BIODIVERSITY OF BIOLOGICAL AGENTS OF DOMINANT LEAF-EATING PESTS NUT AND FRUIT FORESTS OF THE SOUTH KYRGYZSTAN

Abstract

The subject of this study is entomophages of the main pests of the nut and fruit forests of Kyrgyzstan. The work was carried out using generally accepted methods - mowing with a standard entomological net, reconnaissance surveys of stands. The study of the biology and ecology of insects was carried out according to the generally accepted methods of I.Y.Polyakov, V.F. Palia, K.K. Fasulat , I.V.Kozhanchikov, A.I.Ilyinsky. The species composition of entomophages was determined using the "Insect Determinant of the USSR" and the Cadastre of the Genetic Fund of Kyrgyzstan. Vol.3.The species diversity and bioecological features of entomophages of dominant leaf-eating pests such as Lymantria dispar L., Malacosoma parallela Stgr., Hyponomeuta malinella L. have been studied. The most common and an important role in the regulation of the number of these insect pests play: Echorista larwarum L., Anastatus japonicus Ashm, Colosoma sycophanta L., Coccinella septempunctata, Chrysopa Carnea Steph., Ooencyrtus kuwanae Howard, Ageniaspis fuscicollis Dalm. It has been shown that Colosoma sycophanta L. it eats not only caterpillars and pupae of the unpaired silkworm, but also the mountain ringed silkworm, moths, scoops and many other lepidoptera. The research results showed that after artificial introduction of Calosoma sycophanta L. nut and fruit forests into forestry, its number increased, and amounted from 30 to 40 individuals per 1 ha. Promising agents of biological control of the main pests in the conditions of nut and fruit forests are Calosoma sycophanta L., Anastatus japonicus Ashm, Ooencyrtus kuwanae Howard, Coccinella septempunctata, Chrysopa Carnea Steph., Ageniaspis fuscicollis Dalm., It is also necessary to improve the mass reproduction technique of these entophages in laboratory conditions.