Parasitism of Adult Pentatomidae by Tachinidae in Soybean in the North Central Region of the United States

Abstract Stink bugs (Hemiptera: Pentatomidae) are agricultural pests of increasing significance in the North Central Region of the United States, posing a threat to major crops such as soybean. Biological control can reduce the need for insecticides to manage these pests, but the parasitism of stink...

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Bibliographic Details
Published in:Journal of insect science (Tucson, Ariz.) Ariz.), 2020-05, Vol.20 (3)
Main Authors: Anderson, Pheylan A, Pezzini, Daniela T, Bueno, Nádia M, DiFonzo, Christina D, Finke, Deborah L, Hunt, Thomas E, Knodel, Janet J, Krupke, Christian H, McCornack, Brian P, Philips, Christopher R, Varenhorst, Adam J, Wright, Robert J, Koch, Robert L
Format: Article
Language:English
Subjects:
Agricultural pests
Animals
Biological control
Crops, Agricultural - growth & development
Diptera - physiology
Female
Glycine max - growth & development
Heteroptera - parasitology
Host-Parasite Interactions
Insect Control
Insecticides
Male
Midwestern United States
Pest Control, Biological
Pests
Soybean
Stink bugs
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Summary:Abstract Stink bugs (Hemiptera: Pentatomidae) are agricultural pests of increasing significance in the North Central Region of the United States, posing a threat to major crops such as soybean. Biological control can reduce the need for insecticides to manage these pests, but the parasitism of stink bugs by Tachinidae (Diptera) is poorly characterized in this region. The objective of this study was to evaluate the rate of parasitism of stink bugs by tachinids over 2 yr from nine states across the North Central Region. Parasitism was assessed by quantifying tachinid eggs on the integument of stink bug adults. Parasitism rates (i.e., percent of adult stink bugs with tachinid eggs) were compared across stink bug species, states, stink bug sex, and years. The mean percent parasitism of stink bugs by tachinids was about 6% across the region and did not differ among stink bug species. Mean percent parasitism was significantly higher in Missouri than in northern and western states. In addition, male stink bugs had significantly higher mean percent parasitism than females. Stink bug species commonly found in soybean in the region showed some parasitism and are therefore potentially vulnerable to oviposition by these parasitoids. This is the first study to characterize the level of parasitism of stink bugs by tachinids across the North Central Region.
ISSN:1536-2442
1536-2442
DOI:10.1093/jisesa/ieaa030