Abstract
Phytonematodes are among the major phytosanitary problems on common bean (Phaseolus vulgaris), especially the root-knot nematodes (Meloidogyne spp.), perhaps the most widespread agricultural pest, and particularly the specie M. incognita, one of the most economically damaging pathogens. The control of these nematodes involves unfeasible agronomic practices, emphasizing the need for the de…