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通过１９９８ 年定点定期调查，发现玛纳斯河流域麦棉混作区农田各种生态环境中，５ 月份以苜蓿田、小麦田天敌数量最多，可达同期棉田天敌数量的５９３２ 和２６６５ 倍；棉田距麦田远近，直接影响棉田天敌的数量。与麦田相邻的棉田天敌数量明显增多，全年平均天敌数量是与麦田相距１０００ｍ 棉田天敌数量的２２２～６２５倍；６ 月份与麦田相邻的棉田益害比为１∶１１５３５。而与麦田相距愈远的棉田天敌数量愈少，益害比亦随之变小。这种差异以棉花蕾期和花期表现特别突出。就不同类群的天敌而言，麦棉距离对瓢虫的影响最大，蜘蛛次之。因此在麦棉混作区，实行害虫综合治理，应尽可能增加小麦的种植面积，提高蓄养天敌的能力，并应尽可能安排麦棉相邻或靠近，以增强天敌控制害虫的作用。
According to the periodic survey conducted in 1998, it was found that the natural enemies of alfalfa field and wheat field were the most in May-January in the agro-cotton mixed farming areas in Manas River Basin, reaching 5932 and 2665 of the natural enemies Times; cotton fields from the wheat field far and near, a direct impact on the number of natural enemies cotton. The number of natural enemies in cotton fields adjacent to the wheat field increased significantly. The average number of natural enemies in the whole year was 2.22-6.25 times of the number of natural enemies in the 1000m cotton field. In June, the ratio of the number of natural enemies adjacent to the wheat field was 1: 115. 35. The farther away from the wheat field, the smaller the number of natural enemies in the cotton fields, the less beneficial harm ratio will become smaller. This difference is particularly prominent in cotton buds and flowering. In terms of natural enemies of different groups, wheat and cotton have the greatest impact on ladybugs and spiders are the second. Therefore, in wheat-cotton mixed area, the implementation of comprehensive management of pests should be as much as possible to increase the planting area of wheat and enhance the ability to raise natural enemies, and should be arranged as close as possible to cotton or cotton in order to enhance the natural enemy control pests.