Leaf Smut
General Information
Leaf Smut, caused by the fungus Entyloma oryzae, is generally considered a minor disease of rice but can cause losses under favorable conditions. It primarily affects older leaves.
Symptoms
- Small, black, linear pustules (sori) appear on leaves, typically on the upper surface.
- Pustules rupture, releasing black, powdery spore masses.
- Affected leaves may turn yellow and senesce prematurely.
Preventive Measures
- Use certified disease-free seeds.
- Practice good field sanitation by removing and destroying infected plant debris.
- Avoid water stress and ensure balanced fertilization.