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采用不同用量的13%吡虫啉.毒死蜱乳油防治棉花蚜虫,结果表明,13%吡虫啉.毒死蜱乳油600 mL/hm2,825 mL/hm2,1050 mL/hm2对棉花蚜虫有较好的防治效果,并表现出良好的速效性和持效性。防效高于单独使用10%吡虫啉可湿性粉剂和60%毒死蜱乳油,生产上推广使用的适宜用量为600 mL/hm2。
The results showed that 13% imidacloprid and chlorpyrifos EC 600 mL / hm2, 825 mL / hm2 and 1050 mL / hm2 had a good control effect on cotton aphids, Good fast and effective. The anti-efficacy is higher than 10% imidacloprid wettable powder alone and 60% chlorpyrifos emulsifiable concentrate. The suitable dosage for promotion and use in production is 600 mL / hm2.