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The article presents the data from a study of the dynamics of Currant bud mite in a seed-field “Flora-Garden” LLC in Kemerovo for 2018-2019 and describes the influence of metabolic products of Streptomyces avermectilis contained in the biological preparation Fitoverm on its characteristics. Two-year-old seedlings of blackcurrant (Ribes nigrum L.) variety Ilya Muromets with a closed-root system were used as planting material. The plants were treated during the gemmation period at the end of the first May decade with the hand sprayer “ORION-6”, the flow rate was 500 l/ha. The phytophage mass output was observed during the ovary formation in the third May decade in 2018 and in the second May decade in 2019. It was found that the metabolic products of Streptomyces avermectilis reduced the Currant bud mite yields during the studied period by 1.5 times, as well as influenced the phytophage population dynamics, which became uniform without peaks of mass output.

The Effect of Metabolic Products of Streptomyces Avermectilis on the Dynamics of Currant Bud Mite on Blackcurrant Seedlings with a Closed-Root System in Seed-Field Conditions