棉叶螨在转Bt基因抗虫棉的棉田动态分布  

Dynamic Distribution of Two Spotted Spider Mite in Transgenic Bt Insect-resistant Cotton Field

作　　者：徐文华[1] 陈建平[1] 刘标[2] 孟军[2] 方志翔[2] 

机构地区：[1]江苏沿海地区农业科学研究所,江苏盐城224002 [2]环境保护部南京环境科学研究所,江苏南京210014

出　　处：《江西农业学报》2011年第1期97-99,102,共4页Acta Agriculturae Jiangxi

基　　金：国家转基因生物新品种培育专项(2008ZX08013-001;2008ZX08012-005;2008ZX08012-004;2008ZX08011-002-08);国家公益性行业专项(200803011-7);中央级公益性科研院所基本科研业务专项(国87017);盐城市科技发展计划项目(YK2001149;YK2007042-7)

摘　　要：通过近2年的系统调查,明确了Bt棉处理棉叶螨的有螨株、红叶株、红叶数、有螨叶和成若螨数量始终高于常规棉对照,但差异均不显著;棉叶螨在在棉花全生育期的发生为害主要有2个时段,1个是在6月上中旬前茬夏熟作物成熟离田期,另1个是在7月底8月初秋熟玉米成熟离田期,两类棉田处理所表现的消长动态也基本相似。另外,棉花前茬茬口不同,棉叶螨的发生为害也有差异,空白茬口棉田的螨量与被害株始终低于蚕豆茬,趋势十分明显。Through recent two years systematical investigations on two spotted spider mite,it was clear that the plants with mite,plants with red leaf,the number of red leaf,leaves with mite and the number of adult and nymphal mite in the transgenic Bt cotton fields were always higher than those in the conventional cotton fields,but there were no significant differences.In the whole growth and developmental period of cotton,two spotted spider mite occurred mainly in the first twenty days of June and from the end of J...

关 键 词：棉叶螨 BT棉 棉田动态 分布 

分 类 号：S435.622.9[农业科学—农业昆虫与害虫防治]