Cold Hardiness of Winter-Acclimated Drosophila suzukii (Diptera: Drosophilidae) Adults

Environmental Entomology
A R StephensR C Venette

Abstract

Drosophila suzukii Matsumura, often called spotted wing drosophila, is an exotic vinegar fly that is native to Southeast Asia and was first detected in the continental United States in 2008. Previous modeling studies have suggested that D. suzukii might not survive in portions of the northern United States or southern Canada due to the effects of cold. As a result, we measured two aspects of insect cold tolerance, the supercooling point and lower lethal temperature, for D. suzukii summer-morph pupae and adults and winter-morph adults. Supercooling points were compared to adults of Drosophila melanogaster Meigen. The lower lethal temperature of D. suzukii winter-morph adults was significantly colder than that for D. suzukii summer-morph adults, while supercooling points of D. suzukii winter-morph adults were actually warmer than that for D. suzukii summer-morph adults and pupae. D. suzukii summer-morph adult supercooling points were not significantly different than those for D. melanogaster adults. These measures indicate that D. suzukii is a chill intolerant insect, and winter-morph adults are the most cold-tolerant life stage. These results can be used to improve predictions of where D. suzukii might be able to establish overw...Continue Reading

References

Jul 6, 2010·Journal of Insect Physiology·David Denlinger, Dale Seaton
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Nov 6, 2010·Physiological and Biochemical Zoology : PBZ·Lauren A StrachanBrent J Sinclair
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Citations

Apr 4, 2019·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Thomas Enriquez, Hervé Colinet
May 18, 2020·Journal of Insect Science·Catherine M LittleN Kirk Hillier
May 17, 2017·Environmental Entomology·Andrea R HeftyRobert C Venette
Jul 18, 2017·Pest Management Science·Selim TerhzazShireen A Davies
Aug 18, 2017·Pest Management Science·Steven Van TimmerenRufus Isaacs
Apr 11, 2020·Ecology and Evolution·Ceferino Varón-GonzálezVincent Debat
Jun 27, 2019·The Journal of Experimental Biology·Christophe PlantampEmmanuel Desouhant
Dec 28, 2017·Environmental Entomology·Alberto GrassiVaughn M Walton
Nov 18, 2018·Frontiers in Physiology·Thomas EnriquezHervé Colinet
Nov 6, 2018·Environmental Entomology·Christelle GuédotKatie Hietala-Henschell
Aug 21, 2018·Environmental Entomology·Anna K WallingfordGregory M Loeb

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