保护利用天敌发展生态农业--开展以保护天敌为主的棉铃虫综合防治

Preserving and Utilizing Natural Enemy for Ecoagricultural Development--Integrated Control of Cotton bollworm by Conservation and Encouragement of Natural Enemies

摘要: 80年代末期，农药用量剧增，摧毁天敌，破坏了生态平衡，是造成90年代黄河流域棉区棉铃虫特大暴发的主要原因。天敌资源和水、土、光、热、气一样是农业自然资源的一部分，将保护利用自然天敌纳入农业发展战略，应用生态学和系统工程的理论与方法研究发展控害保益生态技术，在棉花、小麦等多种作物生态区内，因地制宜协调应用各种优化生态技术，尽量减少农药用量，组装以控制棉铃虫为重点的多种作物害虫危害的农业生态工程，建立大面积综合防治示范区暨生态农业县，向两高一优的目标迈进，能经济、安全地控制害虫危害。

Abstract: Since 1980s the food condition and inhabitation environment of cotton bollworm have been changed by the changing of cultivation system of crops.The main reason for the outbreak of cotton bollworm in the Yellow River Basin was the the destroy of ecological balance.Natural enemy,the same as water,soil,light,air,and heat,is part of agro-natural resources.Then is was suggested that the conservation and encouragement of natural enemies be included in the major projects of ecoagricultural developing strategies.The studies of key control techniques and basic theory should be strengthened up.