Abstract
Rapeseed occupies the first place among industrial crops in terms of oil content. Protection from harmful organisms plays an important role in the technology of rapeseed cultivation, since the quality and volume of products are significantly reduced due to the damage of crops by pests. Therefore, the purpose of the study is to identify the types of pests common in the fields of rapeseed of the Berik farm in the T. Ryskulov district of the Zhambyl region in 2022-2024 and to draw up protection measures. The biological features of the development of the main pests and the factors that reduce their numbers have been studied. Of the pests that live in the soil, rapeseed crops are affected by caterpillars and wireworms. Entomophages have been identified: ground beetles, staphylinids, soft-bodied and coccinellids. Ground beetles, soft-bodied and coccinellidae appear during budding. Chemical treatments for rapeseed cultivation are recommended only if the number of pests has exceeded the limits of economic harm. Field experiments on the use of chemicals and mineral fertilizers against rapeseed pests were conducted in the study area. The followingpreparations against cruciferous fleas were tested: Sumi-alpha, 5% K. E. (esfenvalerate, 0.3 l / ha), BI-58 K. E. (dimethoate, 0.8 l /ha), Achilles, K. E. (lambda-cyhalothrin, 0.2 l /ha). All tested preparations have shown high biological efficacy