impact environnemental suscitent ainsi un intérêt majeur. Parmi ceux-ci, l’azadirachtine, commercialisée sous diverses formulations (huile de neem, Neem-Azal, Bioneem, etc.) reste la molécule la plus recommandée dans les agro-écosystèmes. L’argument d’une innocuité environnementale de l’azadirachtine est cependant nuancé par des effets collatéraux qui, bien que controversés, sont notables sur des organismes non ciblés.

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Transgenerational effects of insecticides — implications for rapid pest evolution in agroecosystems

Cited by 73 publications

References 55 publications

Soybean aphid (Hemiptera: Aphididae) response to lambda‐cyhalothrin varies with its virulence status to aphid‐resistant soybean

Soybean aphid (Hemiptera: Aphididae) response to lambda‐cyhalothrin varies with its virulence status to aphid‐resistant soybean

Parental sublethal insecticide exposure prolongs mating response and decreases reproductive output in offspring

L’azadirachtine, un pesticide naturel aux effets multiples

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