Eficácia de nematicidas biológicos e químicos para controle de Pratylenchus brachyurus na cultura da batata sob condições de casa de vegetação

Abstract

Potato culture is very important for the Brazilian agriculture. There are several phytosanitary issues, especially phytonematoids. The present work had the objective of evaluating the efficacy of biological and chemical nematicides for controlling Pratylenchis brachyurus in potato culture. The experiment was performed in 2018, in the Agrarian Sciences Institute from the Federal University of Uberlandia, under hothouse conditions, with six treatments and four repetitions. The treatments were: control without biological and chemical treatment (only inoculated with nematoid); Rubgy [cadusafós]; Ecotrich [Trichoderma harzianum] + Nemat [Paecilomyces lilacinus]; Ecotrich + Nemat + Nemaplus; Nemat + Ecotrich + Pick Up Moss; And absolute control (without inoculation of nematoid and without biological and chemical treatment). The evaluations performed were: reproduction factor, productivity and productivity increase. The data was analyzed in the statistics program SISVAR, the comparison of averages was performed using the Scott-Knott test at 5% probability. There was an increase in productivity when chemical and biological nematicides were used.