Symptoms and Pathogenic Biological Characteristics of Anthracnose Caused by Colletotrichum gloeosporioides on Peach Seedling
The injury of anthracnose on peach seedling in the field was investigated, isolation,incubation, and biological characteristics observation of the pathogen were carried out to solve the serious occurrence problem of anthracnose on peach seedling, and provide basis for its prevention. The results showed that the pathogen was Colletotrichum gloeosporioides, which mainly infected one-year-old peach seedlings, and resulted damping-off or wilting. It broke out from April to July, reached peak in May, and with 10 days of latent period. Results of biological characteristics in lab indicated that the suitable temperature was 20~30℃, and humidity above 95 % for the germination of the pathogen conidia.