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Seasonal variation in incidence of insect pests occurring on black gram [Vigna mungo (Linn.) Hepper] in lower gangetic plains of west Bengal

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The experiment was conducted in the ‘A-B’ Block Farm of Bidhan Chandra Krishi Viswavidyalaya situated at Kalyani, Nadia, West Bengal during both summer and kharif seasons of 2016 with an objective to study the seasonal variation in incidence of insect pests on two varieties of black gram viz. Pant U-31 and Pant U-19 as well as their relationship with abiotic factors in the lower Gangetic plains of West Bengal. The results revealed Aphis craccivora, Bemisia tabaci, Megalurothrips distalis, Maruca vitrata, Helicoverpa armigera, Spilarctia obliqua as the major pests of the crop. | Seasonal variation in incidence of insect pests occurring on black gram [Vigna mungo (Linn.) Hepper] in lower gangetic plains of west Bengal

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