【摘要】 室内采用菌落生长速率法测定了适乐时、烯唑醇、甲基立枯磷、敌力脱、多菌灵和三唑酮等杀菌剂对小麦纹枯病菌的毒力 ,各药剂的EC50 值分别为 :0.030、0.082、0.205、0.224、1.814、1.971、2.065μg/mL。在田间适乐时 (2g/100kg种子)拌种的防治效果为75.2% ,其余各试验药剂喷雾的防治效果为 :烯唑醇 (6.3g/667m2)72.6% ,敌力脱 (5g/667m2)65.5% ,甲基立枯磷 (50g/667m2)61.3% ,多菌灵 (50g/667m2)49.7% ,井冈霉素(10g/667m2)56.3% ,三唑酮 (8.8g/667m2)60.4%。更多还原

【Abstract】 The toxicity of fludioxonil,propiconazole,diniconazole,tolclofos-methyl,jingangmycin,carbendazim and triadimenfon against Rhizoctonia cerealis were assayed in laboratory through the method of colony growth diameter test.The EC50 values of them were 0.030、0.082、0.205、0.224、1.814、1.971、2.065μg/mL separataly. In field seeds were treated with fludioxonil 2.0g/100kg seeds,its control sffect was 75.2%.Other fungicides were sprayed on the basic departments of wheat,their control effects were separately:diniconazole(6.23g/667m2)72.6%,propiconazole(5.0g/667m2)65.5%,tolclofos-methyl(50g/667m2)61.3%,carbendazim(50g/667m2)49.7%,jingangmycin(10g/667m2)56.3%,triadimenfon(8.75g/667m2)60.4%.更多还原