Leaf smut of rice

Catalogue Type

Plant Diseases Catalogue

Scientific Name

Entyloma oryzae

Family

Entylomataceae

Distinguishing Characters

*Appears distinct , not confluent,leadn-black spots on leaves.
*The spots are linear , rectangular angular elliptical and measures 0.5-2.0×0.5-1.5mm.

Host Crop

Rice

Photo of Pathogen

Photo of Damaged Crop

Description

*Leaf smut ,caused by fungus Entyloma oryzae is a widely distributed ,but somewhat minor,disease of rice.

*The fungus produces slightly raised,angular ,black spots(sori)on both sides of leaves.

*The fungus is spread by airborne spores and over - winters on diseased leaf debris in soil.leaf smut occurs late in the growing season and causes little loss.The disease is favoured by high nitrogen rates.