QUANTIFICATION OF DAMAGE AND YIELD LOSSES AND MANAGEMENT OF ROOT-KNOT NEMATODES IN CONILON COFFEE

Authors

  • Fernando Domingo Zinger Institutto Federal de Educação Ciência e Tecnologia de Santa Catarina, Campus Lages, Lages, SC https://orcid.org/0000-0003-3552-8895
  • Lilian Katiany Castello Rabello Zinger Universidade Federal do Espirito Santo https://orcid.org/0000-0002-9780-6822
  • Willian Bucker Moraes Center for Agricultural Sciences and Engineering at the Universidade Federal do Espírito Santo, Alegre, ES https://orcid.org/0000-0001-7478-7772
  • Guilherme de Resende Camara Center for Agricultural Sciences and Engineering at the Universidade Federal do Espírito Santo, Alegre, ES https://orcid.org/0000-0001-8181-429X
  • Fabio Ramos Alves Center for Agricultural Sciences and Engineering at the Universidade Federal do Espírito Santo, Alegre, ES https://orcid.org/0000-0001-8200-2891

DOI:

https://doi.org/10.1590/1983-21252021v34n205rc

Keywords:

Conilon coffee. Biological control. Damage. Loss.

Abstract

Commercial exploitation of the coffee crop is one of the most important activities in the world’s agricultural sector. One of the main phytosanitary problems affecting the crop is the presence of Meloidogyne incognita. Several measures have been tested for the management of this pathogen, albeit with low efficiency. The objective of this work was to quantify the damage and losses and to manage M. incognita race 1 with Pochonia chlamydosporia and Trichoderma harzianum biological nematicides, comparing them to a chemical nematicide. The experiment was carried out in a commercial area naturally infested by the nematode and cultivated with the conilon coffee variety ‘Vitória INCAPER 8142’, clone V02. The treatments were tested with Carbofuran nematicide and with biological nematicides composed of P. chlamydosporia Pc-10 and T. harzianum ESALQ 1306. The biological products were applied alone or in combination. The lowest NPF (final nematode population) occurred in plants treated with P. chlamydosporia and Carbofuran. P. chlamydosporia was the most effective biological agent in the management of M. incognita. There was a reduction in production with an increase in the nematode population. The highest application costs of management methods for M. incognita race 1 per hectare were for three and two applications of Carbofuran and three applications of P. chlamydosporia + T. harzianum. The treatments with lowest application costs were one application of T. harzianum and one application of P. chlamydosporia. It was concluded that all treatments were efficient for the management of M. incognita race 1, causing a decrease in the roots and soil population.

 

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Published

10-05-2021

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Section

Agronomy