Economic threshold of Heliothis virescens in three Tobacco varieties from Cuba

https://doi.org/10.25100/socolen.v25i1.9749
Heliothis virescen Tobacco budworm Tobacco Economic treshold

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Published: Jun 30, 1999
Issue: Vol. 25 No. 1 (1999)
Section Agriculture / Research paper

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Authors

FELICIA PIEDRA-DÍAZ Instituto de Investigaciones de Sanidad Vegetal
FELICITA PALACIOS-VALDÉZ Laboratorio Provincial de Investigaciones de Sanidad Vegetal
NORMA LINARES-YERA Laboratorio Provincial de Investigaciones de Sanidad Vegetal
MIGUEL VÁZQUEZ-RODRÍGUEZ Instituto de Investigaciones de Sanidad Vegetal
Abstract

During the years 1986-1989 several investigations were carried out in order to de­termine the economic threshold of H. virescens (tobacco budworm ) in the tobacco crop on different varieties, being. Pinar del Rio (var.Criollo), La Habana (var. Corojo without any sun covering), and Villa Clara (var. Pelo de Oro) the provinces where the work was conducted. was determine(' the appropriate threshold taking into consideration the damage, infestation index, losses, and protection measures against this pest. The threshold of 9.3: 6.35 and 9.2 were obtained for each the ahoy mentioned varieties, respectively. It should be consi­dere(' these economic thresholds after transplantation to establish the control measures and to avoid the losses.

How to Cite
PIEDRA-DÍAZ, F., PALACIOS-VALDÉZ, F., LINARES-YERA, N., & VÁZQUEZ-RODRÍGUEZ, M. (1999). Economic threshold of Heliothis virescens in three Tobacco varieties from Cuba. Revista Colombiana De Entomología, 25(1), 33–36. https://doi.org/10.25100/socolen.v25i1.9749

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