关键词: 小麦茎基腐病, 杀菌剂, 防治效果

Abstract: The study aims to find out high effective fungicides which had better control on wheat rhizome rot disease in filed in Honghu city, Hubei Province. Two methods were used： seed dressing and root spraying. The results showed that the control effects of five kinds of fungicides (50% carbendazim, 43% tebuconazole, 19% propiconazole, 21% jinggangmycin,50% formosa) in the seed dressing test were 25.3%~56.9%. Among them, 43% tebuconazole (1500 ml/hm²) showed the highest control effect (56.9%). At the same, the control effect of 19% propiconazole (900 g/hm²) and 21% jinggangmycin (750 mL/hm²) was also higher (53.1% and 50.0%, respectively). The control effects of five kinds of fungicides (60% carbendazim, horizon (430 g/L), 19% propiconazole, 24% jinggangmycin,weifu (400 g/L)) in the root spraying test were 11.8%~54.4%. Among them, the horizon (430 g/L) (180 g/hm²) showed the highest control effect (54.4%). The control effects of 19% propiconazole (900 mL/hm²) and horizon (430 g/L) (135 g/hm²) were also higher (49.3% and 43.2%, respectively). To control the wheat rhizome rot in Honghu city, the horizon (430 g/L) (180 g/hm²) and 19% propiconazole (900 mL/hm²) for seed dressing should be selected; 43% tebuconazole (180 g/hm²) and 19% propiconazole (900 mL/hm²) for the root spraying should be selected.

Key words: wheat rhizome rot disease, fungicides, control effect