554EFFECT OF PHENOLIC COMPOUNDS OF THE ROOTS OF MEDICINAL PLANTS ON PLANT PARASITIC NEMATODESSoil nematodes have great impact on crop productivity when they attack the roots of seedlings immediately after seed germination. Therefore nematode control is highly essential. Most of the pesticides and chemicals used for nematode control have adverse effect on environment. Phenolic compounds like flavanoids, tannins, lignans etc from the roots of medicinal plants have the capacity to reduce the effect of plant parasitic nematodes. Here medicinal plants like Kaempferia galangal and Aloe vera were cultivated along with control plant Brinjal (Solanum melongena), individually to find out the effect of phenolic compounds on population of plant parasitic nematodes. The nematode population was analyzed at regular intervals. The total phenolic contents of both medicinal plants and Brinjal were evaluated to verify the total phenolic presencekumaresanmhn@yahoo.co.inResearch612015Nematodes,Phenolic compounds,Kaempferia galangal,Aloe vera,BrinjalK.Mohan, S.Indu,M.S.GincyProfessor, Department of Biotechnology, Udaya School of Engineering, Udaya nagar, Ammandivilai Post, Kanyakumari, Tamilnadu 629204, India.,P.G.Student, Department of Biotechnology, Udaya School of Engineering, Udaya nagar, Ammandivilai Post, Kanyakumari, Tamilnadu 629204, India,P.G.Student, Department of Biotechnology, Udaya School of Engineering, Udaya nagar, Ammandivilai Post, Kanyakumari, Tamilnadu 629204, India