
The article presents information on the distribution and biology of the pest of juniper trees Cinara tujafilina (del Guerc.) In the conditions of the Ferghana valley. Cinara tujafilina leads a colony-forming lifestyle. This species gives 13-14 generations in the lowlands of the Ferghana valley and 9-10 generations in the mountainous region. This species is considered to be an abundant sap divider, heavily polluting trees and as a result causing diseases and early death of plants.