METHOD: Visual Examination and Colony Counts CONDITIONS: Green House METHOD NARR: Wild species were tested for resistance to both V. dahliae and V. albo-atrum. Seedlings were inoculated at 3 weeks through root injury by cuttingil and pouring 5ml of inoculum into the trench. Visual assessments were done every week for 100 days. RESULTS NARR: Significant negative associations were observed between colony counts and percent tuberization and tubergence, % emergence and root volume showed negative associations with colony counts, but not at significant levels. Unlike earlier reports, resistance to V. albo-atrum does not neccessarily indicate resistance to V. dahliae. AUggests that visual disease rating can be an accurate measure of verticillium wilt infection relative to mean colony counts. Data suggests that the inheritance to Verticillium may be polygenic and complex. Wild species used in this st of resistance other than immature plant resistance.