落叶松是城市绿化主要树种之一,由于生长快,外形美观,易种植,得到人们喜爱,但它在生长过程中常常遭受虫害。在大面积人工纯林内经常遭受松毛虫害,这是众所周知的,可是在城市环境条件下,在小面积的与其他树种以各种方式混交的落叶松林内有什么主要害虫,我们并不十分清楚。1982—1983年,我们在哈尔滨市近郊黑龙江省 Larix is ​​one of the main tree species in urban afforestation. Due to its rapid growth, beautiful appearance and easy planting, it is loved by people, but it is often subjected to pests during its growth. It is well known that pine caterpillars are most often encountered in large areas of artificial pure forests, but we do not know very well what the major pests are in the small area of ​​larch forests mixed in various ways with other species under urban environmental conditions . From 1982 to 1983, we were in Heilongjiang Province, near the city of Harbin