Vol. 12, Issue 3 (2023)

Author(s):
Sindushree DR, PV Patil, Yashoda R Hegde, SK Deshpande and JA Hosmath

Abstract:
Rust of cowpea caused by Uromyces phaseoli var. vignae (Barcl.) Arth. is an obligate pathogen and an economically important disease as it causes drastic reduction in grain yield and fodder quality of the crop worldwide. In spite of its destructive nature, the information about the prevalence and severity of the disease throughout the Karnataka is lacking. Therefore, fixed plot survey was carried out to assess the prevalence and severity of rust at 12 selected locations during Kharif 2020 and 2021 using rust susceptible genotype C 152. Rust was widespread in all the 12 locations of Karnataka during both the years. The rust severity was ranged between 84.18 to 97.78%. Maximum severity was noticed at Main Agricultural Research Station, Dharwad, (97.78%) and Agricultural Research Station, VC Farm, Mandya (94.08%) whereas, minimum% disease severity was noticed in Zonal Agricultural Research Station, GKVK, Bengaluru (84.18%).