【摘要】 通过 4 .6 5 %高氯·氟啶脲乳油对菜青虫的田间药效试验 ,结果表明 :4 .6 5 %高氯·氟啶脲乳油在药后第 1、3和 7d防效逐渐提高 ,至药后第 7d防效最好 ,6 0ml/ 6 6 7m2 最高防效为 96 76 % ,30ml/ 6 6 7m2 的最高防效为 93.5 5 % ,它兼有了高效氯氰菊酯的速效和氟啶脲的持效期长的优点。可以作为当前防治菜青虫的选择药剂更多还原

【Abstract】 The effects of 4.65% mixed beta-cypermethrin with chlorfluazuron was evaluated against Pieris rapae in field trials.The results showed that 4.65% mixed insecticide had good effects for controlling Pieris rapae,and the effects was improved as the days went by,the mortality was 96.76%,93.55% with 60ml/mu,30ml/mu after 7 days inspectively.It has beta-cypermethrin’s speedy effect and chlorfluazuron’s persistent effect.The pesticide mentioned above is excellent insecticide for controlling Pieris rapae Linn.更多还原