论文部分内容阅读
为筛选出高效、低毒、低残留的有效药剂,进行了氰虫·毒死蜱等药剂防治稻纵卷叶螟田间药效及应用技术探索试验,结果表明,每667m2用36%氰虫·毒死蜱SE120mL和5%甲胺基阿维菌素苯甲酸盐WG30mL对稻纵卷叶螟速效性好、持效期长;每667m2用10%阿维·氟酰胺SC30mL速效性不是很理想,但药后8d左右防效迅速上升且持效期长;每667m2用5%阿维菌素EC30mL和5%甲胺基阿维菌素苯甲酸盐EC30mL速效性较好、持效期较差。因此生产上使用时,应根据稻纵卷叶螟发生实际情况,合理选择上述药剂,如田间虫苞较多时,应优先选择速效性好的药剂。上述药剂要交替使用,以延缓或防止抗药性的产生。
To screen efficient, low toxicity, low residual effective agents, cypermethrin, chlorpyrifos and other agents to prevent and control of rice leafroller field efficacy and application of technology to explore the test results showed that each 367m2 with Cymbalta 36% chlorpyrifos SE120mL And 5% emamectin benzoate WG30mL had a good fast-acting and long-lasting effect on C. medinalis; the fast-acting effect of 10% Aviclovir SC30mL per 667m2 was not very satisfactory, The control efficacy rose rapidly and persisted for a long time on the 8th day. The 5-avermectin EC30mL and 5% emamectin benzoate EC30mL per 667m2 had better fast-acting effect and poor retention-duration. Therefore, the use of production, should be based on the actual situation of rice leaf roller occurs, a reasonable choice of the above agents, such as field insect bract more should be given priority to quick-acting agents. The above agents should be used alternately to delay or prevent the emergence of drug resistance.