Olotuah O, Ofuya T. Comparative Protection of Cowpea, Vigna unguiculata (L.) Walpers Against Field Insect Pests Using Cashew Nut Shell Liquid and Cypermethrin (Cymbush). Pak. J. Nutr. 2010;9(2):158–161. doi:10.3923/pjn.2010.158.161