Avoid any injury to the tree, especially during planting and regular maintenance activities. There is no chemical control for this disease. Buds and young fronds show black lesions. A firm rot of the bud occurs. This area may become slimy later due to secondary invaders.
Older fronds are green and the last to die.
Use preventative fungicides such as copper hydroxide or copper salts of fatty acids on plants exposed to the disease. Apply at intervals sufficient to protect new developing tissue. Apply all chemicals according to directions on the label. Palms that are planted too deep or in areas with poor aeration, such as water-logged soils, are the most susceptible. It is difficult to diagnose nutritional deficiencies by visual symptoms alone, since some symptoms overlap and may appear to be a disease.