Abstract
Abstract A description is provided for Cochliobolus nodulosus . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Eleusine coracana [Eleusine indica] and E . indica . Also on Echinochloa frumentacea, Panicum miliaceum, Pennisetum typhoideum Saccharum spp., Sorghum spp. and Zea mays . DISEASE: Seedling blight, foot rot and leaf blight of finger millet ( Eleusine coracana [Eleusine indica] and E. indica ). Elliptical to long rectangular spots form on the leaves, becoming coalescent, straw coloured with narrow red-brown margins. Spikes are infected and may collapse; grain does not form or is undeveloped. Systemic infection has been described for E . indica (37: 78). Many infected plants die in the seedling stage but others show the stunting caused by this type of infection. When older plants were inoculated systemic infection occurred in the new growth only; such plants may show some tillers to be infected and stunted whilst others are normal and healthy. GEOGRAPHICAL DISTRIBUTION: Widespread in E. and S. Africa, also Nigeria and Sierra Leone, in India, Formosa, Malaysia (Sarawak), Papua New Guinea, Philippines, Sri Lanka and USA (Ga, Md, Miss., S. Carol. and Va) (CMI Map 454, ed. 1, 1969). TRANSMISSION: Seed-borne.
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