棉花苗期棉叶螨(Tetranychus cinnabarinus)种群密度估计方法

Estimation of Population Density of the Carmine Spider Mite(Tetranychus cinnabarinus)in Cotton Field

通过对23块棉田大样本调查数据的分析,提出了基于螨株率(Pi)、红叶率(Pj)估计棉叶螨种群密度的数学模型。并利用 Kuno(1969) ,Green(1970) ,Willson(1983) 模型建立了棉叶螨序贯抽样式.

Based on the analyses of 23 samples selected from cotton field in 1988,three models were developed for estimating the population density of the carmine spider mite.The sequential sampling techniques presented by Kuno(1969) , Green(1970) and willson(1983) also were investigated in this paper.