Lethal impacts of insecticides and miticides on three agriculturally important aphid parasitoids

Overton, Kathy; Ward, Samantha E.; Hoffmann, Ary A.; Umina, Paul A

doi:10.1016/j.biocontrol.2022.105143

Cited by 8 publications

(25 citation statements)

References 72 publications

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“…Flonicamid, afidopyropen, cyantraniliprole and chlorantraniliprole also had no observable impact on O. lapidaria, consistent with impacts on a diverse array of beneficial species that contribute to biological control, including aphid parasitoids (Overton et al, 2023) and other natural enemies (summarised by Knapp et al, 2023B). Based on our findings, these active ingredients show promise for IPM strategies and are likely to be highly compatible with conservation biological control efforts involving naturally-occurring beneficials such as Bdellidae.…”

Section: Discussionmentioning

confidence: 55%

“…This study provides standardised pesticide toxicity data for two species of mites from the Bdellidae family in keeping with previous work (e.g. Overton et al, 2023) and standardised IOBC benchmarks (Sterk et al, 1999). To the best of our understanding, this represents the first comprehensive study of pesticide impacts on Bdellidae, with most previously available information on predatory mites from the commercially valuable Phytoseiidae family (Biobest, 2019; Bostanian, 1985, 2006; Choi, 2003; Cote, 2002; Cuthberson, 2012; Duso, 1992; Kaplan et al, 2012; Kim, 2005; Kishimoto, 2018; Zhang, 1990).…”

Section: Discussionmentioning

confidence: 82%

“…This model only included the high rate and 48-HAT data, in order to make comparisons with previous studies benchmarked against current IOBC standards (Roberts et al, 1999), as well as ongoing work on a wider range of beneficial invertebrates (Mata et al, unpubl. data; Overton et al, 2023; Umina et al, 2023).…”

Section: Methodsmentioning

confidence: 98%

“…In all bioassays, snout mites were exposed to dried pesticide spray residues in line with International Organisation for Biological Control (IOBC) protocols (Sterk et al, 1999) and previous work (Overton et al, 2023). A Potter Spray Tower (Burkard Manufacturing, Rickmansworth, United Kingdom) was used to coat 35 mm petri dish bases with even and consistent spray deposits of 1 mg/cm 2 , equivalent to a field application rate of 100 L/ha of diluted pesticide.…”

Section: Methodsmentioning

confidence: 99%

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Acute toxicity effects of pesticides on predatory snout mites (family Bdellidae)

Knapp,

Mata,

McDougall

et al. 2023

Preprint

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Predatory mites biologically control a range of arthropod crop pests and are often central to agricultural IPM strategies globally. Conflict between chemical and biological pest control has prompted increasing interest in selective pesticides with fewer off-target impacts on beneficial invertebrates, including predatory mites. However, the range of predatory mite species included in standardised pesticide toxicity assessments does not match the diversity of naturally-occurring species contributing to biocontrol, with most testing carried out on species from the family Phytoseiidae. Here, we aim to bridge this knowledge gap by investigating the impacts of 22 agricultural pesticides on the predatory snout mite Odontoscirus lapidaria (Kramer) (family Bdellidae). Using internationally standardised testing methodologies, we identified several active ingredients with minimal impact on O. lapidaria mortality, including Bacillus thuringiensis, nuclear polyhedrosis virus, flonicamid, afidopyropen, chlorantraniliprole and cyantraniliprole, which may therefore be good candidates for IPM strategies utilising both chemical and biological control. Importantly, we reveal differences between Bdellidae and Phytoseiidae in responses to a number of chemicals, including the miticides diafenthiuron and abamectin, highlighting the risk of making generalisations around acute toxicity based on tests with one beneficial mite family. We also explored the impacts of several pesticides on a second Bdellidae species and found differences in the response to chlorpyrifos compared with O. lapidaria, further highlighting the taxon-specific nature of non-target toxicity effects.

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Section: Discussionmentioning

confidence: 55%

Section: Discussionmentioning

confidence: 82%

Section: Methodsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Acute toxicity effects of pesticides on predatory snout mites (family Bdellidae)

Knapp,

Mata,

McDougall

et al. 2023

Preprint

Self Cite

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“…However, afidopyropen might be useful in combination with other management tools. Because it is relatively nontoxic to natural enemies such as coccinellids ( Harmonia axyridis , Adalia bipunctata ), minute pirate bugs ( Orius insidiosus , O. strigicollis ), parasitoid wasps ( Aphelinus certus , A. abdominalis , Aphidius colemani , Diaretiella rapae ), green lacewings ( Chrysoperla carnea ), and wolf spiders ( Pardosa astrigera ) among others (Joseph 2020, Koch et al 2020, Horikoshi et al 2022, Overton et al 2022), afidopyropen may be compatible with biological control methods of aphid suppression. This should be investigated with greenhouse and/or field assays in potatoes.…”

Section: Resultsmentioning

confidence: 99%

Afidopyropen as a potential tool for Potato leafroll virus management in post-neonicotinoid potato production

Angelella

Waters

2023

Journal of Economic Entomology

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Potato leafroll virus (PLRV) has been well managed by neonicotinoids since their widespread adoption in the United States, becoming virtually absent from seed and production fields in the Northwest. However, with increasing interest in discontinuing neonicotinoid usage, there is concern that PLRV could enjoy a resurgence in the absence of effective alternative chemistries. We tested the effects of afidopyropen, an insecticide with novel mode of action, on PLRV transmission and the feeding/probing behavior of its primary vector, the green peach aphid (Myzus persicae [Sulzer]). Afidopyropen foliar sprays decreased PLRV transmission by individual green peach aphids relative to water controls: PLRV acquisition from treated potato plants and subsequent transmission was reduced by 89%, and PLRV inoculation by viruliferous aphids to treated potato plants was reduced by 35%. Although electropenetrograph analyses following 4-h recordings of individual aphids on potato plants showed decreases in the total and mean duration of phloem feeding (E) on plants subject to an afidopyropen treatment relative to water, these only trended toward significance. Taken together, these results suggest treatment with afidopyropen can decrease PLRV transmission in potatoes, but that significant changes in feeding/probing might not occur quickly post-exposure. Overall, while the reductions in transmission were not as dramatic as have been observed following neonicotinoid treatments, afidopyropen may be a useful alternative and should be evaluated in field experiments.

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Harmonising control: understanding the complex impact of pesticides on parasitoid wasps for enhanced pest management

Theenoor,

Ghosh,

Venkatesan

2024

Current Opinion in Insect Science

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Lethal impacts of insecticides and miticides on three agriculturally important aphid parasitoids

Cited by 8 publications

References 72 publications

Acute toxicity effects of pesticides on predatory snout mites (family Bdellidae)

Acute toxicity effects of pesticides on predatory snout mites (family Bdellidae)

Afidopyropen as a potential tool for Potato leafroll virus management in post-neonicotinoid potato production

Harmonising control: understanding the complex impact of pesticides on parasitoid wasps for enhanced pest management

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