几种药剂防治二斑叶螨试验

Control effect of several pesticides on Tetranychus urticae Koch

应用10%阿维菌素·哒螨灵EC、1.2%阿维菌素·高效氯氰菊酯EC、1.8%阿维菌素EC、10%哒螨灵EC、0.6%印楝素·苦参碱EC、2.5%高效氯氰菊酯EC、40%水胺硫磷EC7种药剂处理防治二斑叶螨,结果表明,10%阿维菌素·哒螨灵EC40μg/mL、1.2%阿维菌素·高效氯氰菊酯EC4.8μg/mL、1.8%阿维菌素EC4.5μg/mL、10%哒螨灵EC40μg/mL、0.6%印楝素·苦参碱EC6μg/mL5种药剂处理喷药后7d防效达到最高,分别为100%、99.3%、95.6%、95.9%、94.3%,药剂处理后20d防效分别为98.2%、95.8%、92.9%、93.4%、89.8%,以上5种药剂防治二斑叶螨速效性好,持效期长,防效高,可以在生产上大面积推广应用。

Seven pesticides, 10% abamectin.pyridaben EC, 1.2% abamectin.alphamethrin EC, 1.8% abamectin EC, 10% pyridaben EC, 0.6% azadirachtin-matrine EC, 2.5% beta-cypermethrin and 40% isocarbophos were applied to against Tetranychus urticae Koch. The results indicated that five treatments got the best effects after 7 days, 98.2%, 95.8%, 92.9%, 93.4%, 89.8% which corresponded to 10% abamectin · pyridaben EC 40mg/L, 1.2% abamectin , alphamethrin EC 4.Smg/L, 1.8% abamectin EC 4.Smg/L, 10% pyridaben EC 40mg/L, 0.6% azadirachtin · matrine EC 6mg/L respectively. And the effects were 98.2%, 95.8%, 92.9%, 93.4%, 89.8% after 20 days. The above five pesticides can be generalized on practice for its good quickly available, long period of validity and high effects.