1974年以来,示范推广了以利用七星瓢虫(Coccinella septempunctata L.)治蚜为主的棉虫综合防治技术,全区综防面积从1975年的近万亩发展到近年来的约90万亩;植保投资一般已由每亩七八元下降到二、三元,避免或减轻了人畜中毒及环境污染。本文着重报道七星瓢虫在棉虫综防中控制棉蚜的作用,以及棉田天敌群体得到的有效保护。 Since 1974, the demonstration popularized the integrated control of cotton insects using the aphid-based ladybug (Coccinella septempunctata L.). The area under control has grown from nearly 10,000 mu in 1975 to about 900,000 mu in recent years ; Plant protection investment has generally dropped from seven or eight yuan per mu to two or three yuan to avoid or reduce the human and animal poisoning and environmental pollution. This article focuses on the report of the role of ladybird ladybug in the control of cotton aphids in the control of cotton aphids, as well as effective protection of natural enemy populations in cotton.