Browsing by Author "Hutchison, W.D."
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Item BMSB Fast Facts (Hmong)(2014) Cira, T.; Hutchison, W.D.Item Efficacy of organic and conventional insecticides for Drosophila suzukii when combined with erythritol, a non-nutritive feeding stimulant(Crop Protection, 2019) Gullickson, Matthew G.; Rogers, Mary A.; Burkness, Eric C.; Hutchison, W.D.Spotted-wing drosophila (Drosophila suzukii; SWD) is an economically important insect pest of small and soft skinned fruit. Female SWD use a heavily sclerotized ovipositor to deposit eggs in ripening fruit. After emergence from eggs, larval feeding and development damages fruit and results in yield loss. The most prevalent management strategy continues to be regular applications of broad-spectrum insecticides. Since the arrival of SWD and the subsequent increase of insecticidal sprays, producers are challenged to balance goals related to pest and pollinator management, the environment, and finances. Growers need additional management tools in order to reduce environmental risks and to adhere to label specifications. To this end, we investigated the efficacy of novel chemical controls alone and with the addition of feeding stimulants and surfactants, compared to standard insecticide products typically used for pest management by fruit growers. We conducted a series of laboratory bioassays to test four organically approved insecticides, three conventional insecticides, one feeding stimulant and five adjuvants. We measured the effects of these products on SWD adult mortality, oviposition, larval and pupal development, and adult emergence. Nine of the 25 treatments significantly increased adult mortality after 24 h of exposure and only three of the 25 treatments significantly reduced oviposition. The addition of erythritol [1.75 M] to some marginally effective insecticides increased their efficacy, while decreasing the efficacy of others. This information will guide future research and result in recommendations for both organic and conventional growers for sustainable management of this invasive pest. •Laboratory study of 25 treatments on Drosophila suzukii mortality and development.•Erythritol, GS-omega/kappa-Hxtx-Hv1a, and novaluron increased D. suzukii mortality.•Erythritol inconsistently increased efficacy of insecticides on D. suzukii.•Non-nutritive feeding stimulant treatments did not decrease D. suzukii oviposition.Item IPM and the Bottom Line: Cabbage(St. Paul, MN: University of Minnesota Extension Service, 2006) Hutchison, W.D.; Burkness, E.C.; Carrillo, M.A.Item Partial Budget Analysis of Exclusion Netting and Organic- certified Insecticides for Management of Spotted-wing Drosophila (Diptera: Drosophilidae) on Small Farms in the Upper Midwest(Journal of Economic Entomology, 2021-05) DiGiacomo, Gigi; Gullickson, M.G.; Rogers, M.; Peterson, H.H.; Hutchison, W.D.Drosophila suzukii Matsumura (Diptera: Drosophilidae), or spotted-wing drosophila, is an invasive pest first detected in the United States in 2008. Although D. suzukii can use many cultivated fruit as hosts, raspberries are considered ‘most at risk’ for infestation. Conventional broad-spectrum insecticides are proven effective D. suzukii controls and can be economically profitable when combined with integrated pest management (IPM) on large-scale commercial raspberry farms. It remains unclear, however, whether organic controls are cost-effective strategies, particularly for farms operating on a small-scale seasonal basis, as is common in the Upper Midwest. The purpose of this paper is to explore the efficacy of two organic D. suzukii controls— exclusion netting for high tunnels and organic insecticides for open plots using data available from different field trials—and to ascertain whether any economic benefits of the organic controls outweigh treatment costs for small-scale raspberry operations under different risk scenarios. The field trials suggest that the organic treatments are effective controls for D. suzukii infestation and economically profitable. The exclusion net- ting treatment produced positive net returns compared to the alternative of no treatment and economically outperformed the organic-certified insecticide treatment for several yield, price and infestation scenarios. As D. suzukii infestation rates increased, net returns improved for both organic treatments. The economic results were robust across a range of yields and prices, suggesting that in almost all scenarios small scale organic raspberry growers benefit economically from the application of exclusion netting on high tunnels and insecticides for open plots.Item Sweet Corn For Processing: Value And Risk Of IPM For European Corn Borer(St. Paul, MN: University of Minnesota Extension Service, 2006) Mitchell, P.D.; Hutchison, W.D.; Burkness, E.C.; Koch, R.L.This publication includes economic analysis and risk management benefits of Integrated Pest Management (IPM) for European Corn Borer (ECB) control in sweet corn.