夏大豆生育中、后期常遭受豆天蛾Clanis bilineata tsingtauica Wall.、银纹夜蛾Argyrogzamma agnata(stgr).、大豆毒蛾Cituna locuples Walker等多种食叶害虫的为害而影响产量。大豆对食叶害虫的为害有一定的耐受性和补偿能力,但在一定的条件下能忍受多大的叶面积损失,是确定大豆食叶害虫防治指标的重要依据。为此,我们根据夏大豆食叶害虫的为害特点,进行了人工去叶模拟研究。 Summer soybean in the late, often suffer from the bean moth Clanis bilineata tsingtauica Wall., Spodoptera litura Argyrogzamma agnata (stgr)., Soybean poison moth Cituna locuples Walker and other leaf damage pests and affect the yield. Soybean has certain tolerance and compensatory ability to leaf pests, but how much the leaf area can be endured under certain conditions is an important basis for determining soybean leaf pest control index. To this end, we based on the characteristics of summer soybean leaf pests damage, artificial leaf removal simulation study.