Brown blight of tea(Camellia sinensis(L.) Kuntze) was observed at tea plantations of Boseung, Chonnam Province in 1992-1994. Circular to irregular spots appeared on margins and insides of mature leaves, and then black dot-like acervuli were radially f...
Brown blight of tea(Camellia sinensis(L.) Kuntze) was observed at tea plantations of Boseung, Chonnam Province in 1992-1994. Circular to irregular spots appeared on margins and insides of mature leaves, and then black dot-like acervuli were radially formed on the lesions. The casual fungus of brown blight was identified as Glomerella cingulata(Stonem) Spaulding & Schrenk. Symptoms by G. cingulata appeared on injured leaves after ca 10 days and on intact leaves ca 25 days after artificial inoculation.