近年来我省许多公社都开展了病虫害的预测预报工作。我们从收到的“病虫情报”、“植保动态”等植保资料中发现一个问题,就是对昆虫世代的划分很不统一。有的以当年始见成虫产下的卵为起点,即个体发育过程是卵→幼虫→蛹→成虫;有的以当年始见成虫为起点,把个体发育过程搞成成虫→卵→幼虫→蛹;还有的把当年始见的幼虫或蛹划到第一代去。这就造成同一昆虫的世代混乱,给虫情分析、资料整理和虫害测报造成困难。 In recent years, many communes in our province have carried out prediction and forecast work on pests and diseases. One problem we found in plant protection information such as Pest and Insect Information, Plant Protection Dynamics, etc., is that the division of insect generations is not uniform. Some started to see the eggs laid by the adult as a starting point, that is, the process of individual development is eggs → larvae → pupae → adults; some started to see adults that year as a starting point, the individual development process into adults → eggs → larvae → pupae ; And some larvae or pupae that started to be planted to the first generation. This will result in the same generation of insects chaos, insect analysis, data management and pest reporting difficulties.