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Alternativas Para El Manejo De Artrôpodos En Vegetales Orientales En La Repûblica Dominicana

Author

Listed:
  • Serra, Colmar S.
  • Medrano, Sardis
  • Ayala, Carlos A.
  • Galicia, Jose A.
  • Baltensperger, Samuel

Abstract

Los vegetales orientales generan anualmente US$50-60 millones. La competitividad estâ amenazada debido a altos costos de production (plaguicidas), asi como residuos y/o plagas cuarentenarias detectados en productos exportados, lo que demanda una aplicaciôn de conceptos MIP. En un ensayo en vainitas chinas, en la finca de un productor en la provincia de La Vega, se compararon ocho tratamientos: Tl-Testigo; T2-Aceite de guanâbana (Annona muricata); T3-el hongo entomopatôgeno Entomophthora virulenta combinado con Aceite de semillas de nim (Azadirachta indica); T4-Thiametoxam (sistémico); T5-Carbosulfan (sistémico, 2x) sustituido por Diafenthiuron (4x); T6-Etofenprox; T7-Pymetrozine; y T8- Lambda-Cyhalothrin. Usando conteos directos y trampas pegantes amarillas, se determine» la influencia de los tratamientos sobre poblaciones de importantes plagas y enemigos naturales. Un fuerte desarrollo initial de colonias de âfidos antecediô la apariciôn de sintomas virôticos, dependiendo de la eficiencia manejando sus vectores. Sin embargo, ninguno de los tratamientos fue suficientemente eficaz en retrasar la infection, especialmente los T1-T2. Todos los tratamientos incrementaron rendimientos y calidad de los frutos, especialmente los T6-T8, resultando los T8, T3 y T2 los mâs rentables, debido a sus costos mâs bajos.

Suggested Citation

  • Serra, Colmar S. & Medrano, Sardis & Ayala, Carlos A. & Galicia, Jose A. & Baltensperger, Samuel, 2007. "Alternativas Para El Manejo De Artrôpodos En Vegetales Orientales En La Repûblica Dominicana," 43rd Annual Meeting, September 16-22, 2007, San Jose, Costa Rica 256301, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs07:256301
    DOI: 10.22004/ag.econ.256301
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    Keywords

    Crop Production/Industries;

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