This research was aimed at knowing the effects of extract, exudates andintercropping of marigold on the development of Meloidogyne javanica on tomato. This research was conducted in Nematological Laboratory and Glass house ofFaculty of Agriculture, Sriwijaya University Indralaya, from April to August 2005.The experiment was arranged in a Factorial Completely Randomised Designcomprised of two fa…