Effect of non-nutritive sugar formulations on spotted wing drosophila and honeybee

Authors: Choi, Man-Yeon; Lee, Jana; SAGILI, RAMESH - Oregon State University

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 7/1/2018
Publication Date: 11/13/2018
Citation: Choi, M.Y., Lee, J.C., Sagili, R. 2018. Effect of non-nutritive sugar formulations on spotted wing drosophila and honeybee. Abstract for 2018 Annual meeting of Entomological Society of America November 11-14, 2018 in Vancouver, BC, Canada. Presentation 1806.

Interpretive Summary:

Technical Abstract: The spotted wing drosophila, Drosophila suzukii, originally from Asia is now a serious small fruit and cherry pest in Europe and North America. During develop biologically-based control methods we discovered novel formulations of non-nutritive sugars and sugar alcohols effect on the survivorship and fecundity in the fly with blueberry fruits. A large amount of erythritol was observed in the hemolymph of erythritol/sucrose-fed flies, but a relatively lower amount of erythritol was detected in the fly feces, that suggest the excretion of erythritol could be delayed after ingestion. The fly mortality would be caused by the fly starvation by feeding of non-metabolizable erythritol, and/or by physiological osmotic imbalance in the hemolymph where sugars were diffused from the midgut. We also investigated potential impacts of the sugar formulation on the honeybee in the indoor, and identified no significant effect on the honeybee survival and safe for the bee colony. Therefore, the sugar formulation might be used as a non-toxic insecticide or as a novel delivery agent combined with biological insecticides to enhance efficacy.