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PLANTAS HOSPEDERAS DEL GEMINIVIRUS DEL RIZADO AMARILLO DE LA HOJA DE TOMATE (TYLCV-Is)'

Author

Listed:
  • Serra, C. A.
  • Polstona, J. E.
  • Concepcion, S.
  • Ortiz, M.
  • Nunez, J. B.
  • Benoit, P. F.

Abstract

Con la finalidad de conseguir métodos de protecciôn de tomate contra la penetration temprana de "moscas blancas" Bemisia tabaci (Genn.) (Homoptera: Aleyrodidae), vectores del Virus del Rizado Amarillo de la Hoja de Tomate (TYLCV), se evaluaron 9 métodos de protecciôn de semilleros, durante el periodo julio-septiembre de 1995. Se observô eue los tratamientos con Cobertura (mulch) de cascarilla de arroz, Cobertura de plâstico amarillo y plâstico color plateado tuvieron las poblaciones mâs altas de adultos de B. tabaci, mientras que las de los tratamientos del insecticida sistémico Imidacloprid, del Testigo y de dos tûneles de mallas (AntiVirus® y Avgol®) fiieron muy inferiores. Para la presencia de sintomas de geminivirosis, los tratamientos malla AntiVirus®, malla Avgol® y Barrera viva con sorgo fueron significativamente mâs bajos que los demâs tratamientos. En cuanto al efecto sobre el desarrollo de las plantas tomando como parâmetro la lloraciôn y fructification en los diferentes tratamientos, se observô que ésta fue mâs temprana en los tratamientos cobertura de plâstico amarillo, cobertura de plâstico plateado, testigo cobertura con cascarilla de arroz y banda amarilla pegante. Una cobertura de las plantas con mallas por 30, 45 ô 60 dias conlleva un atraso en el desarrollo. Se comprobô que la protecciôn de las plantas con mallas resultan en temperaturas mâs elevadas dentro de los canteros, con respecto a los demâs tratamientos.

Suggested Citation

  • Serra, C. A. & Polstona, J. E. & Concepcion, S. & Ortiz, M. & Nunez, J. B. & Benoit, P. F., 1997. "PLANTAS HOSPEDERAS DEL GEMINIVIRUS DEL RIZADO AMARILLO DE LA HOJA DE TOMATE (TYLCV-Is)'," 33rd Annual Meeting, July 6-12, 1997, Isabela, Puerto Rico 257015, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs97:257015
    DOI: 10.22004/ag.econ.257015
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    Agricultural and Food Policy;

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