Leaf Smut Symptoms on Rice

Leaf Smut (fungus - Entyloma oryzae): This is a minor fungal disease in which small slightly raised black spots develop primarily on the leaves. Raised spots or pustules break open releasing air-borne spores. Infection is often heavy enough to kill tips of leaves. Leaf smut occurs late in the growing season and causes little or no economic loss. No control measures are recommended.
February, 1996