几年来作者在省内主要菜区对疏菜害虫天敌进行了调查研究。现将结果整理如下: 一、田间蔬菜主要害虫天敌发生概况(一)寄生性天敌昆虫1.蚜虫类的天敌蚜虫类的天敌以菜蚜茧蜂Diaeretiella rapae Mintosh为主,春秋两季蚜虫大发生的季节,蚜茧蜂数 Over the past few years, the author conducted a survey on the natural enemies of vegetable pests in the main vegetable areas in the province. The results are summarized as follows: First, the main occurrence of vegetable pests natural enemies (a) parasitic natural enemies 1. Aphids natural enemies of aphids natural enemies of the food aphid Braconidae Diaeretiella rapae Mintosh mainly spring and autumn aphid big occurred Season, the number of aphids calluses