Additive Effect of Three Orgabic Materials and Nematicides on the Reproduction of Meloidogyne Incognita and Yield of Mentha Arvensis


  • R. Pandey


Adhatoda vasica, essential oil, Meloidogyne incognita, Mentha arvensis, Murrya koenigii, neem cake, nematicides.


Pandey, R. 2000. Additive effect of three organic materials and nematicides on the reproduction of Meloidogyne incognita and yield of Mentha arvensis. Nematropica 30:154-160. Greenhouse trials were conducted to determine the influence of three organic materials and two nematicides on reproduction of Meloidogyne incognita and yield of Mentha arvensis . Maximum reduction in M. incognita populations occurred at high doses of neem cake (Reproduction factor (Rf) = 0.64) followed by Adhatoda vasica Nees leaf powder (Rf = 0.99 to 1.40), aldicarb (Rf = 1.58), medium dose of neem cake (Rf = 1.70), carbofuran (Rf = 2.45), bavistin (Rf -- 3.38) and powdered leaf of Murraya koenigii (L.) Spreng (Rf = 3.71, 3.37), respectively. Maximum oil yield of menthol mint cv. Hy-77 was obtained in neem cake treated soil followed by powdered leaves of A. vasica, M koenigii, aldicarb, carbofuran and bavistin. Similar results were recorded with dry root and shoot weights of the plant. A phytotoxic effect of hi