Genotypic and insecticidal management of the stunt disease of field pea
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Authors
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R.N. SINGH and A.T. KHAN
Department of Plant Pathology, N.D. University of Agriculture and Technology, Kumarganj, Faizabad 224 229
Keywords:
Pisum sativum, red clover vein mosaic virus, pea stunt disease, genotypic resistance, pea stem fly, insecticidal pest managementAbstract
Five pea genotypes, namely, Rachna, Jawahar Matar-l0, T-163, Bonneville and Arkel were evaluated for resistance against red clover vein mosaic virus. T-163 gave moderately resistant and rest of the genotypes moderately susceptible reaction under natural disease pressure. Under artificial inoculation condition, however, all the genotypes could Qe classed as susceptible. Insecticidal sprays resulted in significantly lower pea stunt and stem fly incidence and higher grain yield over water spray alone. Lowest disease and stem fly (Ophiomyia phaseolii) incidence resulted from 4 sprays of phosphamidon (300 g a.i./ha) and monocrotophos (400 g a.i./ha), respectively. These insecticides, with per hectare grain yields of 19.400 and 20.116 quintals, respectively, gave highest cost benefit ratio and per hectare profitably too.
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