杏核蜂属膜翅目、小蜂总科、肩广小峰科,种名Eurytomus sp.。因杏果受害而脱落,且幼虫白色似蛆,京郊果农称为落果蛆或杏果蛆。据文献记载,此蜂分布甚广,在国内产杏地区几乎都有发生;日本亦有发生。我们在京郊调查,此蜂除为害杏外,尚未发现为害其他果实,但文献有为害桃的记载。 为害状况 在京郊观察,杏树落果一般分为两个时期,前期在落花后十几日(约5月初)此时多因果实太多或营养不够而自然脱落,故称为风化落果。自5 Apis mellifera Hymenoptera, the small bee common branch, Shou Guang Xiaofei Branch, species name Eurytomus sp .. Due to apricot damage and fall off, and white larvae maggots, fruit farmers in Beijing suburbs called fruit falling or maggot apricot fruit. According to the literature, this bee is widely distributed in almost all areas of the country where apricot is produced; Japan has also occurred. We are investigating in the suburbs of Beijing. This bee is not harmful to other fruits but harmful to the peach. Victims of the situation observed in the suburbs of Beijing, apricot tree fallen fruit is generally divided into two periods, the early fall in more than a dozen days (about early May) at this time due to too much fruit or nutrition is not enough and naturally fall off, it is called weathered fruit. Since 5