Biotoxicity of Parthenium hysterophorus extracts against Meloidogyne javanica and Helicotylenchus dihystera

Resumen

There are many reports of the biotoxicity of the extracts of different plant parts incorporated in the soil (Egunjobi and Afolami, 1976; Veech, 1981; Nandal and Bhatti, 1983; Jain and Hasan, 1983). Gommers (1973) surveyed a wide range of compo sitae and concluded that there are several nematicidal principles in the family which can suppress populations of Pratylenchus penetrans. The present investigation was carried out to explore the nematicidal properties of Parthenium hysterophorus L. « Congress Grass » (Family: Compositae) an obnoxious and widely distributed perennial herbaceous weed.