Efficacy of 4 mil polypropylene netting for management of Synanthedon myopaeformis in British Columbian apple orchards
MacDonald JL, Judd GJR, Zurowski-Tiffin K. 2022. Efficacy of 4 mil polypropylene netting for management of Synanthedon myopaeformis in British Columbian apple orchards. Joint Annual Meeting: Entomological Society of America, Entomological Society of Canada, Entomological Society of British Columbia. Vancouver, BC, Canada. 16 November 2022. Poster.
Apple clearwing moth (ACM; Synanthedon myopaeformis) is an invasive Sesiidae moth established in the apple growing regions of the Similkameen and Okanagan Valleys, British Columbia. Increasing incidence of infestation and a growing range have underscored the need for more management options for growers. During the 2020, 2021, and 2022 growing seasons, we evaluated the efficacy of 1/6″ (4 mm) square mesh polypropylene insect netting for management of ACM on apple trees. No effect was detected after one season; however, a reduction to 0% infestation with netting application was observed in a second season of use, and larval emergence was reduced by 67-71% in year 3.