Abstract: In order to obtain fungicides with high efficiency， low toxicity， and less pollution in controlling citrus anthracnose， which caused by Colletotrichum gloeosporioides Penz.， the toxicity of pyraclostrobin， azoxystrobin， prochloraz， pyraclostrobin·me\|tiram， thiophanate\|methyl and iprovalicarb to a strain of C. gloeosporioides was respectively tested by mycelium growth rate and spore germination. The results showed that the effective dose to reduce mycelial growth of C. gloeosporioides by 50% （EC50 values） were 081， 258， 0066， 497， 155515 and 23798 μg·mL-1， whereas the EC50 values of spore germination to pyraclostrobin， azoxystrobin， prochloraz and pyraclostrobin·me\|tiram were 093， 1434， 447 and 529 μg·mL-1. Field experiments showed that 95% of above citrus anthracnose could be inhibited by azoxystrobin， prochloraz， iprovalicarb and pyraclostrobin·me\|tiram with the recommended concentrations on citrus anthracnose. Conclusively， azoxystrobin， prochloraz， iprovalicarb and pyraclostrobin·me\|tiram are effective in controlling citrus anthracnose.

Key words: citrus anthracnose, fungicide, toxicity test, field controlling effect