CONTROL OF THE OF MAIN PESTS OF WINTER OILSEED RAPE IN THE CONDITIONS OF VINNYTSIA REGION

Abstract

This article highlights the issue of improved and substantiated elements of the winter oilseed rape protection system against main pests in the Vinnitsa region, which is based on clarification of the species composition of phytophagy in winter oilseed rape, their harmfulness and limiting their numbers when applying seed treatment with insecticides and poisoners. spraying crops with drugs during the growing season of the crop. The species composition of the harmful entomofauna of winter oilseed rape was clarified and 22 species of insects belonging to 6 orders and 16 families were identified. The largest species diversity is characterized by the number of Coleoptera, the share of species of which was 60,2% of the total. The effectiveness of modern insecticides of poisoners against pests of winter oilseed rape and optimized methods of their application were evaluated. It has been established that the highest technical efficiency of insecticide poisoners is noted in versions with poisoners with mixtures of Force 200 SC + Cruiser 350 FS, consumption rate of 1,0+2,0 l/t. and Cruiser 350 FS, w.s.c. at the full consumption rate of 4,0 l/t is a highly effective method of controlling the number of cruciferous fleas. Initial efficiency during the first three days after emergence was 92,0% and 90,5%. During the growing season of winter rape during the testing of insecticides, the highest technical efficiency – 93,3% for spraying rape seedlings against cruciferous fleas was shown by Confidor 20%, w.s.c. Confidor, 20% of the national capital, it provided technical efficiency at the level of 95,3%. This ensured a yield of 3.46 t/ha, and the yield increase was conventionally 0,53 t/ha of the crop.