柑桔锈螨种群密度简易估计法  

Easy Way for Estimating the Population of Citrus Rust Mite on Citrus.

作　　者：陈章宁[1] 陈铠[1] 刘建芳[1] 刘超[1] 嵇明福 罗跃进[2] 高保宗 

机构地区：[1]安徽省农科院植保研究所,合肥230031 [2]安庆市农科所,安庆246003

出　　处：《安徽农业科学》1993年第4期361-363,共3页Journal of Anhui Agricultural Sciences

摘　　要：本文根据Gerrard阈限密度法,对57组调查资料进行分析,建立了锈螨的经济预测模型: m=1.7479[-1n(1-P)]^(1.3994)式中m为虫口密度,P为有虫叶率。According to Gerrard's threshold density method,the total population density of the adult and nymph of citrus rust mites (phyllocoples obleivorus Ashmead) on citrus was estimated based on sampling data during 1991～ 1992. The model of Gerrard was determined: m = l. 7479[—In(l—P)]^(1.3994) where m is the density of citrus rust mite,and P is the frequency of leaf with this pest.

关 键 词：柑桔锈螨 种群 密度 

分 类 号：S436.661.2[农业科学—农业昆虫与害虫防治]