Erythritol combined with non-nutritive sucralose increases feeding by Drosophila suzukii, quickens mortality and reduces oviposition

Price, Briana E.; Lee, Jana C.; Choi, Man‐Yeon

doi:10.1016/j.cropro.2021.105812

Cited by 8 publications

(29 citation statements)

References 27 publications

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“…To find an alternative to sucrose, we focus on sucralose, which is ~600× sweeter than sucrose (Binns, 2003). In 16 previous feeding preference, survivorship, and oviposition trials, we confirmed sucralose to have insecticidal and phagostimulative properties (Price et al, 2021). Those trials showed that D. suzukii fed up to 40% more on erythritol + sucralose formulations than on erythritol alone.…”

Section: Introductionsupporting

confidence: 81%

“…The erythritol + sucrose combination (E + S) provides flies with a nutritional carbohydrate that flies can break down into glucose and fructose during sucrose metabolism (Lehninger et al, 2000). As sucralose is nonnutritive and sweeter than sucrose, we tested and confirmed that 0.1 M sucralose mixed with 1.5 M erythritol was the most detrimental to D. suzukii survival compared to other formulations and deterred oviposition (Price et al, 2021). In this study, we investigated how D. suzukii metabolizes sucralose (C 12 , MW 397) because it is a structurally similar, chlorinated form of sucrose.…”

Section: Discussionmentioning

confidence: 96%

“…Our previously tested 1.5 M erythritol + 0.5 M sucrose and 1.5 M erythritol + 0.1 M sucralose formulations were found to have insecticidal effects on D. suzukii (Price et al, 2021). The erythritol + sucrose combination (E + S) provides flies with a nutritional carbohydrate that flies can break down into glucose and fructose during sucrose metabolism (Lehninger et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

“…These formulations differed from the concentrations in our other experiments. A higher‐dose (1.5 M) erythritol and lower‐dose sucralose (0.1 M) were tested here as these concentrations induced the highest mortality in Price et al (2021) and are being used in field trials. A comparison of flies fed sucrose‐only to E + S or S + Sul reveals whether simultaneous consumption of erythritol or sucralose might impede sucrose metabolism.…”

Section: Materials Methods and Statisticsmentioning

confidence: 99%

“…Finding alternative management options to replace these insecticides and efficiently control D. suzukii populations is a challenge. Erythritol combined with sucralose is a promising management option as our past laboratory feeding trials indicate that the erythritol + sucralose combination and sucralose alone have insecticidal and phagostimulative effects on D. suzukii (Price et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Effects of nonnutritional sugars on lipid and carbohydrate content, physiological uptake, and excretion in Drosophila suzukii

Price

Yoon

Choi

et al. 2021

Arch Insect Biochem Physiol

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The nonnutritive sugar, erythritol, has the potential to be a human-safe management tool for the small fruits and cherry pest, Drosophila suzukii, or spotted-wing drosophila.Feeding on erythritol decreases fly survival and oviposition by starving and creating an osmotic imbalance in the body.Recently, we demonstrated that erythritol combined with another nonnutritive sugar, sucralose, was fed upon more than erythritol alone and hastens D. suzukii mortality. This suggests that sucralose is a suitable nonnutritive phagostimulant alternative to sucrose. Although promising, the nutritional and physiological impacts of sucralose on D. suzukii are unknown. In this study, we investigated whether sucralose is metabolized or excreted by D. suzukii when fed various erythritol, sucrose, and sucralose formulations. We found that sucralose cannot be metabolized or converted into any nutritional substitutes or storage carbohydrates in D. suzukii. Instead, sucralose molecules were largely accumulated in the hemolymph and slowly excreted from the body, creating a significant osmotic imbalance in D. suzukii. To excrete unused sugars, flies will use their own body fluids to restore homeostasis, resulting in losing a substantial amount of body weight and becoming

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Section: Introductionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Materials Methods and Statisticsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of nonnutritional sugars on lipid and carbohydrate content, physiological uptake, and excretion in Drosophila suzukii

Price

Yoon

Choi

et al. 2021

Arch Insect Biochem Physiol

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Erythritol sprays reduce Drosophila suzukii infestation without impacting honey bee visitation nor fruit quality

Lee

Price

Adams

et al. 2023

Pest Management Science

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BackgroundSpotted‐wing drosophila, Drosophila suzukii, is an economic pest of small fruits and cherries. Insecticides primarily control this pest while alternative controls are in development. Laboratory studies show that erythritol is insecticidal to D. suzukii and other pests while safe for human consumption. Moreover, erythritol combined with sucrose or non‐caloric sucralose can stimulate feeding and quicken mortality. Before growers can use erythritol, the impact on crop protection, non‐target insects, and fruit quality need evaluation.ResultsIn three blueberry and cherry field cage trials, oviposition on fruit sprayed with erythritol:sucrose or erythritol:sucralose formulations was lowered by 59‐81% compared to unsprayed controls. Fly infestation (larval or adult counts from fruit) was 90% lower in a greenhouse blueberry trial, and 49% lower in an open field blueberry trial with 2M erythritol: 0.5M sucrose. Infestation was also 57% lower in an open field cherry trial with 1.5M erythritol: 0.5M sucrose. Other field trials with very low pest pressure or frequent rains revealed no differences from controls. Field trials consistently revealed that honey bees did not preferentially visit plants sprayed with either erythritol formulation, although yellow jackets visited erythritol:sucrose‐sprayed plants more frequently. Erythritol formulations consistently led to more leaf spotting, but there was no reduction in quality of treated blueberries or cherries in terms of mold development, firmness, diameter, epidermal penetration force, and Brix° (total soluble solids; TSS) at harvest.ConclusionEleven trials conducted over four years show that erythritol formulations can reduce D. suzukii pressure without attracting foraging honey bees nor negatively impacting fruit quality.This article is protected by copyright. All rights reserved.

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Evaluating potential phytotoxicity of erythritol solution, a novel control method for Drosophila suzukii, in blueberry, cherry, and wild Himalayan blackberry

Sriram,

Scagel,

Choi

et al. 2025

Crop Protection

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Erythritol combined with non-nutritive sucralose increases feeding by Drosophila suzukii, quickens mortality and reduces oviposition

Cited by 8 publications

References 27 publications

Effects of nonnutritional sugars on lipid and carbohydrate content, physiological uptake, and excretion in Drosophila suzukii

Effects of nonnutritional sugars on lipid and carbohydrate content, physiological uptake, and excretion in Drosophila suzukii

Erythritol sprays reduce Drosophila suzukii infestation without impacting honey bee visitation nor fruit quality

Evaluating potential phytotoxicity of erythritol solution, a novel control method for Drosophila suzukii, in blueberry, cherry, and wild Himalayan blackberry

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