苹果绵蚜的发生规律及其防治指标  

Population dynamic of Eriosoma Lanigerum and its damage to apple trees

作　　者：谭挺[1] 龚声信 赵雪晴 李向永[1] 石安宪 李迅东[1] 赵高慧 张龙[3] 谌爱东[1] 

机构地区：[1]云南省农科院农业环境资源研究所,云南昆明650205 [2]昭通市植保植检站,云南昭通657000 [3]中国农业大学农学与生物技术学院,北京100091

出　　处：《云南大学学报（自然科学版）》2008年第S1期94-99,111,共7页Journal of Yunnan University(Natural Sciences Edition)

基　　金：云南省省院省校科技合作项目资助(2002FCBFB01K001)

摘　　要：1月中下旬第1代苹果绵蚜若蚜开始活动,2月下旬~3月田间种群数量开始缓慢上升,6月下旬~7月中旬进入快速增长期,高峰期一直持续到11月份上旬,之后逐渐下降.全年呈现1个明显高峰期.全年各龄蚜均有发生,第1龄若蚜、第2龄若蚜、第3龄若蚜、第4龄若蚜和成蚜各自占全年总虫量的比例分别为6.92%,40.12%,22.9%,19.01%和11.05%.其中第2龄若蚜所占比例相对较高,第1龄若蚜较低.苹果绵蚜(X)对红富士(Y1)与金帅品种(Y2)的产量损失模型:Y1=80.3472-0.0488X,Y2=77.9892-0.073X.初步制定防治指标:7蚜群/株(红富士品种),11蚜群/株(金帅品种).The first generation instars start to move on the middle and late of January,the aphid population density gradually grew from late February or early March,in late June and early July reached highest peak,then decreased and stopped by early November.In winter,the numbers of colony or aphid per colony were decreased 31.2% and 67.3% on the apple trees,respectively,compared with those in peak.The age structure of the aphid population varied with time and year,but the second instar is highest among all developme...

关 键 词：苹果绵蚜 发生规律 防治指标 

分 类 号：S436.611[农业科学—农业昆虫与害虫防治]