Out of 26 strawberry varieties, only Sierra was resistant to Verticillium albo-atrum R & B. Climax, Marshall, Magoon, and Auchincruive No. 6, however were tolerant. Climax, Marshall, Northwest, Oberschlesien, Perle de Prague, Red Crop, Sierra, and Temple, when selfed, yielded a high percentage of resistant seedlings, suggesting that these varieties have promise as parent material in the breeding of commercial varieties for Verticillium wilt resistance. Fragaria chiloensis from two geographical areas yielded resistant seedlings in contrast with F. vesca americana which produced neither resistant nor tolerant seedlings. F. virginiana yielded tolerant but no resistant seedlings.