论文部分内容阅读
8种杀虫剂对稻纵卷叶螟的田间药效试验表明:20 d后,1.8%阿维菌素乳油对稻纵卷叶螟的防治效果达90.52%,20%三唑磷的防治效果为40.12%,18%杀虫双的防治效果为67.77%;阿维菌素乳油比杀虫双和三唑磷防效分别提高22.75和50.4个百分点,且防效时间长、经济省力、无药害现象发生,在水稻上使用安全。
8 kinds of pesticides on the rice leaf roller effect of the test showed that: 20 d, 1.8% avermectin EC on rice leaf roller control effect of 90.52%, 20% of the control effect of triazophos Was 40.12%. The prevention and control effect of 18% insecticidal double was 67.77%. The avermectin EC was increased by 22.75 and 50.4% respectively than the insecticidal bis and triazophos, and the control effect was long, labor-saving and drug-free Harm the phenomenon occurs, the use of rice on the safe.