南疆棉田盲蝽类害虫种群数量动态  

Population dynamics of pest mirids in cotton filed in southern Xinjiang

作　　者：李号宾[1] 吴孔明[1] 徐遥[2] 杨秀荣[2] 姚举[2] 汪飞[2] 

机构地区：[1]中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室,北京100094 [2]新疆农业科学院植物保护研究所,乌鲁木齐830000

出　　处：《昆虫知识》2007年第2期219-222,共4页Entomological Knowledge

基　　金："十五"国家科技攻关计划课题"棉花重大病虫害可持续控制技术研究"(2004BA509B05);"棉区区域性有害生物生态调控技术研究"(2001BA507A-04-05)

摘　　要：2002 -2004年研究了南疆地区棉花盲蝽类害虫的发生和种群动态及棉花品种的影响。结果表明,危害棉花的盲蝽类害虫有牧草盲蝽Lygus pratensis（L.）和苜蓿盲蝽Adelphocoris lineolatus（Goeze） ,其中牧草盲蝽为主要为害种类,其数量占盲蝽类害虫的99.93 %。2002,2003和2004年,牧草盲蝽最高密度分别为56.0,105.3和53.7头/百株,而苜蓿盲蝽3年中最高密度〈0.1头/百株。对转基因抗虫棉GK19（表达Cry1A杀虫蛋白）、SGK321（表达Cry1A/CpTI杀虫蛋白）和普通棉花泗棉3号、石远321的研究表明2种盲蝽在不同品种上的季节性数量动态没有显著性差别。Population dynamics of pest mirids in cotton fields and influence from cotton-varieties were studied from 2002 to 2004 in southern Xinjiang, an intensive planting area of cotton in recent years in China. The results showed that there were 2 species of pest mirids in cotton fields, Lygua pratensis （L.） and Adelphocoris lineolatus （Goeze）, in which L. pratensis the dominant pest with a percentage of 99.93% in total number. The highest population densities of L. pratensh reached 56.0, 105.3, 53.7 individuals per 100 plants in 2002, 2003 and 2004, respectively, while the population density of A. lineolatus was less than 0.1 per 100 plants. The systematic investigation on population dynamics on different varieties of cotton, including two Bt cotton lines, GK19 （expressing CrylA insecticidal toxic protein） and SGK321 （expressing Cry1 A/CpTI insecticidal toxic proteins）, and two conventional cottons （Simian3 and Shiynan321 ）, indicated that there were no significant differences in pest mirid density among them.

关 键 词：棉花 牧草盲蝽 苜蓿盲蝽 种群动态 新疆 

分 类 号：S435.62[农业科学—农业昆虫与害虫防治]