50己唑醇水分散粒剂防治鲁南地区水稻纹枯病药效研究

摘要

Efficacy study of 50% Hexaconazole WDG(water dispersible granules)against rice sheath blight were carried on. The results indicated relativity good control of rice sheath blight. The control efficiency in Hectares with the pharmaceutical 90 g/hm2,120 g/hm2,150 g/hm2 on rice sheath blight was 70.67 % ,72.62% and 74.49% ,respectively.While ,it had good safety.It suggested that the dosage should be 120-150 g/hm2.Sprayiag 50% Hexaconazole WDG (water dispersible granules) twice at seven-clay interval was appropriate.%进行50%己唑醇水分散粒剂防治水稻纹枯病田间药效试验,结果表明：50%己唑醇水分散粒剂对水稻纹枯病具有很好的防治效果,喷施剂量为90、120、150g/hm2对水稻纹枯病防效分别为70.67%、72.62%、74.49%,且安全性较好。在实际生产中建议用药量120～150g/hm2,间隔7d喷1次,连喷2次为宜。