System of protection of phacelia tanacetifolia from weeds

Abstract

The paper presents the results of the research on biological and economic efficiency of the herbicide Egida, SC (mesotrione, 480 g/l), produced by the company Avgust, Russia. It was established that with pre-emergence application of the herbicide at the rate of 0.2–0.3 l/ha after sowing Phacelia tanacetifolia infestation decreased by 84.1–90.7 % in terms of the number and by 84.1–93.3 % in terms of the weight on average for 2021–2023. Egida, SC destroys quite efficiently annual dicotyledonous weeds (lambsquarter goosefoot, chickweed, bitter winter cress, common spurrey) and increases seed yield by 2.31 c/ha.