Alternativas biológicas para el manejo de Coptoborus ochromactonus en el cultivo de Balsa (Ochroma pyramidale)

The tart research on the biological alternatives for the management of Coptoborus ochromactonus in the culture of Balsa (Ochroma pyramidale); This is an insect that attacks raft crops, causing a reduction in yields. Various findings indicate that there are biological alternatives that can control the pest attack through the application of beneficial organisms such as Beauveria bassiana and Metarhizium anisopliae. The conclusions are as follows: C. ochromactonus causes two initial attacks, on the stem or upper branches of the raft, and in the latter, depending on the amount of perforations, symptoms such as wilting and death of the foliage occur, with a subsequent massive attack throughout the shaft. Attacks by C. ochromactonus are directed at trees with average growth diameters between 17.50 and 20.10 cm; the efficacy of the Beauveria bassiana and Metarhizium anisopliae organisms, used as a control alternative for C. ochromactonus which presented average values that are over 80%, with mortality averages 55% to 100%; The incidence of C. ochromactonus attack is concentrated in all plantation ages, in localities with different ecological conditions, attacking 3-year-old plantations with greater intensity.

• 1. Verfasser: Rocafuerte Vergara, José Luis (author)
• Format: bachelorThesis
• Veröffentlicht: 2021
• Schlagworte: Control biológico; Coptoborus ochromactonus; Balsa
• Online Zugang: http://dspace.utb.edu.ec/handle/49000/10238