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进行2.5%高效氯氰菊酯.2.5%吡虫啉乳油防治油菜蚜虫田间药效试验,结果表明:该药剂对油菜蚜虫防效良好,发生程度中等推荐使用量为300～450 g/hm2(有效成分为15.0～22.5 g/hm2),发生程度中等偏重时推荐使用量为600 g/hm2(有效成分为30.0 g/hm2)。
2.5% beta-cypermethrin .2.5% imidacloprid EC was used to control rape aphid in the field. The results showed that the pesticide was effective against rape aphid and the medium recommended dosage was 300-450 g / hm2 (active ingredient: 15.0-22.5 g / hm2). The recommended dosage is 600 g / hm2 (the active ingredient is 30.0 g / hm2) when it is moderately heavy.