Controle Biológico e Químico de Meloidogyne exigua e Meloidogyne paranaensis

Abstract

Coffee is among the top five world commodities. In Brazil, its cultivation in areas contaminated by nematodes causes significant damage. In order to have more nematode control options, the present work aims to determine the potential of biological products in the control of Meloidogyne exigua and Meloidogyne paranaensis in coffee crops. Two experiments were carried out in a randomized block design, which consisted of the inoculation of two nematode species: Meloidogyne exigua and Meloidogyne paranaensis in coffee seedlings (MGS Paraíso 2). The first evaluation took place at 90 days after inoculation (DAI) and the second at 120 DAI, fresh mass of roots, dry mass of shoots, number of eggs and population of 2nd instar juveniles were evaluated. The data obtained from the evaluated characteristics were submitted to analysis of variance, using the F test and the Scott-Knott test at 5% probability was used to compare the means. The use of the active ingredient fluensulfone negatively influenced the results obtained for mass accumulation and control of the number of eggs and 2nd instar juveniles.