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

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          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.

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          Most cited references 25

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          Biology, Ecology, and Management of Brown Marmorated Stink Bug (Hemiptera: Pentatomidae)

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            TACHINIDAE: evolution, behavior, and ecology.

            Tachinidae are one of the most diverse and ecologically important families in the order Diptera. As parasitoids, they are important natural enemies in most terrestrial ecological communities, particularly as natural enemies of larval Lepidoptera. Despite their diversity and ecological impact, relatively little is known about the evolution and ecology of tachinids, and what is known tends to be widely dispersed in specialized reports, journals, or texts. In this review we synthesize information on the evolutionary history, behavior, and ecology of tachinids and discuss promising directions for future research involving tachinids. We provide an overview of the phylogenetic history and geographic diversity of tachinids, examine the evolution of oviposition strategies and host associations, review known mechanisms of host location, and discuss recent studies dealing with the ecological interactions between tachinids and their hosts. In doing so, we highlight ways in which investigation of these parasitoids provides insight into such topics as biogeographic patterns of diversity, the evolution of ecological specialization, the tritrophic context of enemy-herbivore interactions, and the role of host location behavior in shaping host range.
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              An invasive stink bug as an evolutionary trap for an indigenous egg parasitoid


                Author and article information

                Role: Subject Editor
                J Insect Sci
                J. Insect Sci
                Journal of Insect Science
                Oxford University Press (US )
                May 2020
                04 May 2020
                04 May 2020
                : 20
                : 3
                [1 ] Department of Entomology, University of Minnesota , St. Paul, MN
                [2 ] Department of Entomology, Michigan State University , East Lansing, MI
                [3 ] Division of Plant Sciences, University of Missouri-Columbia , Columbia, MO
                [4 ] Department of Entomology, University of Nebraska , Concord, NE
                [5 ] Department of Plant Pathology, North Dakota State University , Fargo, ND
                [6 ] Department of Entomology, Purdue University , West Lafayette, IN
                [7 ] Department of Entomology, Kansas State University , Manhattan, KS
                [8 ] Department of Agronomy, Horticulture and Plant Science, South Dakota State University , Brookings, SD
                [9 ] Department of Entomology, University of Nebraska-Lincoln , Lincoln, NE
                Author notes
                Corresponding author, e-mail: koch0125@
                © The Author(s) 2020. Published by Oxford University Press on behalf of Entomological Society of America.

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

                Page count
                Pages: 4
                Funded by: North Central Soybean Research Program;
                Short Communication


                diptera, stink bug, biological control, parasitoid, midwest


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