Department of Nematology, Tamil Nadu Agricultural University, Coimbatore-641 003.
Three varieties of Bellary onion viz. Arka Kalyan, Arka Niketan and Arka Pragatti were tested against three species of root knot nematodes viz. M. incoznita, M. javanica and M. arenaria. Among the 3 varieties tested, Arka kalyan proved to be the most susceptible variety to the three nematode species and M. arearia was more pathogenic comparatively to other root-knot nematode species.
Meloidogyne species, Bellary onion, varietal response