Clubroot disease caused by a soil borne pathogen, Plasmodiophora brassicae  has been appearing as the most devastating disease in Brassica vegetables in Nepal. The use of lime and Nebijin is only the available technologies to manage this disease. In search of new and eco-friendly treatments against this disease, an experiment was conducted in screen house with 12 different treatments including untreated as control during 2009-2010, and the effect of fluazinam was verified in naturally infested farmer’s field during 2010-2011 using cauliflower hybrid, MilkyWay. Among 12 treatments, the effect of Fluazinam and copper oxychloride were significant (P=0.05), however, Fluazinam was most effective under both screen house and field conditions. The effect of Fosfilombrico-Star (the self defence inducer), mustard cake and Suthochu (EM5) were also significant in reducing clubroot severity as compared to untreated control in both the years. In clubroot incidence, their effects were significantly different from untreated control in first year, but in the second year they were at par. Since, clubroot severity is more important than incidence in reducing yield, these treatments could be promising candidates for integrated management of clubroot disease provided efficacy of these treatments remain stable under field conditions.

Clubroot disease caused by a soil borne pathogen, Plasmodiophora brassicae  has been appearing as the most devastating disease in Brassica vegetables in Nepal. The use of lime and Nebijin is only the available technologies to manage this disease. In search of new and eco-friendly treatments against this disease, an experiment was conducted in screen house with 12 different treatments including untreated as control during 2009-2010, and the effect of fluazinam was verified in naturally infested farmer’s field during 2010-2011 using cauliflower hybrid, MilkyWay. Among 12 treatments, the effect of Fluazinam and copper oxychloride were significant (P=0.05), however, Fluazinam was most effective under both screen house and field conditions. The effect of Fosfilombrico-Star (the self defence inducer), mustard cake and Suthochu (EM5) were also significant in reducing clubroot severity as compared to untreated control in both the years. In clubroot incidence, their effects were significantly different from untreated control in first year, but in the second year they were at par. Since, clubroot severity is more important than incidence in reducing yield, these treatments could be promising candidates for integrated management of clubroot disease provided efficacy of these treatments remain stable under field conditions.