Toxicity Determination of Several Fungicides against Fusarium graminearum indoor

[Objective] The aim was to select fungicides which have good control effect against Fusarium graminearum. [Method] The bacteriostatic effect of seven kinds fungicides to Fusarium graminearum was determined indoor by mycelium growth rate method. [Result] The results show that the bacteriostatic effect of Tebuconzol,Hexaconazole, Triophanate-methyl and Triflumizole was better, their EC50 were respectively 0.515, 0.679, 0.732 and 0.825 mg/L. Followed by Myclobutanil, its EC50 was 1.720 mg/L. The bacteriostatic effect of Propiconazole and Triadimefon was relatively poor, their EC50 were respectively 10.375 and 38.840 mg/L. [Conclusion] The study has important practical significance to select fungicides which have good control effect against Fusarium graminearum, and guide famers correctly select and scientifically using pesticides.