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粘虫(MythimnaseparataWalker)在云南省全年可发生四次危害,其中以第二代最为严重,在决定本省第二代粘虫发生程度的诸因素中,其第一代蛾量具有相当重要的作用。根据昆明动物研究所等单位1975～1979年组织的协作调查资料,本省二代常发区的第一代粘蛾量,与本省西、南边缘地带越冬幼虫和蛹的密度呈现一定相应关系。以此作为本省二代发生区第一代蛾量中长期预测的一个依据。
Mythimna palpa Walker can occur four times a year in Yunnan Province, of which the second generation is the most serious. The first generation of moths plays a very important role in determining the second generation Mythimna separata in the province. . According to the collaborative survey conducted by the Kunming Institute of Zoology and other institutes from 1975 to 1979, the first-generation moth population of the second-generation populated areas in the province showed a certain relationship with the density of overwintering larvae and pupae in the western and southern fringes of the province. As a basis for the medium and long-term forecast of the first generation of moths in the second and third generation of the province.