敌百虫是果树上常用的一种杀虫剂,在应用过程中发现,它除具有杀虫作用外,还具有疏除苹果幼果的作用。为探讨其能否作为兼治害虫的疏除剂,我们在几年小型试验取得成效的基础上,于1983～1986年对其疏除效应及兼治卷叶虫喷布的适宜时期与浓度进行了系统试验研究。现将试验结果报告如下。 Trichlorfon is a commonly used insecticide on fruit trees, found in the application process, in addition to its insecticidal effect, but also with the role of thinning apple young fruit. In order to explore whether it can be used as a pest control agent for controlling pests, based on the results of years of small-scale experiments, we conducted a systematic study on the effects of its sparse effect and the appropriate period and concentration of spinosad in 1983 ~ 1986 Experimental Research. The test results are reported below.