Anti-nematode Effect Assessment of Peganum harmala Based-Products Against Meloidogyne javanica on Melon

Abstract

Natural products from plant origin have been tested for their potential to develop viable components of plant parasitic nematode management strategies especially against Meloidogyne javanica. Different products based on P. harmala seed evaluated in pot experiments against M. javanica associated to Cucumis melo L. crop showed that when they are used as soil amendment in pre-planting, not only reduces densities of M. javanica in soil and crop damage to melon crops, but also improves significantly growth parameters except for the emulsified oil of P. harmala which proved a phytotoxic effect although it gave a complete suppression of M. javanica. The aqueous extract and the seeds powder are among the less phytotoxic substances, which are efficient against these pathogens. P. harmala-seed-based-products have a potential antinematodes effect against Meloidogyne javanica and can be used as component of an integrated management system to control this root knot nematode.

Keywords: nematodes management, Peganum harmala; extracts, organic amendment, Cucumis melo