Access of Coptoborus ochromactonus (Coleoptera: Curculionidae: Scolytinae) in plantations the Ochroma pyramidale (Cav. ex Lam.)

Authors

  • Jessenia Castro Olaya Universidad Austral de Chile, Facultad de Ciencias Forestales y Recursos Naturales
  • Dolly Lanfranco Leverton Universidad Austral de Chile, Facultad de Ciencias Forestales y Recursos Naturales
  • Malena Martinez Chévez Universidad Técnica Estatal de Quevedo. Facultad de Ciencias Ambientales
  • Marcelino Guachambala Plantaciones de Balsa Plantabal S. A.
  • Carlos Belezaca Pinargote Universidad Técnica Estatal de Quevedo. Facultad de Ciencias Ambientales
  • Anna A. Obrebska Instituto Nacional de Investigaciones Agropecuarias-INIAP

DOI:

https://doi.org/10.18779/cyt.v10i2.203

Keywords:

SCOLYTIDO, BALSA, DIE BACK, INCIDENCE, DASOMETRIC PARAMETERS

Abstract

Coptoborus ochromactonus, is a recently described scolytid pest associated with the balsa plantations, causing damage and death in young trees (from 12 to 36 months). The objectives were: Characterize the distribution of damage into the tree, define the incidence of C. ochromactonus in two years old plantations in Buena Fe and El Empalme, and evaluate dasometrics parameters of its host. C. ochromactonus has two types of damages that correspond to the initial attack, when the shaft is unsuccessful and no mass attack, whereas when it occurs in upper branches and exceed 300 drillings produces symptoms of dieback and then spike the shaft. The incidence of injury was higher in El Empalme 22.90%, attacking trees 20.10 cm dbh and 18.40 m high, relative to Buena Fe, with 11.20%, 18.20 attacking trees dbh cm and 15.90 m high

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Published

2017-12-01

How to Cite

Castro Olaya, J., Lanfranco Leverton, D., Martinez Chévez, M., Guachambala, M., Belezaca Pinargote, C., & Obrebska, A. A. (2017). Access of Coptoborus ochromactonus (Coleoptera: Curculionidae: Scolytinae) in plantations the Ochroma pyramidale (Cav. ex Lam.). Ciencia Y Tecnología, 10(2), 19–23. https://doi.org/10.18779/cyt.v10i2.203

Issue

Vol. 10 No. 2 (2017): July-December (2017)

Section

Environmental Science

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