10%叶菌唑SC等防治小麦赤霉病、白粉病试验研究

Experimental Study on the Control of Wheat Scab and Powdery Mildew With 10%Carbendazole SC

通过试验,探索出10%叶菌唑SC不同剂量单用或其与430 g/L戊唑醇SC不同剂量复配防治小麦穗期赤霉病、白粉病的防治效果。结论:用10%叶菌唑SC 50~60 mL/667 m^(2)或10%叶菌唑SC 40~50 mL+430 g/L戊唑醇SC 20~30 mL/667 m^(2),对赤霉病防效好,其防效与用40%丙硫·戊唑醇SC 40 mL/667 m^(2)相当;在小麦白粉病偏重发生情况下,不可单用叶菌唑,而要每667m^(2)用10%叶菌唑SC 40~50 mL+430 g/L戊唑醇SC 20~30 mL,对白粉病防效较好,其病指防效在83.52%~92.09%之间,与每667 m^(2)用40%丙硫·戊唑醇SC 40 mL、麦甜组合50+33 mL、45%戊唑·咪鲜胺EW 50 mL防效相当,优于每667 m^(2)用48%氰烯菌酯·戊唑醇SC 50 mL。所有含有10% 叶菌唑 SC 的 7 个处理的小麦产量均显著高于空白对照。

Through experiments,the control effects of 10%carbendazole SC at different doses alone or in combination with 430 g/L tebuconazole SC at different doses on wheat head blight and powdery mildew were explored.Conclusion:the control effect of 10%carbendazole SC 50~60 mL/667 m^(2) or 10%carbendazole SC 40~50 mL+430 g/L tebuconazole SC 20~30 mL/667 m^(2) on scab was good,and the control effect was equivalent to that of 40%propionazole and tebuconazole SC 40 mL/667 m^(2);In the case that wheat powdery mildew is more serious,it was not allowed to use carbendazole alone,but to use 10%carbendazole SC 40~50 mL+430 g/L tebuconazole SC 20~30 mL every 667 m^(2).The control effect on wheat powdery mildew was better.The disease index control effect was between 83.52%and 92.09%,which was equivalent to that of using 40%propionazole·tebuconazole SC 40 mL every 667 m^(2),50+33 mL of maitian combination,and 45%pentazole·prochlorazole EW 50 mL every 667 m^(2),and was better than that of using 48%cyanendrin·tebuconazole SC 50 mL every 667 m^(2).The wheat yield of all 7 treatments containing 10%carbendazole SC was significantly higher than that of the blank control.