Estimation of the efficiency of autumn treatment of winter wheat crops with a new herbicide Fomdos, KS
https://doi.org/10.31367/2079-8725-2025-100-5-70-75
Abstract
The current paper has presented the results of small-plot field trials with a new combined herbicide Fomdos, SC (400 g/l flufenacet + 100 g/l diflufenican) on winter wheat crops during two vegetation periods (2020–2021 and 2021–2022).
The purpose of the current study was to determine the biological and economic efficiency of autumn application of this herbicide in field conditions.
The trials were carried out on the varieties ‘Moskovskaya 39’, ‘Danaya’, ‘Bezostaya 100’, ‘Antonina’, ‘Novoershovskaya’ in accordance with the “Methodological recommendations for conducting registration tests of herbicides” (2020) in the Ryazan, Voronezh and Volgograd regions. Weed infestation of crops was recorded using the quantitative-weight method in autumn (before applying herbicides, two weeks and a month after treatment) and in spring (upon resumption of plant vegetation), as well as before harvesting. The use of the herbicide Fomdos, SC has provided a high level of weed control. In the variant with the maximum rate of its application (0.8 l/ha), the reduction in the total number of weeds was 79.4–98.0 %, the reduction in the mass of young dicotyledonous weeds was 76.8–98.8 %, and the reduction in the mass of young cereal weeds was 89.1–100 %. The use of the studied product at the rates of 0.4–0.8 l/ha was highly effective in controlling the most frequently encountered species in the trials such as shepherd’s purse, bedstraw, field violet and windgrass. In all variants with the studied herbicide, there have been obtained statistically significant increases crop yield compared to the control without treatment (from 0.12 to 0.99 t/ha depending on the region and year of the study).
Supporting agencies: The work was carried out as part of the state assignment FGEU-2025-0006 – FGBNU All-Russian Research Institute of Plant Protection
About the Authors
A. S. Golubev
FSBSI “All-Russian Institute of Plant Protection”
Russian Federation
Russian Federation
Candidate Biological Sciences, leading researcher
Center for biological regulation of pesticide use
196608; Podbelsky Av., 3; St. Petersburg; Pushkin
A. S. Tkach
FSBSI “All-Russian Institute of Plant Protection”
Russian Federation
Russian Federation
Candidate Biological Sciences, junior researcher
Center for biological regulation of pesticide use
196608; Podbelsky Av., 3; St. Petersburg; Pushkin
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Review
For citations:
Golubev A.S., Tkach A.S. Estimation of the efficiency of autumn treatment of winter wheat crops with a new herbicide Fomdos, KS. Grain Economy of Russia. 2025;17(5):70-75. (In Russ.) https://doi.org/10.31367/2079-8725-2025-100-5-70-75
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