Inoculated cowpea roots with 2000 larvae of Heterederacajanigave an almost equal final cyst population in a Perkash soil with 81.0 sand, 8.7% silt and 10.2% clay and a Warrak soil with 72.5% sand 2% clay and 24.5% clay. This final cyst population was statistically higher than in a Dekernis soil with 58.4% sand, 10.5% silt and 31% clay. Chemical analyses of the infected and non infected plants in these soils showed that Cu content was the most affected nutrient followed by N and P in roots, K in shoots and Zn in seeds.