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    • Effect of intercropping bulb onion and vegetables on purple blotch and downy mildew 

      Narla, R.D; Muthomi, J. W; Gachu, S.M; Nderitu, G.H; Olubayo, F.M (University of NairobiDepartment of plant science and crop protectionDepartment of plant science and crop protection, 2011)
      Field experiments were conducted over two growing seasons to determine the effectiveness of vegetable intercrops in the management of downy mildew (Peronospora destrutor) and purple blotch (Alternaria porri) of bulb onion. ...