Anthracnose of Blueberry (Vaccinium spp.) of Caused by Colletotrichum gloeosporioides in Korea

Kwon, Jin Hyeuk; Cheon, Mi Geon; Park, Chang Seuk

Research in Plant Disease 2008;14(1):61-63.
Published online April 30, 2008.

Colletotrichum gloeosporioides에 의한 블루베리 탄저병 발생

권진혁, 천미건, 박창석

Anthracnose of Blueberry (Vaccinium spp.) of Caused by Colletotrichum gloeosporioides in Korea

Jin Hyeuk Kwon, Mi Geon Cheon, Chang Seuk Park

Abstract

Anthracnose of blueberry (Vaccinium spp.) caused by Colletotrichum gloeosporioides was observed in the exhibition orchard of Gyeongsangnam-do Agricultural Research and Extension Services in Korea, 2007. The typical symptoms were initially water-soaked lesions and then rotten on fruits, the infected fruits were dropped but some of them were hunged and mummified. The pathogenic fungus grown on potato dextrose agar showed greyish to dark gray color. Conidia were straight, cylindrical apex obtuse in shape and 10~20×3~5 μm in size. Appressoria were brown in color, clavate or ovate in shape and 6~18×4~12 μm in size. Optimum temperature for mycelial growth was 25~30℃. On the basis of mycological characteristics and pathogenicity test on host plants, the fungus was identified as Colletotrichum gloeosporioides (Penz.) Penz. & Sacc.. This is the first report on the anthracnose of blueberry (Vaccinium spp.) caused by C. gloeosporioides in Korea.

Key Words: Anthracnose, Blueberry, Colletotrichum gloeosporioides, Vaccinium spp