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1 前言马铃薯瓢虫(Henosepilachna Vigintioctoma culata Motsch)曾是我国解放初期的重要害虫,建国初期的农业发展纲要曾将其列为主要防除对象(列崇乐,1950)。80年代以后,随着联产承包责任制的推行,我国北方马铃薯面积迅速扩大,并广泛采用马铃薯与其他秋作物间作的耕作方式,为该虫终年提供了充足食料和合适越冬场所,以至80年代中期以后再度猖獗为害(晋东南协作组,1984;鲁守年等,1988;姚小玲等,1992)。日本曾对该虫不同种群的寄主适应性进行过一些研究
1 Introduction The potato pest (Henosepilachna Vigintioctoma culata Motsch) was an important pest in the early liberation of our country. The agricultural development program of the early days of the People’s Republic of China once listed it as the main prevention and control object (Chongzangle, 1950). Since the 1980s, with the implementation of the contract responsibility system for production by the contract of production, the area of potatoes in the north of our country has rapidly expanded. The tillage practices of intercropping potatoes with other autumn crops are widely adopted, providing enough foodstuffs and suitable winter sites throughout the year, The rampant again after the mid-term damage (Jin southeast cooperative group, 1984; Lv Shounian et al., 1988; Yao Xiaoling et al., 1992). Japan has conducted some research on host adaptability of different populations of this insect