白小食心虫是山楂的主要害虫之一.在辽宁、吉林、河北、河南、山东均有发生,以辽宁为害最重.有些地区第一代为害竟使山楂减产50%,第二代为害果实被害率达70～80%.从1976年以来,我们在辽宁对“白小”生活习性进行了观察,发现其生活史与国内记载有很大差异. White moth is one of the main pests of hawthorn in Liaoning, Jilin, Hebei, Henan, Shandong have occurred, the heaviest harm to Liaoning .In some areas the first generation of hawthorn actually reduced the production actually reduced by 50%, the second generation of victims of fruit damage The rate of 70-80% since 1976, we in Liaoning “white” living habits were observed and found that the life history and domestic records are very different.