Vol. 11, Issue 11 (2022)

Author(s):
Tejas Kumar MK, Ravikumar MR, Lokesh BK and Ganpathi T

Abstract:
Zingiber officinale Rosc. is commonly known as Ginger. Rhizome rot complex of ginger is one of the most destructive diseases of ginger and responsible for significant crop damage. Among the surveyed taluks, the maximum mean disease incidence of 35.99 percent was recorded in Sirsi taluk of Uttara Kannada district and the minimum mean disease incidence of 21.50 percent was observed in Byadagi taluk of Haveri district. A roving survey was conducted during kharif – 2021 to assess the disease incidence of rhizome rot complex of ginger in major ginger growing parts of Karnataka, viz., Haveri, Shivamogga and Uttara Kannada districts. Among the surveyed taluks, the maximum mean disease incidence of 35.99 percent was recorded in Sirsi taluk of Uttara Kannada district and the minimum mean disease incidence of 21.50 percent was observed in Byadagi taluk of Haveri district. Among the surveyed districts, the maximum mean disease incidence was observed in Uttara Kannada district of 31.62 percent followed by Shivamogga district with 28.81 percent and the minimum mean disease incidence was observed in Haveri district of 25.45 percent. Improper planting material selection, poor drainage of fields, monocropping, lack of crop rotation, indiscriminate use of fertilizers and lack of knowledge on managing the disease could be the reasons for higher occurrence of rhizome rot complex in ginger growing parts of Karnataka.