FORMATION OF ENTOMOFAUNA IN THE SYSTEM OF SOWING COTTON-GRAIN ALTERNATIONS AND METHODS OF MANAGING THE NUMBER OF PESTS.
Authors: Botir Safarovich Baltaev
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In the article In these studies, it was established that in cotton agro phytocoenosis, pests can only be controlled by natural organic (agrotechnical, biological, etc.) methods under conditions when the ratio between phytophages and entomophagy is favorable for beneficial insects. It has been established that the cotton-grain crop rotation system leads to a natural reduction in pests. Especially in areas with cereals after cotton, the incidence of rust is 2-3 times lower, weed infestation is 3-4 times lower, and on cotton after cereals, a 3-4 times decrease in the main harmful pests and a decrease in the development of verticillium and fusarium wilt by 25 -thirty%. The results of the study showed that in the early stages of the development of aphids, thrips, and spider mites, in the prevention of pests, 75-80% of the area is treated with low-toxic complex insecticides with a width of 20-30 meters from the edge of the lateral planting method with biological and agrotechnical methods, good results were noted. Lateral tillage of the field and biological and agrotechnical control of residues reduced the infestation of cotton by aphids by 60.4%, tobacco thrips by 48.0%, cobwebby 39.2%. It is noted that weeds around the field in the system of cotton-grain crop rotation are a source of wintering and the formation of the composition of phytophages, in addition, their natural neighbors and other beneficial insects also serve, which play an important role in the formation of the cotton entomofauna and grain crops.