嘧菌酯·苯醚甲环唑复配剂对稻瘟病和水稻纹枯病的防治效果

Field Efficacy of Mixture of Azoxystrobin and Difenoconazole against Rice Blast and Rice Sheath Blight

[目的]筛选一种双重防治稻瘟病和水稻纹枯病的安全、高效、经济的替代药剂。[方法]通过田间药效试验研究嘧菌酯和苯醚甲环唑复配剂对稻瘟病和水稻纹枯病的防治效果。[结果]相比常用药剂75%肟菌·戊唑醇WG和20%三环唑WP,20%嘧菌酯和12.5%苯醚甲环唑混配剂的防治效果增加10%左右。[结论]嘧菌酯和苯醚甲环唑复配剂安全性好、防效高,可推广示范,建议使用剂量为750 m L/hm^2。

[Objective] The aim was to screen out a safe,efficient and economic alternative agent for rice blast and rice sheath blight. [Method] We studied the control effect of the mixture of azoxystrobin and difenoconazole on rice blast and rice sheath blight through field efficacy test. [Result] Comparing with common drugs like 75% oxime bacteria and tebuconazole WG and 20% tricyclazole WP,the control effect of the mixture of 20% azoxystrobin and 12. 5% difenoconazole was better,and it could increase production by about 10%. [Conclusion] With the advantages of good safety and control effect,the mixture of azoxystrobin and difenoconazole could be generalized in field,and the propositional using dosage was 750 m L/hm^2.