建议应用种群的观点研究昆虫和植病郭士英（西北农业大学陕西杨陵７１２１００）就我接触和涉猎到的国内关于昆虫和植病的研究工作和论文，虽然不能说全部，但是基本上有一个共性特点，就是有意或无意从纯系个体或统一种群的观点出发，进行昆虫或植病的研究。比如昆虫分类... Proposed application of population point of view to study insects and plant disease GUO Shi-ying (Northwest Agricultural University, Yangling, Shaanxi 712100, China) The research work and papers on insects and plant diseases that I contacted and covered in China, although not all, basically have a common feature , Is the intentional or unintentional study of insects or plant diseases from the point of view of pure lines or uniform populations. Such as insect classification ...