Identification and Biological Characteristics of the Pathogen of Colletotrichum gloeosporioides on Grape in Xinjiang

The writer isolated anthrancnose from rotted grape of Jufeng recently discovered in Xinjiang.According to its morphologic characters,cultural characteristics,host range and pathogenicity,it was shown that the pathogen was C.gloeosporioides.(Penz.)Sacc.The temperature for this pathogen growth was from 10℃ to 35℃,with the optimum from 28℃ to 30℃;the pH values ranged from 3 to 9,with the optimum at 6,Alternate 12h light and dark was the best for mycelial growth;this pathogen had wide range of hosts.