Experimental Study on Field Efficacy of Several Fungicides for Wheat Fusarium Crown Rot
Currently,the traditional method to control wheat Fusarium crown rot is seed coating.However,seed coating alone does not achieve satisfactory control results.To explore the control effect of fungicide spray application on wheat Fusarium crown rot in the field,field efficacy trials were carried out using several fungicides,such as hymexazol and others,applied at wheat regreening stage.The results showed that spraying 40%prothioconazole-tebuconazole SC at 50 g/mu and 25%thifluzamide SC at 100 g/mu once on the stems and leaves during regreening stage,the control effect achieved more than 50%against wheat Fusarium crown rot.At the full heading stage of wheat,the control effect reached 60.86%and 56.78%,respectively.The results showed that both 40%prothioconazole-tebuconazole SC and 25%thifluzamide SC have good control effect on wheat Fusarium crown rot.Additionally,these fungicide are safe for wheat and provide a new approach for controlling wheat Fusarium crown rot.
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