@PROCEEDINGS {JACKAI:1987, title = {Insect pest surveys on cowpea (Vigra unguiculata Walp) and the possible effects of some climatic factors on the population trends of the legume pod borer and pod suscking bugs}, author = {Jackai, L. }, editor = {Rijks, D. and Mathys, G. }, booktitle = {In: Proceedings of the Seminar on Agrometeorology and Crop Protection in the Lowland Humid and Sub-humid Tropics}, year = {1987}, publisher = {World Meteorological Organization}, address = {Geneva}, }