Evaluation of plant extracts in the control of Oligonychus ilicis (McGregor, 1917) (Acari: Tetranychidae) on coffee tree

Authors

  • Thaiana Mansur Botelho de Carvalho EPAMIG-CTSM/EcoCentro
  • Paulo Rebelles Reis EPAMIG-CTSM/EcoCentro
  • Denilson Ferreira de Oliveira Universidade Federal de Lavras - UFLA
  • Geraldo Andrade Carvalho Universidade Federal de Lavras - UFLA
  • Douglas Antônio de Carvalho Universidade Federal de Lavras - UFLA

Keywords:

Coffea Arabica, botanic insecticides, ovicidal effect, topic effect, residual effect

Abstract

Oligonychus ilicis (McGregor, 1917) (Acari: Tetranychidae) was already referred to as the second pest in importance to the coffee tree Conillon, regarded as more sensitive to the mite than Arabic. The application of synthetic pesticides in its control may provoke negative impacts to both environment and man. Alternatively to the use of such chemicals, others less impacting have appeared as for example, plant extracts. The present work was intended to evaluate the effect of plant extracts collected in the southern region of Minas Gerais on the mortality of the mite O. ilicis. The experiments were carried out on coffee tree leaves detached of plants. 79 extracts with four replicates of ten adult females were tested. The application of the chemicals in every test was done in Potter tower. With the most promising plant extracts, selected in previous trials, tests of ovicidal, topic, residual and different concentration effects were performed. The extracts of Annona squamosa L; Calendula officinalis L; Coffea arabica L, Ricinus communis L; Ginkgo biloba L and Nepeta cataria L. caused increased mortality in the residual effect test and presented no ovicidal effect to O. olicis. The obtained results show that the extract of A. squamosa was the most toxic to O. ilicis in the different tests accomplished.

Author Biographies

Thaiana Mansur Botelho de Carvalho, EPAMIG-CTSM/EcoCentro

Paulo Rebelles Reis, EPAMIG-CTSM/EcoCentro

Engenheiro Agrônomo, DSc., EPAMIG-CTSM/EcoCentro – Caixa Postal 176 - 37200-000 Lavras, MG. Pesquisador do CNPq

Denilson Ferreira de Oliveira, Universidade Federal de Lavras - UFLA

Químico, DSc., Departamento de Química, Universidade Federal de Lavras/UFLA – Caixa Postal 3037 - 37200-000 Lavras, MG

Geraldo Andrade Carvalho, Universidade Federal de Lavras - UFLA

Engenheiro Agrônomo, DSc., Departamento de Entomologia, Universidade Federal de Lavras/UFLA – Caixa Postal 3037 - 37200-000 Lavras, MG

Douglas Antônio de Carvalho, Universidade Federal de Lavras - UFLA

Engenheiro Agrônomo, DSc., Departamento de Biologia, Universidade Federal de Lavras/UFLA – Caixa Postal 3037 - 37200-000 Lavras, MG

Published

2008-12-27

How to Cite

CARVALHO, T. M. B. de; REIS, P. R.; OLIVEIRA, D. F. de; CARVALHO, G. A.; CARVALHO, D. A. de. Evaluation of plant extracts in the control of Oligonychus ilicis (McGregor, 1917) (Acari: Tetranychidae) on coffee tree. Coffee Science - ISSN 1984-3909, [S. l.], v. 3, n. 2, p. 94–103, 2008. Disponível em: http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/79. Acesso em: 30 sep. 2022.

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Articles