Two Pests Overlap: Drosophila suzukii (Diptera: Drosophilidae) Use of Fruit Exposed to Halyomorpha halys (Hemiptera: Pentatomidae)

Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) and brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), are global economic pests that may co-occur on small fruits. We investigated whether fruit recently exposed to H. halys affected subsequent host use by D. suzuk...

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Bibliographic Details
Published in:Journal of economic entomology 2017-08, Vol.110 (4), p.1938-1941
Main Authors: Woltz, J. Megan, Wiman, Nik G, Lee, Jana C
Format: Article
Language:English
Subjects:
Animals
blueberry
Blueberry Plants - physiology
Choice Behavior
competition
Drosophila - growth & development
Drosophila - physiology
Feeding Behavior
Fruit - physiology
Herbivory
Heteroptera - physiology
invasive
Larva - growth & development
Oviposition
Ovum - growth & development
Pupa - growth & development
raspberry
resource overlap
Rubus - physiology
SHORT COMMUNICATION
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Summary:Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) and brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), are global economic pests that may co-occur on small fruits. We investigated whether fruit recently exposed to H. halys affected subsequent host use by D. suzukii. Laboratory no-choice and choice tests presented D. suzukii with H. halys-fed and unfed raspberries and blueberries immediately or 3 d after H. halys feeding. Resulting D. suzukii eggs, or larvae and pupae, were counted. The number of D. suzukii immatures among fed and unfed fruit was not significantly different in lab studies. There was no relationship between the intensity of H. halys feeding, as estimated by the number of stylet sheaths, and D. suzukii oviposition on blueberry. Lastly, field studies compared D. suzukii infestation between H. halys-fed and unfed raspberries. Raspberries were previously exposed to H. halys for 3 d or simultaneously exposed to both pests for 7 d. Natural infestation by D. suzukii in the field was similar among raspberries previously or simultaneously exposed to H. halys compared to control fruit.
ISSN:0022-0493
1938-291X
DOI:10.1093/jee/tox156