Santhosh J. Eapen (1992) . Influence of plant age on root knot nematode development in cardamom. Nematol. medit. 20:193-195
Santhosh J. Eapen (1994). Pathogenicity of root knot nematode on small cardamom (Elettaria cardamomi R.) in small cardamom (Elettaria cardamomum Maton). J.ent.Res18:181-183.
Thomas, G.V., Sundararaju, P., Ali S.S. and Ghai, S.K. (1989). Individual and interactive effects of VA mycorrhizal fungi and root-knot nematode, Meloidogyne incognitta on cardamom. Trop.Agric. 66:21-24.