Ekpenyong EP, Ononuju CC, Orikara CC and Ikwunagu EA 2016. Nematicidal potential of three plant materials against Root-Knot Nematode (Meloidogyne incognita) infestation on Tomato (Solanum lycopersicum). International Journal of Life Sciences. 4, 1 (Apr. 2016), 22–28.