The ecological conditions related to seasonal population variation of cotton aphid,Aphis gossypii Glover Effects of tobacco plants inoculated by different viruses on development and reproduction of Myzus persicae Diameter-Age Bivariate Weibull Distribution Model for Moso Bamboo Forests in Zhejiang Province Reproductive characteristics of the green peach aphid from different regions of China The effects of host alteration on the population characteristics of Myzus persicae (Sulzer) Modeling Size-number Distributions of Seeds for Use in Soil Bank Studies Weibull model of species abundance distribution of Huodendron biaristatum community in Damingshan Nature Reserve