Causal Agent:
Fungus (Curvularia lunata)
| Characteristic Symptoms: | |
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Initial symptoms of the the disease include small necrotic spots with a light colored halo. |
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Lesions are about 0.5 cm in diameter when fully developed. |
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Severe infection can cause yellowing of the whole leaf. |
| Conditions for Disease Development: | |
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The disease is prevalent in hot, humid areas. |
| Management and Control: | |
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Use resistant varieties, if available.
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Follow proper cultural management. |
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Apply fungicides such as mancozeb (e.g. Dithane®, Manzate®), chlorothalonil (e.g. Daconil®) or maneb (eg. Maneb®)
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References
The CIMMYT Maize Program. 2003. Maize Diseases: A Guide for Field Identification. 4th edition. Mexico, D.F.: International Maize and Wheat Improvement Center (CIMMYT).
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