不同抗虫棉品系对棉田害虫与天敌群落的影响  

Preliminary Studies on Effects of Transgenic Cotton Varieties on Composition of Insect Community

作　　者：柏立新[1] 张龙娃[1] 陈小波[2] 冯汉金 顾国华[2] 邹宗晴 束春娥[1] 

机构地区：[1]江苏省农科院植保所,南京210014 [2]江苏沿江地区农科所,如皋226541 [3]江苏大丰棉花原种场,大丰224100

出　　处：《中国生物防治》2002年第3期115-119,共5页Chinese Journal of Biological Control

基　　金：国家科委"十.五"攻关课题部分内容;江苏省"十.五"攻关课题 (BE2 0 0 1342 )研究内容

摘　　要：本文就不同转基因抗虫棉新品系对棉田害虫及其天敌群落的影响进行了研究。结果表明 ,4个不同抗虫保铃棉品系自控区上发生的害虫与天敌种类、害虫总数与对照品种相比 ,其差异均不显著。棉铃虫发生为主的大丰棉区 ,抗虫棉上棉铃虫数量都较对照显著减少 ,其中高抗品系上减少更多。说明抗虫棉对棉铃虫有明显的抗性。以棉蚜发生为主的如皋棉区 ,所有抗虫棉品系上棉蚜均大量发生 ,而化学防治的对照区则虫口下降。鉴于棉铃虫和棉蚜均为我国棉花上的重要害虫 ,抗虫棉上棉蚜的危害加重应引起重视。Studies were carried out on the effect of transgenic cotton on insect pests and their natural enemies in Dafeng and Rugao cotton areas, Jiangsu. The results showed that no marked difference was found between 4 transgenic cotton varieties and traditional variety check in pests species and natural enemies. In Dafeng experiment the population of cotton bullworm on transgenic cotton was significantly lower than that of the check, indicating that transgenic cotton was highly resistant to cotton bullworms. But in Rugao region cotton aphid was the main pest. The population of cotton aphid on transgenic cotton was very high and chemical control was necessary. As both bullworm and aphid are important pests in many cotton growing regions further research works should be done to improve the control measures against these pests.

关 键 词：抗虫棉品系 棉田 害虫 天敌群落 

分 类 号：S435.622[农业科学—农业昆虫与害虫防治] S476[农业科学—植物保护]