G. K. Shrestha

DOI

ABSTRACT

Crucifers are important winter vegetables in Nepal. Many of the crops suffer from clubroot disease affecting yield drastically. In Madhyapur area of Bhaktapur, observations were made for four years continuously with farmer participation. Depending upon the vegetable species, on an average, the intensity of clubroot disease ranged from 15% to as high as 98%. On an average, the incidence was 34% in 2002, 45% in 2003, 57% in 2004 and 57% in 2005. The disease has been increasing in all crucifer crops. Cabbage was affected the most followed by cauliflower, knolkhol, mustard and turnip in order. Broccoli had least incidence of the disease in the study area. However, some farmers reported the disease to affect the crop as much by over 90% in 2010.