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Comparing the Effects of Two Tillage Operations on Beneficial Epigeal Arthropod Communities and Their Associated Ecosystem Services in Sugar Beets

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dc.contributor.author Pretorius, Rudolph J.
dc.contributor.author Hein, Gary L.
dc.contributor.author Blankenship, Erin E.
dc.contributor.author Purrington, Foster F.
dc.contributor.author Wilson, Robert G.
dc.contributor.author Bradshaw, Jeffrey D.
dc.date.accessioned 2019-08-26T11:32:13Z
dc.date.available 2019-08-26T11:32:13Z
dc.date.issued 2018-09-27
dc.identifier.other doi.org/10.1093/jee/toy285
dc.identifier.uri http://hdl.handle.net/11462/2008
dc.description Published Article en_US
dc.description.abstract Beneficial arthropods provide important ecosystem services in terms of arthropod pest and weed management, but these services can be adversely affected by farming practices such as tillage. This study investigated the impact of two tillage operations (zone tillage and moldboard plow) on the activity density of several beneficial, epigeal arthropod taxa, and postdispersal weed seed and prey removal in sugar beet agroecosystems. In addition, four omnivorous ground beetle species were selected for a weed-seed choice feeding assay, whereas a single species was selected for a weed-seed age preference assay. Ground beetles were the most commonly collected taxon (via pitfall sampling), with only a few dominant species. Tillage operation did not affect ground beetle activity density; however, spider, centipede, and rove beetle activity densities were higher in the reduced-tillage treatment. Live prey consumption was similar between tillage practices, with more prey consumed during nocturnal hours. More weed seeds were consumed in the reduced-tillage treatment, whereas weed-seed preference differed between the four weed species tested [Setaria pumila (Poir.) Roem. & Schult., Echinochloa crus-galli (L.), Kochia scoparia (L.), and Chenopodium album (L.)]. In the weed-seed choice feeding assay, significantly more broad-leaf weed seeds (C. album and K. scoparia) were consumed compared with grassy weed seeds (E. crus-galli and S. pumila). No preference for seed age was detected for E. crus-galli, but Harpalus pensylvanicus (De Geer) preferred old C. album seeds over fresh seeds. Zone tillage is compatible with ecosystem services, providing critical habitat within agricultural ecosystems needed to conserve beneficial, edaphic arthropods. en_US
dc.language.iso en en_US
dc.publisher Journal of Economic Entomology en_US
dc.relation.ispartofseries Journal of Economic Entomology, Volume 111, Issue 6, December 2018, Pages 2617–2631,;
dc.subject Ground beetle en_US
dc.subject Tillage en_US
dc.subject Weed en_US
dc.subject Predation en_US
dc.title Comparing the Effects of Two Tillage Operations on Beneficial Epigeal Arthropod Communities and Their Associated Ecosystem Services in Sugar Beets en_US
dc.type Article en_US

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