梨大食心虫是危害梨芽及梨果的主要害虫之一。关于梨大食心虫的发生规律及防治方法已有报导。据报导已基本明确了越冬幼虫出蛰开始至进入越冬为止的发生消长规律,并提出了用E—605防治出蛰与转果的越冬幼虫、卵及初孵幼虫的防治措施。据报导越冬幼虫破茧期用敌敌畏防治比出蛰期用E—605防治效果更好。1976～1978年我 Pear Gourd is harmful to pear buds and pear one of the major pests. Pear on the occurrence of the law and control methods have been reported. It has been reported that the growth and decline of overwintering larvae from the start of the sting to the end of winter have been basically clarified and the prevention and treatment measures of overwintering larvae, eggs and newly hatched larvae using the E-605 are proposed. It is reported that the overwintering larvae cocoon phase control with dichlorvos than the sting out with E-605 control better. 1976 ~ 1978 me