枣食芽象(虫甲)是枣树上的一种主要害虫。其又名枣飞象、小灰象(虫甲),俗名灰虎,属鞘翅目象(虫甲)科。该虫在吴堡县一年发生一代,以幼虫在土中越冬。4月上旬开始羽化(平均气温10℃左右),4月15日田间出现成虫,4月下旬为成虫盛发期。成虫寿命为20～30天,4月25日发现成虫交尾。5月12日幼虫开始落地入土。成虫在上午11时至下午2时气温较高时最活跃,在树干上来回爬行取食 Jujube bud like (insect) is a major pest on jujube. Its also known as flying jujube, small gray elephant (insect), common name Gray Tiger, is a Coleoptera (insects) Branch. The worm occurs in Wubei County a generation a year, with larvae in the soil overwintering. April emergence of eclosion (average temperature of about 10 ℃), April 15 adults appear in the field, late April adult worms. Adult life expectancy of 20 to 30 days, April 25 found adult mating. May 12 larvae began to fall into the soil. Adults at 11 am to 2 pm when the temperature is high, the most active crawling back and forth feeding on the trunk