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从1993～1995年观察结果看，太原地区梨大食心虫转芽期为4月7～24日，处于梨树梨芽膨大期。随气温不断上升，转芽率也递增。转果期为5月23日至6月26日，梨果脱萼期幼虫出现转果。针对发生特点，提出“以转芽期防治为主，转果期防治为辅”的防治策略。
From 1993 to 1995, the observation results show that the pear rootworm Taiyuan pear turnip April 7 to 24, pear pear bud in the expansion period. With the rising temperature, turn bud rate is also increasing. Transfer fruit period is May 23 to June 26, pear off calyx larvae appear turnip. According to the characteristics of occurrence, put forward the prevention and cure strategy of “taking prevention and control as the main stage of turnip and supplemented by prevention and control of turnip period”.