Three-component herbicide pixel for the protection of winter wheat crops

The research was carried out to assess the biological and economic efficiency of the new three-component herbicide “Pixel”, MD of JSC "Shchelkovo Agrochem" (90 g/l of tifensulfuron-methyl + 24 g/l of flumetsulam + 18 g/l of florasulam) on winter wheat crops in the Krasnodar Territory. The work was carried out in the field crop rotation of the Federal Scientific Center for Biological Plant Protection (2017–2018) according to the guidelines of registration tests of herbicides in agriculture. The soil is leached chernozem. The area of the plot is 25 m2 with a four-fold repetition, the flow rate of the working fluid is 200 l/ha. The scheme of the experiment involved the use of the tested herbicide “Pixel”, MD in the norms of 0.25, 0.27 and 0.30 l/ha, the standards of 0.05 l/ha “Derby 175”, SK and 0.60 l/ha “Prima Donna”, SE, a variant with-out herbicides (control). Herbicide treatment was carried out in the tillering phase of winter wheat. The infestation of crops with dicotyledonous weeds averaged 70 copies/m2. The herbicidal effect of the drugs was evaluated by reducing the number and weight of weeds, as well as by changing the yield of grain in comparison with the control. All types of weeds (bedstraw tenacious, samoseika poppy, field yascolka, bristly bodyak) showed high sensitivity to the drug. In the variants with the use of the herbicide “Pixel”, MD in the norms of 0.25–0.30 l/ha, 89–100 % herbicidal effect was noted. At the same time, no negative effect on the crop was observed and reliable increases in the yield of winter wheat grain were obtained (7.8–9.1 %). The obtained data for two years showed a high biological and economic efficiency of the herbicide “Pixel”, MD in winter wheat crops.