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白小食心虫[Spilonota albicana(Mo-tschulsky)]又名苹果自蠹蛾、桃白小卷蛾,是山楂的重要害虫之一。据1976—1980年调查,白小食心虫在辽宁、吉林、河北、河南、山东、山西等地均有发生,危害程度以辽宁为最重,在开原、岫岩、辽阳、鞍山等山楂老产区,由于第1代幼虫危害,严重者可减产50％左右;第2代危害的果实可高达70—80％,成为影响山楂生产的重要因素。自1976年以来,我们在辽宁省对白小食心虫的生活史及习性进行了观察和研究,发现山楂上白小食心虫的生活习性及蛹的形态等方面,与过去资料记载有所不同,现将观察的初步结果及防治意见整理如下。
Spodoptera insects [Spilonota albicana (Mo-tschulsky)], also known as apple self-codling moths, peach moth, is one of the important pests of hawthorn. According to the survey from 1976 to 1980, the white worm moth in Liaoning, Jilin, Hebei, Henan, Shandong, Shanxi and other places have occurred, the degree of harm to Liaoning as the most important, in Kaiyuan, Xiuyan, Liaoyang, Anshan and other hawthorn old District, due to the first generation of larvae hazards, severe cases can be reduced by about 50%; the second generation of harmful fruits up to 70-80%, an important factor affecting the production of hawthorn. Since 1976, we observed and studied the life history and habits of the white moth in Liaoning Province. We found that the life habits and the morphology of the pupae of hawthorn are similar to those in the past. It is now observed The preliminary results and prevention and treatment suggestions are as follows.