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用70%高巧(专性杀蚜剂)三个浓度防治棉蚜药效对比试验,药效期在20天,防效在96.5%以上、在生产上以1500倍液为最佳用量.
With 70% high (special aphides) three concentrations of cotton aphids control efficacy comparison test, the efficacy of 20 days, 96.5% or more in effect in the production of 1500 times the best dosage.