Survey of Mango Anthracnose caused by Colletotrichum gleosporioides in North Eastern Karnataka

Mango (Mangifera indica) is the most important fruit crop in the world as well as in India, called the king of fruits. Anthracnose of mango caused by Colletotrichum gloeosporiodes is among those diseases responsible for low yield of crop in India. The apparent symptoms can be observed on both vegetative and reproductive structure. Tiny dark brown to black spots appear at first which enlarge and join together and kill the blossoms before the production of fruit. Survey of mango orchards in North Eastern Karnataka showed the prevalence of Mango anthracnose at all visited locations. Maximum per cent disease index on vegetative parts was observed in Bidar district with mean PDI of 22.41 and least in Kalaburgi with mean PDI of 17.58. On inflorescence maximum per cent disease index of 12.44 was also observed in Bidar district and least PDI of 9.82 in Raichur district. Among the different varieties, Alphonso recorded maximum per cent disease index of 24.12 followed by Totapuri (22.67) and Mallika (20.66). Dasehari recorded least PDI of 14.87 followed by Malgoa (16.83) on vegetative parts.