Amirkulov, Otabek2025-12-192025-12-192024-06-252832-1766https://dspace.kstu.uz/xmlui/handle/123456789/4491Today, there is an increase in the density and harmfulness of aphid pests at different stages of development of grain crops in irrigated and rain-fed grain fields of the republic. Aphids are one of the most dangerous and widespread small micro pests of grain crops. It is difficult for us to chemically control these pests and maintain wheat yield and grain quality, so it is important to know exactly when this pest will cause more damage to wheat.According to the research in the article, it is indicated at what stage measures should be taken to protect plants from pests, given that aphids cause more damage to the tillering of wheat in grain fields.enWheat, aphid, harm, density, grains, yield, plants, ear, development, waste, sucking, sign, biometric, phenological, drug.Article