Abstract
Abstract Relationships between headblast (Pyricularia grisea) and yields of 16 finger millet lines were studied in Uganda for two seasons. Each finger millet line was subjected to application of carbofuran at planting; mancozeb spray from establishment to physiological maturity; carbofuran + mancozeb; and an untreated control. Yield significantly (P= 0.0001) varied with the finger millet genotype during the first rainy season and chemical treatment during the second rains (P= 0.0049). Application of carbofuran increased the numberof spikelets/plant probably because of the control of shootflies while on susceptible genotypes, blast severity was significantly reduced by application of mancozeb and mancozeb + carbcfuran. Significant yield losses attributed to blast were recorded on the susceptible lines during both the first and second rainy seasons and averaged 55%.
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