Abstract

Results revealed that three sprays of propiconazole 0.05%+ petroleum based mineral oil 1% effectively controlled the Sigatoka leaf spot disease. The next best treatments were propiconazole o.1% and mancozeb 0.25%, carbendazim 0.1%, carbendazim +Calixin 0.1% and Propiconazole 0.1%. The youngest leaf spotted was 10.62 in the treatment of propiconazole 0.05%+ petroleum based mineral oil 1% and 10.69 youngest leaf spotted (YLS) in the treatment of propiconazole o.1%. With regard to yield, The highest yield of 72.39 t/ha was recorded in the treatment of propiconazole 0.1% followed by propiconazole 0.05% + petroleum based mineral oil 1% (72.28 t/ha), mancozeb 0.25% carbendazim 0.1%, carbendazim + calxin 0.1% and propiconazole 0.1% (65.62 t/ha) and it was lowest in the untreated check (48.74 t/ha). The B/C ratio was more (8.69) in the treatment of propiconazole 0.05% + petroleum based mineral oil 1% followed by propiconazole 0.1% (8.56), petroleum based mineral oil 1% (7.51) and mancozeb 0.125% + petroleum based mineral oil 1% (7.38).

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