Effect of plant extracts and derivatives, butter milk and virus inhibitory chemicals on pumpkin yellow vein mosaic virus transmission
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Authors
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K. lAY ASHREE, K.B. PUN and SABITHA DORAISWAMY
Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore 641 003
Keywords:
Plant extracts, plant derivatives, animal product, virus inhibitory chemicalAbstract
Among the ten plant extracts tested for their efficacy in controlling pumpkin yellow vein mosaic virus in pumpkin (cv. Co 2), Bougainvillea spectabilis showed maximum inhibition of virus transmission by Bemisia tabaci followed by Boerhavia diffusa. Among the plant derivatives tested, neem oil and Thuja 30 (derived from Thuja orientalis) inhibited the virus effectively. The only animal product tested was buttermilk which also reduced virus transmission effectively. Acetyl salicylic acid recorded the least virus transmission among the virus inhibitory chemicals tested followed by barium chloride.
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