Onion Maggot Control with Trigard Seed Treatments, 1992

Abstract

Abstract Two experiments were planted 4 May in muck soil near Prattsburg, New York, on Franjo Farms. Treatments were single rows, 30 ft long, replicated 4 times in a randomized complete block design. Germination and damage data were recorded from the center 20 ft of each row. All treated seeds were sown and seed-furrow treatments of insecticides were applied using a hand-pushed cone seeder that planted 9 seeds/ft and delivered 75 gal of water/acre through a gravity-fed system based on a 15 inch row width. Trigard 75 WP was applied to the seed either by pelleting or film coating. Pelleted treatments were applied by mixing Trigard 75 WP with 140 mesh sand and coating it using a copper pan treater and air brush. Progrow (Vitavax and Thiram) was included in the pellet for each specified seed treatment at the rate of 25 g of formulation/kg of seed and Dithane (F45) applied in the furrow with the Lorsban drenches at 2.4 qts formulation/acre for control of onion smut, Urocystis cepulae. Film treatments were applied by suspending Trigard 75 WP in a 15% soln of Opadry F (Colorcon Co.) and then spraying the seeds. Progrow was applied during the film-coating procedure.