Use of Microbiological Preparations in the Fight Against Tetranychus urticae Koch on Roses, in the Conditions of the Protected Ground of the Tashkent Region

Abstract

Presents data on the effect, under protected ground conditions of the Tashkent region, on the number of spider mites (Tetranychus urticae Koch) on roses, safe preparations for the environment. Microbiological preparations were used: Bitoxibacillin P, Bioslip BV, Bioslip BT, bioinsecticide Fitoverm 5% a. e. As a result, the best biological efficiency was in the variant when using Fitoverm 5% a. e., at consumption rate of 0.8 l/ha and ranged from 84.7% to 85.9%. In order to increase the effectiveness of the fight to reduce the number of spider mites (T. urticae), applied combined options: Fitoverm 5% a. e. 0.4 l/ha + Bitoxibacillin P 2 l/ha, and Fitoverm 5% a. e. 0.8 l/ha + Bitoxibacillin P 3 l/ha, where biological efficiency was obtained in the Fitoverm variant 5% a. e. 0.8 l/ha + Bitoxibacillin P 3 l/ha, up to 98.2% already on the third day and 98.6% lasted until the 14th day of observations.