Sclerotinia sclerotiorum, the causal agent of sclerotinia stem rot is a major disease affecting canola (Brassica napus L). In order to increase resistance levels of canola to the disease, other species of Brassica need to be screened. This study was conducted to determine whether plant introductions of Brasscia carinata confer higher levels of resistance to stem rot than cultivars of B. napus. A greenhouse and field study was conducted using the petiole inoculation technique to evaluate resistance to stem rot in the fifty-nine plant introductions and compared them B. napus cultivars. Death rate results indicated that B. carinata plant introductions exhibit more resistance to stem rot than cultivars of B. napus. Resistant and susceptible checks of B. napus were generally more susceptible to the disease than the plant introductions. ¢Norin 9¢, the resistant check, had a death rate of 88.0%, and the susceptible checks ¢Delta¢ and ¢Legacy¢ had death rates of 87.7 % and 88.3%. PI 193760, PI 360879, PGR-16790 and PI 360886 exhibited lower death rates of 52.3 %, 53.4%, 54.3% and 55.6%. The lower death rates of the plant introductions give promise to finding other resistant Brassica species and improving resistance to stem rot in canola.