Homoptera - apple pests in forest communities of Fergana valley, Uzbekistan

Tashkent State Agrarian University, 2, University street, Tashkent, 100140, Uzbekistan

^* Corresponding author: a.kojevnikova@tdau.uz

Abstract

This article presents the results of the study of apple’s homoptera pests in the forest communities of Fergana Valley, biological features, harmfulness, features of development phases, specific composition of the most harmful species, food relations, their natural enemies and recommended measures to control them. Species that are a component of entomocenoses of cultural and natural landscapes of Fergana Valley, their negative impact on forest communities have been established. It was revealed that the species of homoptera insects, in particular cicadas, in Fergana Valley are characterized by complex bioecological features, highly specialized and adapted for habitation. The research is of theoretical and practical importance, since many species are pests and some species carry viral diseases. The Auchenorryncha pest series is distinguished by diversity in species composition and amount. The pest Cicadatra querula (Pall.) breeds in mass numbers in some years. The nature of the damage caused by C. querula (Pall.) was studied, since insects suck plant juices and damage fruit and shrub plants when they lay eggs. It has been established that the terms of cicada passage of the development phases depend on temperature and humidity.