Some aspects regarding the combat through chemotherapy of the fungus Erysiphe Graminis f. sp. the hordes

Abstract

The article presents the results of state testing of the biological effectiveness of the chemical products Sulfex Gold, WG (sulfur, 800 g/kg) and Camporo 25 EC (prothioconazole, 125 g/l + tebuconazole, 125 g/l) against the fungus Blumeria graminis (DC .) f. sp. hordei Speer, which causes milling of barley. The experimental data obtained show that the biological efficiency of the treatments with Sulfex Gold, WG and Camporo 25 EC in the second dose was at the level of the standard variants, and the products can be recommended for inclusion in the State Register of phytosanitary products and fertilizers and in the integrated winter barley protection system as fungicides against powdery mildew.