论文部分内容阅读
棉蚜是新疆棉区棉花最重要的害虫 ;1994年 7～ 8月棉蚜暴发 ,棉花减产高达 30 %以上 ,充分保护、利用天敌是棉蚜综合防治中的关键措施 ,科学又简便的评价天敌控蚜效能 ,是进行棉蚜生物防治的基础。1996～ 1997年。在研究棉蚜常见天敌日食蚜量的基础上 ,进行棉蚜天敌综合效能评价 ,并将棉蚜天敌分为 4类 ,为棉蚜天敌的量化评价及普及生物防治知识 ,指导棉蚜的综合防治提供了理论依据 ,具有重要实践价值。
Cotton aphid is the most important pest of cotton in Xinjiang cotton area. Cotton aphid outbreak occurred from July to August in 1994, the yield of cotton was as high as 30% or more. The natural enemies were fully protected and the natural enemies were the key measures in cotton aphid comprehensive control. Control aphid efficacy, is the basis for the biological control of cotton aphid. 1996 to 1997. Based on the study of the natural aphids in cotton aphids, the comprehensive evaluation of natural enemies of cotton aphids was carried out. The natural enemies of cotton aphids were divided into 4 groups, which were the quantitative evaluation of natural enemies of cotton aphid and the popularization of biological control knowledge to guide the synthesis of cotton aphid Prevention provides a theoretical basis, with important practical value.