Evaluation of Control Effects on Several Fungicides to Stem Blight of Asparagus

The experiments of control effectiveness of several fungicides including Bellkute ,Diniconazole,Thiabendazole, Chlorothalonil.Carbendazim and Lusunqing (new mixture) was tested in field to control stem blight of asparagus in 1992-1993.The results showed that the contral effect of 79.76% on average for Bellkute with 500 mg/L was significantly (P0.01) better than that of 48.68% on average for Chlorothalonil with 1250 mg/L under the condition of sprayed with diluting fungicide liquid 4000 L/hm2 when the disease was seriously Prevalant.And coned effect of 78.24% on average for Lusunqing with 1000mg/L was better than that of 71.74% for Chlorothalonil with 1250 under the spraying liquid 1500L/hm2, but there were no significantly difference between them.By means of penting on surface of asparagus shoot with 10000 mg/L Lusunqing the control effect (80.97%) was the highest.