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通过利用昆虫针扎死小幼虫和用蜜糖水诱杀成虫等人为控制措施，设置每个处理斑潜蝇虫量分别为 20、 100、 200、 300、 400、 600头，以此观察美洲斑潜蝇不同虫口密度对黄瓜产量的影响及损失。结果表明，在控制虫口密度范围内，其对黄瓜造成的产量损失率为 0.51％～ 19.20％，并以此测算出在当地生产条件下，美洲斑潜蝇的防治指标为百株虫量 1 050～ 1 190头。
Through the artificial control measures such as killing small larvae with insect needles and trapping adults with honey syrup, the number of latent insects in each treatment was set at 20, 100, 200, 300, 400 and 600, respectively, Effect of different insect population density on cucumber yield and its loss. The results showed that in the control of population density range, the cucumber yield loss rate of 0.51% ~ 19.20%, and thus calculated under the local production conditions, the control index of the leaf miner americana is 100 strains of insect population 1 050 ~ 190 heads.