Flupyradifurone induces transgenerational hormesis effects in the cowpea aphid, Aphis craccivora

Fouad, Eman; El-Sherif, Sherifa A. N.; Mokbel, El-Sayed Mohammad Soliman

doi:10.1007/s10646-022-02556-0

Cited by 18 publications

(19 citation statements)

References 54 publications

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“…68,69 This phenomenon is called 'hormesis', which refers to stimulation due to low concentration and inhibition due to high concentration. [70][71][72] With the onset of the concept of hormesis, the effect of mild stress on the bio-agents has also gained attention. 71 Moreover, both the lethal and sublethal insecticide concentrations that induce stress have an adaptive importance since they can persist across multiple generations either through transgenerational or multigenerational routes.…”

Section: Discussionmentioning

confidence: 99%

“…These sublethal concentrations often result in stimulating the metabolic processes and, eventually, in the organisms growth 68,69 . This phenomenon is called ‘hormesis’, which refers to stimulation due to low concentration and inhibition due to high concentration 70–72 . With the onset of the concept of hormesis, the effect of mild stress on the bio‐agents has also gained attention 71 .…”

Section: Discussionmentioning

confidence: 99%

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Functional response of an egg parasitoid,Trichogramma chilonisIshii to sublethal imidacloprid exposure

Ray

Gowda

Budhlakoti

et al. 2023

Pest Management Science

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BACKGROUNDThe effectiveness of a biological control agent depends on how well it can control pests and how compatible it is with pesticides. Therefore, we reported the multigenerational effect of a commonly used insecticide, imidacloprid, on the functional response of a widely acclaimed egg parasitoid, Trichogramma chilonis Ishii, to different densities of the host Corcyra cephalonica Stainton eggs. The study investigated the outcomes of the median lethal concentration (LC50) and sublethal concentrations (LC5, LC30), along with control treatments for five continuous generations (F1 to F5).RESULTSThe results showed that the F5 generation of LC30, both of the F1 and F5 generations of LC50, and the control all had a Type II functional response. A Type I functional response was exhibited for the F1 generation of LC30 and both generations of LC5. The attack rate on host eggs treated with LC5 and LC30 did not change (decrease) with the shift in the type of functional response as compared to the control. A significant increase in the searching efficiency (a) was observed in the later generation (F5) under the exposure of LC5 and LC30 imidacloprid concentrations. A lower handling time (Th) in both generations of the LC5 followed by LC30 treated individuals was observed when compared with the control and LC50 treatments. The per capita parasitization efficiency (1/Th) and the rate of parasitization per handling time (a/Th) were also considerably higher in both the generations of LC5 and LC30 than in the control and LC50, thereby implying positive effects of imidacloprid on the parasitization potential of T. chilonis.CONCLUSIONAltogether, these multigenerational outcomes on the functional response of T. chilonis could be leveraged to control the intractable lepidopteran pests under the mild exposure of imidacloprid in integrated pest management (IPM) programs as well as in the mass rearing of the parasitoid, T. chilonis. © 2023 Society of Chemical Industry.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Functional response of an egg parasitoid,Trichogramma chilonisIshii to sublethal imidacloprid exposure

Ray

Gowda

Budhlakoti

et al. 2023

Pest Management Science

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“…reported the transgenerational effects of 12 insecticides on Cotesia flavipes Cameron (Hymenoptera: Braconidae), whereas the exposure of immature C. flavipes to LC 50 of insecticides significantly decreased the parasitism rate at their F 1 and F 2 generations. However, several recent investigations on the sublethal effects of insecticides on aphids confirmed transgenerational hormesis 31–33 . Fouad et al 33 .…”

Section: Discussionmentioning

confidence: 99%

“…However, several recent investigations on the sublethal effects of insecticides on aphids confirmed transgenerational hormesis. [31][32][33] Fouad et al 33 found that LC 10 and LC 25 of flupyradifurone significantly increased the fecundity of the directly exposed Aphis craccivor (Koch) (Homoptera: Aphididae) adults (F 0 ); in addition, LC 25 induced hormetic effects in the progeny generation (F 1 ). In another study, LC 15 of thiamethoxam had negative effects on the fecundity of the directly exposed Aphis gossypii adults, whereas stimulatory effects were observed in the progeny generation (F 1 ).…”

Section: Discussionmentioning

confidence: 99%

“…26,28,29 In addition, the sublethal and hormetic response can produce effects that are extended beyond the current generation directly exposed to the stressors. 27,30 The transgenerational effects of insecticides mainly focus on pest species [31][32][33] ; however, attention is currently being shifted to biocontrol agents. Several studies have reported that the toxicological effects of insecticides can also transfer to the progeny of the parasitoids via the food chain of the parasitoid-host.…”

Section: Introductionmentioning

confidence: 99%

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Transgenerational hormesis and sublethal effects of five key insecticides for controlling Spodoptera frugiperda on its endoparasitoid Cotesia marginiventris

Hou,

Zang,

Lü

et al. 2023

Pest Management Science

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BACKGROUNDThe endoparasitoid Cotesia marginiventris (Cresson) is a promising biological control agent of the fall armyworm (FAW) Spodoptera frugiperda (Smith). Because the application of insecticides is one of the prime choices in pest management, we evaluated the sublethal and transgenerational effects of the five key insecticides—chlorantraniliprole, emamectin benzoate, spinetoram, Bacillus thuringiensis (Bt), and Mamestra brassicae nucleopolyhedrovirus (MbNPV)—on the parasitoid.ResultsExposure to five insecticides at a concentration causing 10% mortality (LC10) caused hormetic effects in the parent generation (F0) by increasing the parasitism and reducing the immature duration. Interestingly, the hormetic response was also observed in the offspring generation indirectly exposed to the insecticides. Furthermore, insecticides increased the parasitism rate by 6.32–14.73% in the F1 generation, which was similar to that of the F0 generation (3.96–11.81%) compared with the control. No significant adverse effect was observed on the number of emerged parasitoids of the F1 and F2 generations. However, insecticides had a detrimental impact on body size and fecundity in the F1 and F2 generations, which showed a small body size with shorter hind tibiae and a significant reduction in the female ratio compared with the control; the exception was that chlorantraniliprole significantly improved the female ratio in the F2 generation.ConclusionsFive insecticides at LC10 induced transgenerational hormetic and sublethal effects on C. marginiventris. Our results provide a scientific basis for a better understanding of the long‐term impacts of insecticides at sublethal doses on parasitoids, facilitating the development of improved integrated pest management programs for FAW control. © 2023 Society of Chemical Industry.

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The interplay between temperature and an insecticide mixture modulates the stimulatory response of sublethally exposed Myzus persicae

Silva,

Carvalho,

Haddi

2024

Ecotoxicology

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Flupyradifurone induces transgenerational hormesis effects in the cowpea aphid, Aphis craccivora

Cited by 18 publications

References 54 publications

Functional response of an egg parasitoid,Trichogramma chilonisIshii to sublethal imidacloprid exposure

Functional response of an egg parasitoid,Trichogramma chilonisIshii to sublethal imidacloprid exposure

Transgenerational hormesis and sublethal effects of five key insecticides for controlling Spodoptera frugiperda on its endoparasitoid Cotesia marginiventris

The interplay between temperature and an insecticide mixture modulates the stimulatory response of sublethally exposed Myzus persicae

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