Abstract
The nematodes are listed by the Ministry of Agriculture as one of the eight pests that cause more economic damage to Brazilian agriculture. Among the species mentioned are Pratylenchus brachyurus, Meloidogyne javanica, M. incognita and Heterodera glycines. All are very harmful in soybeans and beans, and the first three are for most crops such as sugarcane, corn, banana, vegetables in gene…