30%己唑醇SC防治稻曲病的田间药效试验

Drug efficacy of 30% hexaconazole SC on controling rice false smut in field condition

进行30%己唑醇SC不同剂量处理防治水稻稻曲病的田间药效试验,结果表明:30%己唑醇SC与对照药剂43%戊唑醇SC两种药剂对稻曲病均有较好的防治效果,病穗率平均防效64.10%～78.21%,各处理间防效未达显著差异水平;百穗病粒率平均防效为71.11%～84.44%。建议两种药剂交替使用。

Drug efficacy of 30% hexaconazole SC on controling rice false smut was carrying on in field condition,the results showed that both 30% hexaconazole SC and 43% tebuconazole SC,as Ck drug,have better drug efficacy on controlling rice false smut,the controling rate of diseased panicle was 64.10%-78.21%,and showed not significant differences among different treatments.The controling efficacy of diseased grain rate in 100 panicles was 71.11%-84.44%.The proposal is to alternately use these two drugs in field production.