苹果采收前,园内常发生一种啃食苹果的甲虫,叫白星金龟子或叫白纹金龟子。该虫成虫体长约18～24mm,宽约10～14mm,椭圆形,全身黑铜色,带有绿色或紫色光泽,体被有十几个不规则的白斑。成虫喜欢咬食苹果芽、叶和果实,尤其是更喜欢为害病虫伤斑果和成熟的、甜度大的果实,成虫群集为 Before the apple is harvested, a beetle that grazes apples often occurs in the park, called the white-headed beetle or white-backed beetle. The insect adult body length of about 18 ~ 24mm, width of 10 ~ 14mm, oval, black copper body, with a green or purple luster, the body was a dozen irregular white spots. Adults like to bite apples buds, leaves and fruits, especially those who prefer to pest-borne and mature, sweetness of the fruit, the adult population is