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为探索7.5%啶虫脒.高效氯氟氰乳油对棉花蚜虫的防治效果,进行了田间药效试验,结果表明:用药后1 d 7.5%啶虫脒.高效氯氟氰乳油150.0 g/hm2、187.5 g/hm2、225.0 g/hm2对棉花蚜虫的防效分别为71.23%、84.75%和88.91%;用药后3 d,防效分别为76.74%、93.15%和94.39%;用药后7 d,防效分别为82.30%、94.87%和96.79%。其中,187.5 g/hm2和225.0 g/hm2的用药量对棉花蚜虫具有优良的防效。
In order to explore the control effect of 7.5% acetamiprid and its effect on the prevention and control of cotton aphid, a field efficacy test was conducted. The results showed that 7.5% Acetamiprid, 150.0 g / hm2, The control effects of 187.5 g / hm2 and 225.0 g / hm2 on cotton aphids were 71.23%, 84.75% and 88.91%, respectively. The control effects were 76.74%, 93.15% and 94.39% on the 3rd day after treatment, respectively. Effectiveness was 82.30%, 94.87% and 96.79% respectively. Among them, the dosage of 187.5 g / hm2 and 225.0 g / hm2 had a good control effect on cotton aphids.