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分析了云南松毛虫各虫态特点,提出了最实用的办法就是在云南松毛虫的蛹期进行调查,以蛹期的数量为基数对云南松毛虫翌年的发生趋势、发生范围、发生危害程度及发生期进行测报。
The characteristics of each insect of Yunnan pine caterpillars were analyzed. The most practical method was to investigate the pupae of the pine caterpillars of Yunnan. The number of pupae was taken as the base to analyze the occurrence, occurrence, Occurrence of the newspaper.