BIOLOGICAL EFFECTIVENESS OF PREPARATIONS USED AGAINST VIRGINIAN JUNIPER APHIDS

Abstract

This article analyzes the biological effectiveness of several chemical preparations (Confidor 20% e.c., Bi-58 (new) 40% e.c., Enjeo 24.7% e.c., and Bagira 20% e.c.) applied at different dosage rates against aphid pests (Pterochloroides persicae, Chaitophorus populeti, Sacchiphantes viridis) identified on virgin fir trees cultivated in Tashkent city and Tashkent region.