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选取7种含有不同有效成分的杀虫剂,对水稻稻飞虱进行了田间防效试验。结果表明:5%啶虫脒微乳剂、25%速灭威WP、50%吡蚜酮WG和75%噻嗪酮WP在高、低2种用量下,防治效果都超过80%,其中防效最低的50%吡蚜酮WG在药后3d防效为83.49%。20%仲丁威微乳剂、600g/L吡虫啉悬浮剂和25%噻嗪酮·异丙威WP在高、低用量下,药后3～7d的防治效果均在90%以上,其中以25%噻嗪酮·异丙威WP562.5g/hm2防效最高;且各药剂较高浓度的防效都极显著高于较低浓度的,特别是5%啶虫脒微乳剂36g/hm2药后的3～7d的防效比27g/hm2的高4.76和4.11个百分点。可见7种药剂对水稻稻飞虱均有较好的防治效果,且对水稻的安全性较好,在生产上可轮换使用。
Seven kinds of insecticides with different active ingredients were selected to conduct field control experiments on rice planthoppers. The results showed that the control effect of 5% acetamiprid micro-emulsion, 25% methotrexate WP, 50% pymetrozine WG and 75% buprofezin WP were more than 80% The lowest 50% pymetrozine WG anti-3d efficacy was 83.49%. The control effects of 20% stilbazol microemulsion, 600g / L imidacloprid suspension and 25% buprofezin and isoprocarb WP were above 90% at 3 ~ 7d after high dose and low dose with 25% Buprofezin and ipvibrio WP562.5g / hm2 had the highest control efficacy. The control efficacy of higher concentrations of each agent was significantly higher than that of lower concentrations, especially after the 5% acetamiprid microemulsion 36g / hm2 The control efficiency of 3 ~ 7d was 4.76 and 4.11 percentage points higher than that of 27g / hm2. It can be seen that seven kinds of medicaments have good control effects on rice planthoppers, and have good safety to rice and can be used in rotation in production.