Pathogenicity of mango anthracnose.
Quimio T. H., Quimio A. J.
Author Affiliation: Univ. Philippines, Los Banos, Laguna, Philippines.
Philippine Agriculturist 58 : 322-329
Abstract : Colletotrichum gloeosporioides [Glomerella cingulata] isolates from mango, citrus and papaw could cross-infect with varying degrees of pathogenicity. C. musae only infected banana. Gloeosporium psidii could infect mango and banana as well as guava. G. cingulata infected all aerial parts of mango trees except the bark of the main trunk. Mature leaves required wounding for infection to occur. Infection progressed faster in wounded tissues and in ripe fruit. Lesions were first observed 12 h after inoculation on wounded, ripe fruits compared with 24 h on wounded, unripe ones. On unwounded fruits lesions appeared after 48 h and 72-96 h, respectively. Spores germinated after 6 h on the surface of intact fruits, and penetration occurred after 24 h in intact ripe fruit tissues and 48 h in unripe ones.