Combined nutritional stress and a new systemic pesticide (flupyradifurone, Sivanto®) reduce bee survival, food consumption, flight success, and thermoregulation

Tong, Linda; Nieh, James C.; Tosi, Simone

doi:10.1016/j.chemosphere.2019.124408

Cited by 77 publications

(62 citation statements)

References 59 publications

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“…sucrose solution in an incubator (Tong et al, 2019). However, there were no effects of FPF on the average unloading wait time, the number of dance bouts per next visit, or the average number of dance circuits performed per dance bout.…”

Section: Discussionmentioning

confidence: 82%

“…FPF also has multiple behavioral effects. It can impair bee flight ability (Tong et al, 2019), increase abnormal behaviors (Tosi and Nieh, 2019), and create motor disabilities and disturbed motor behavior (Hesselbach and Scheiner, 2019). In line with research showing that sick or poisoned bees can exhibit altruistic suicide by remaining longer outside the nest (Rueppell et al, 2010), chronic exposure to FPF can lead to premature bee foraging (Hesselbach et al, 2020).…”

Section: Introductionmentioning

confidence: 88%

“…Bees can consume FPF at higher concentrations in pollen (21 ppm in oilseed rape) and in nectar (22 ppm in cotton, 39 ppm in apple, and 68 ppm in blueberry) (Glaberman and White, 2014). Recently, Tong et al (2019) showed that a 4 ppm dose, in combination with nutritional stress and season, can reduce bee survival, flight success, thermoregulation, and food consumption (a decrease of 14%).…”

Section: Foraging Cagementioning

confidence: 99%

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Flupyradifurone reduces nectar consumption and foraging but does not alter honey bee recruitment dancing

Pasberg

Diao

et al. 2021

Ecotoxicology and Environmental Safety

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Foraging is essential for honey bee colony fitness and is enhanced by the waggle dance, a recruitment behavior in which bees can communicate food location and quality. We tested if the consumption of nectar (sucrose solution) with a field-realistic concentration of 4 ppm flupyradifurone (FPF) could alter foraging behavior and recruitment dancing in Apis mellifera. Foragers were repelled by FPF. They visited the FPF feeder less often and spent less time imbibing sucrose solution (2.5 M, 65% w/w) with FPF. As a result, bees feeding on the FPF treatment consumed 16% less nectar. However, FPF did not affect dancing: there were no effects on unloading wait time, the number of dance bouts per nest visit, or the number of dance circuits performed per dance bout. FPF could therefore deter bees from foraging on contaminated nectar. However, the willingness of bees to recruit nestmates for nectar with FPF is concerning. Recruitment can rapidly amplify the number of foragers and could overcome the decrease in consumption of FPF-contaminated nectar, resulting in a net inflow of pesticide to the colony. FPF also significantly altered the expression of 116 genes, some of which may be relevant for the olfactory learning deficits induced by FPF and the toxicity of FPF.

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Section: Discussionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 88%

Section: Foraging Cagementioning

confidence: 99%

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Flupyradifurone reduces nectar consumption and foraging but does not alter honey bee recruitment dancing

Pasberg

Diao

et al. 2021

Ecotoxicology and Environmental Safety

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“…Therefore, despite their similar modes of action, each chemical is classified into a distinct group by the Insecticide Resistance Action Committee (IRAC) (neonicotinoids = group 4A, sulfoxaflor = group 4C, flupyradifurone = group 4D [35,36]). Because flupyradifurone and sulfoxaflor are both effective at targeting pest species that are resistant to neonicotinoids [35,37,40,41], they are likely candidates to replace neonicotinoids in areas where the latter is restricted [42] and in areas with high levels of pest resistance [35,36,43]. Flupyradifurone and sulfoxaflor have both been registered for use globally including in the European Union, where neonicotinoid use is heavily restricted.…”

Section: Flupyradifurone and Sulfoxaflor Mode Of Action And Routes Ofmentioning

confidence: 99%

Do novel insecticides pose a threat to beneficial insects?

