Abstract:

To screen the effective fungicides for the control of the disease, EC50 of eight kinds of fungicides to Fusarium oxysporum Schl. f. sp. were tested by means of mycelium growth rate method under the condition of laboratory, respectively. The results showed that EC50 values of prochloraz, diniconazole and difenoconazole were 0.08526, 0.81147and 1.03912 mg/L, respectively, suggesting that the three fungicides tested all had good inhibition against the fungus. But mancozeb, triadimefon and chlorothalonil were not obviously inhibitory against the pathogen, with the EC50 value being 99.33022, 128.4983 and 112.112 mg/L, respectively.