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通过对新疆阿克苏3类主栽模式核桃园系统调查发现:核桃黑斑蚜的天敌主要有草蛉、黑食蚜盲蝽、食蚜蝇、多异瓢虫和蜘蛛;间作作物对核桃黑斑蚜及其天敌的发生均有一定的影响;在核桃黑斑蚜发生初期,在核-麦-玉式核桃园中益害比最大,草蛉和蜘蛛发生量最多,种群数量分别为6.60头/百叶、0.20头/百叶,间作小麦最有利于增益控害,其次是间作棉花;在中后期,草蛉、多异瓢虫在核-棉式核桃园发生量较多,种群数量分别为6.01头/百叶、0.64头/百叶;黑食蚜盲蝽在核-麦-玉式核桃园中发生量较多,种群数量为1.08头/百叶;食蚜蝇和蜘蛛在无间作核桃园中的发生量较多,种群数量分别为0.51头/百叶、0.91头/百叶;但天敌不能阻止核桃黑斑蚜的大量发生,其种群数量在7月中旬达到高峰,平均种群数量达3000头/百叶以上。
Through the investigation of the three main types of walnut orchard in Aksu, Xinjiang, it was found that the main natural enemies of the black walnut aphid were grass weevil, Aphelenchoides aphid, hoverfly, ladybird and spider; And their natural enemies had a certain impact; in the early stage of the walnut black leaf aphid in the nuclear - wheat - jade-type walnut orchards in the most beneficial ratio, the largest amount of sand mites and spiders, the population were 6.60 head / leaf , 0.20 head / leaf, intercropping wheat was most beneficial to gain control, followed by intercropping cotton. In the latter part of the second generation, Louvre, 0.64 head / leaf; black aphid Apis mellifera in the nuclear - wheat - jade-type walnut orchard occurred more, the population is 1.08 head / leaf; hoverfly and spider in the indifferent for the occurrence of walnut orchard more And the populations were 0.51 head / leaf and 0.91 head / leaf respectively. However, the natural enemies could not stop the occurrence of the black walnut aphid. The population reached the peak in mid July with the average population of 3000 heads / leaf.