THERAPEUTIC EFFICACY OF VARROPlAST M WITH VARROATOSIS IN THE AUTUMN PERIOD

The purpose of research is to study the effectiveness of varroplast M in varroatosis in apiaries of the Tyumen Region. The object of the study is bee colonies with varroatosis. Varroplast M (prototype) is wooden plates 3.0×20×0.1 cm in size containing fluvalinate and auxiliary components. The experiments were carried out in the same apiary in the Tyumen Region in September 2021 (experiment № 1) and in October 2022 (experiment № 2) on barren bee colonies according to the same scheme. The average daily air temperature during the experiments was 8.9 and 9.90 °C, respectively. For the first experiment, 10 bee colonies were selected, the second – 20 bee colonies of the same strength (12 frames on average), which were divided into 2 equal groups: experimental and control. In the experimental families, 2 plates of the drug were introduced, evenly placing them in the nest. Control families were not treated. Dead ticks were recorded after 2 days in all groups for 10 days. The results obtained were processed using the ANOVA statistic program. It was established that the treatment of barren bee families in the autumn period with varroplast M by introducing 2 plates of the drug into the hive for a period of 10 days reduces the number of varroa mites by 91.6 ± 0.5 – 92.8 ± 1.1 %. There were no deaths of bees and queens during the experiment. Varroplast M is a highly effective acaricide in the treatment of barren bee colonies in the late autumn period in the conditions of the Tyumen Region.