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[Objective] The paper was to study the population dynamics and agent control effect against Chionaspis subcorticalis Green. [Method] The population dynamics of C. subcorticalis in Ganzhuang of Yuanjiang County in Yunnan Province were investigated, 750 and 1 500 times liquid of buprofezin and 1 000 times liquid of methidathion were used to control C. subcorticalis. [Result] It was the main spawning period of C. subcorticalis in Ganzhuang from the end of March to the middle of April, 1 000 times liquid of methidathion had the best integrated control effect against C. subcorticalis. [Conclusion] The proper control period against C. subcorticalis in Ganzhuang was from the end of March to the middle of April, and methidathion could be selected to control the pest.
[Objective] The paper was to study the population dynamics and agent control effect against Chionaspis subcorticalis Green. [Method] The population dynamics of C. subcorticalis in Ganzhuang of Yuanjiang County in Yunnan Province were investigated, 750 and 1 500 times liquid of buprofezin and 1 000 times liquid of methidath were used to control C. subcorticalis. [Result] It was the main spawning period of C. subcorticalis in Ganzhuang from the end of March to the middle of April, 1000 times liquid of methidath had the best integrated control effect against C. subcorticalis. [Conclusion] The proper control period against C. subcorticalis in Ganzhuang was from the end of March to the middle of April, and methidathion could be selected to control the pest.