Leaf spot and dieback disease (Colletotrichum gloeosporioides)
On young nursery seedlings, small brown specks appear which gradually enlarge resulting in drying of the leaf. From the leaves, the infection spreads to the stem, resulting in necrosis from the apex downwards. On old seedlings and mature trees, light and dark brown concentric zonation occurs. Spraying 1% Bordeaux mixture during rainy season controls the disease.
Seedling blight
The fungus causes light brown patches on the stem, which girdle the stem and cause death of seedlings. The disease can be controlled by spraying Bordeaux mixture 1%.
Grey blight (Pestalotiopsis palmarum)
It is characterized by small brown spots which later turn grey with brown border. The disease can be controlled by spraying Bordeaux mixture 1%.