Effect of Chemical Ratios of a Microbial-Based Feeding Attractant on Trap Catch of Drosophila suzukii (Diptera: Drosophilidae)

Environmental Entomology
Dong H ChaTodd B Adams

Abstract

Drosophila suzukii Matsumura, spotted wing drosophila, can be trapped with a feeding attractant based on wine and vinegar volatiles and consisting of acetic acid, ethanol, acetoin, and methionol. Using that four-component blend, we found that the catch of spotted wing drosophila increased with increases in the release rate of acetoin (from 0.5 mg/d to 34 mg/d) from polyethylene sachet dispensers, and with increases in the concentrations of acetic acid (from 0.25% to 4%) or ethanol (from 0.08% to 2%) when dispensed in the trap drowning solution. However, we saw no increase in spotted wing drosophila trapped with increase of the methionol release rate from 0.4 mg/d to 4.9 mg/d or from 0.19 mg/d to 0.8 mg/d, from sachets. A new formulation based on optimized amounts of these four chemicals yielded a doubling of spotted wing drosophila trapped compared to a previously reported formulation. Further field testing confirmed that the simultaneous increases in the release rate of acetoin from a dispenser and the amount of acetic acid in the trap drowning solution provided the increased spotted wing drosophila trap response to the new formulation. These findings provide a practical means to improve the power of this lure to detect and mo...Continue Reading

References

Jun 14, 2005·Trends in Plant Science·Toby J A BruceChristine M Woodcock
Aug 16, 2005·International Journal of Food Microbiology·Nathalie MoreiraIsabel Vasconcelos
Feb 1, 1996·Applied and Environmental Microbiology·P Romano, G Suzzi
Sep 16, 2011·Pest Management Science·Elizabeth H BeersJoseph A Grant
Aug 31, 2013·PloS One·J Roman ArguelloRobert A Raguso

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Citations

Feb 23, 2018·Insect Molecular Biology·M T FountainN Harrison
Jul 18, 2020·Bulletin of Entomological Research·Samuel Cruz-EstebanJulio C Rojas
Apr 19, 2018·Environmental Entomology·Dong H ChaPeter J Landolt
Nov 7, 2019·Scientific Reports·Catherine M LittleN Kirk Hillier
Jul 29, 2018·Journal of Chemical Ecology·Kevin R CloonanCesar Rodriguez-Saona
Nov 26, 2020·Pest Management Science·Dong H ChaGregory M Loeb

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