Siviter

Muth

2020

Proc. R. Soc. B.

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Systemic insecticides, such as neonicotinoids, are a major contributor towards beneficial insect declines. This has led to bans and restrictions on neonicotinoid use globally, most noticeably in the European Union, where four commonly used neonicotinoids (imidacloprid, thiamethoxam, clothianidin and thiacloprid) are banned from outside agricultural use. While this might seem like a victory for conservation, restrictions on neonicotinoid use will only benefit insect populations if newly emerging insecticides do not have similar negative impacts on beneficial insects. Flupyradifurone and sulfoxaflor are two novel insecticides that have been registered for use globally, including within the European Union. These novel insecticides differ in their chemical class, but share the same mode of action as neonicotinoids, raising the question as to whether they have similar sub-lethal impacts on beneficial insects. Here, we conducted a systematic literature search of the potential sub-lethal impacts of these novel insecticides on beneficial insects, quantifying these effects with a meta-analysis. We demonstrate that both flupyradifurone and sulfoxaflor have significant sub-lethal impacts on beneficial insects at field-realistic levels of exposure. These results confirm that bans on neonicotinoid use will only protect beneficial insects if paired with significant changes to the agrochemical regulatory process. A failure to modify the regulatory process will result in a continued decline of beneficial insects and the ecosystem services on which global food production relies.

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“…However, systemic insecticides have insidious effects on bee pollinators and the environment. [9][10][11] Leguminivora glycinivorella is a univoltine insect and does not migrate. 4 The fourth instar (mature) larvae enter the soil in mid to late September, make a tight cocoon in which they overwinter, 1 and remain in this state for 8-9 months until temperatures are warm enough to allow pupation and adult emergence.…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic and proteomic analyses of the mechanisms of overwintering diapause in soybean pod borer (Leguminivora glycinivorella)

Yang

Wang

et al. 2020

Pest Management Science

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BACKGROUND: Soybean pod borer (Leguminivora glycinivorella) is an important soybean pest in northeastern Asia, whose mature larvae overwinter in a diapause state. Disruption of winter diapause may be a valuable tool in pest management. However, the molecular mechanisms regulating diapause in this species have not yet been elucidated. RESULTS: We compared the transcriptomes and proteomes between diapause and mature larvae and between mature and newly developed pupae to identify the genes and proteins associated with diapause. Thirty-seven differentially expressed genes and their proteins changed synchronously between diapause and mature larvae and 82 changed synchronously between diapause larvae and newly developed pupae. Among these, genes involved in fatty acid biosynthesis and the longevity regulating pathway were up-regulated in diapause larvae and down-regulated in newly developed pupae, suggesting that they may regulate diapause. One fatty acid synthase (FAS) gene and two small heat shock genes (HSP19.8 and HSP18.9) were chosen for further functional analysis. After RNA interference (RNAi)-mediated knockdown of FAS, the survival of mature larvae was significantly lower than that of control larvae, but the mean developmental time from first-instar larva to adult remained unchanged. RNAi-mediated knockdown of HSP19.8 and HSP18.9 severely shortened the mean developmental time, causing approximately 50% larvae to develop directly into pupae. CONCLUSION: FAS and the small heat shock gene play roles in diapause regulation and larvae survival. This study provides important information that may assist in understanding the molecular regulatory mechanisms of overwintering diapause of this important agricultural insect pest.

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Combined nutritional stress and a new systemic pesticide (flupyradifurone, Sivanto®) reduce bee survival, food consumption, flight success, and thermoregulation

Cited by 77 publications

References 59 publications

Flupyradifurone reduces nectar consumption and foraging but does not alter honey bee recruitment dancing

Flupyradifurone reduces nectar consumption and foraging but does not alter honey bee recruitment dancing

Do novel insecticides pose a threat to beneficial insects?

Transcriptomic and proteomic analyses of the mechanisms of overwintering diapause in soybean pod borer (Leguminivora glycinivorella)

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