论文部分内容阅读
用３ ％ 灭多多乳油２０００ ～３０００ 倍液防治苹果黄蚜具有良好的防治效果，速杀性好，持效期长，优于１０ ％ 蚜虱净４０００ 倍液。
With 3% methomyl 2000 ~ 3000 times the prevention and control of Apple yellow aphid has a good control effect, fast kill, long duration, better than 10% of the net imidacloprid 4000 times.