Economics of fungicidal control of Phomopsis leaf blight of eggplant
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Authors
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S.J. ISLAM and SITANSU PAN
Department of Plant Pathology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur 741 252
Keywords:
Phomopsis leaf blight, eggplant, economic efficacy, carbendazimAbstract
Copper oxychloride, mancozeb, tolcofos-methyl, carbendazim and carboxin formulations were evaluated in field trial for their cost effectiveness for the control of Phomopsis leaf blight (Phomopsis vexans) of eggplant. Distinctly, higher to marginal increase in yield was obtained due to spraying. The treatments by carbendazim (0.1 %) tolcofos-methyl (0.5%) and carboxin (0.25%) provided nearly complete control of the disease with 3 sprayings at 15 days interval. Three fortnightly sprays each of 700 l/ha with carbendazim (0.1 %) gave the best control in terms of increased yield over control (19.40 q/ha) and net profit (Rs. 4645.15/ha) with a benefit-cost ratio of 3.95.
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