The disease transmitted by mechanical means in the most of their hosts. Spread of OS occurs naturally through seeds.
The disease incidence is low and no economic significance. As with several other disease affecting the roots and stem base, aerial symptoms provide the first visible symptoms of infections.
The first symptom of stem wet rot is usually the sudden and simultaneous death of all unexpanded spear leaves, together with the youngest expanded fronds surrounding the spears.
Sooty mold’s name comes from the dark threadlike growth (mycelium) of the fungi resembling a layer of soot.
The disease attacks mature palm trees, especially in plantation areas near roadside or dusty areas. The spread of the disease is through spores released by algae, either through wind or rainwater.