Effects of Some Indigenous Plant Extracts as Inhibitors of Egg Hatch in Root-Knot Nematode (Meloidogyne incognita race 2)

Abstract

Studies on the effectiveness of some indigenous plant extracts as inhibitors of egg-hatch in root- knot nematode ( Meloidogyne incognita race 2) were carried out in the Plant Protection Laboratory of Institute of Agricultural Research & Training, Obafemi Awolowo University, Moor Plantation, Ibadan. Azadirachta indica (Neem); Chromolaena odorata (Siam weed); Nicotiana tabacum (Tobacco); Carica papaya (Pawpaw); Cannabis sativa (Hemp); Cassia alata (Asunwon) and Vernonia amygdalina (Bitter leaf) were effective inhibitors of egg-hatch of root-knot nematode Meloidogyne incognita race 2 at concentration of 2.5% w/v (250g/10litres of water) while the rest were good inhibitors of egg-hatch of M. incognita race 2.