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Effect of dates of sowing and varieties on incidence of aphid Lipaphis erysimi (Kalt.) on rapeseed and mustard



Effect of dates of sowing and varieties on incidence of aphid Lipaphis erysimi (Kalt.) on rapeseed and mustard



Environment and Ecology 16(3): 713-715



A field experiment was conducted during rabi season of 1991-92 in West Bengal, rapeseed Binoy and RW-white flower glossy stem and mustard RW-351 and Dhira were sown on 15 or 25 November or 5 December. Infestation by Lipaphis erysimi was lowest and seed yields and net return were the highest when the crops were sown on 15 November. RW-white flower glossy stem had the lowest aphid infestation level but the yield and net return were highest in RW-351.

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Accession: 003106211

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