Bacterial Diseases : They can cause a variety of symptoms including cankers, leaf spots, overgrowths, scabs, wilts, and others
Others: This disease attack can causes reduction in photosynthetic activity and defoliation of leaves thereby reducing the vitality of the host plant.
Organism : Macrophomina mangiferae
Other pathogens : Pestalotiopsis mangiferae (Grey blight)
Phoma glomerata (Phoma blight)
Phoma sp. (Twig blight and fruit rot)
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Leaf blight (Macrophomina mangiferae) :: It is a serious disease on leaves, stem and fruits. The infection mainly seen on leaves, On stem, the lesions are elliptic and latter girdle the stem. On fruits, water soaked, circular lesions are produced which enlarge and cause rot . Pathogen survives more than a year on leaves. Field sanitation is important.