Network Research Project (Tobacco), Department of Plant Pathology, Zonal Agricultural Research Station, Navile, U.A.S., Shimoga-577 204, Karnataka.
Root-knot nematode is a major threat for successful cultivation of flue cured virginia tobacco in the light soils of Karnataka. Yield reduction due to this menace is 59.4% in nursery and 52.9% in the main field. A study was conducted in sick plot for three years to evaluate the efficacy of neem and pongamia cake in different dosages (10,20 and 30 @plant), applied directly to the base. Pongamia cake at 30 glplant recorded maximum green leaf and cured leaf yield. However, neem cake at 20gplant recorded least root-knot nematode index followed by pongamia cake at 10 @plant.
Neem cake, pongamia cake, root-knot nematode, management, green leaf, cured leaf, top grade equivalent
