Comparative Efficacy of Some Oil Cakes and Extracts Against Root-Knot Nematode in Tomato and Brinjal

Oil cakes of castor, neem and Simarouba glauca @ 2.5 and 5 g/kg soil and defatted cake extracts of S. glauca given as root dip and soil application @ 2.5 and 5 ml/kg soil, on the plant growth parameters and the root-knot nematode, Meloidogyne javanica build-up were studied under pot culture experiments in tomato and brinjal. Soil application of castor and neem cake was found superior to other treatments in tomato and brinjal, respectively, in improving the plant growth parameters and restricting the nematode gall and eggmass numbers. S. glauca cake and extracts were also nematicidal, but hindered the root growth.