STUDIES OF THE ECONOMIC LEVEL OF DAMAGE OF THE POTATO MOTH, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)
Main Article Content
A study was carried out at "La Selva" Experiment Station, located at Rionegro (Antioquia, Colombia), during the second semester of 1986 and the first of 1987. The objective was to determine the parameters related to the economic level of damage caused by Phthorimaea operculella (Zeller). The leaf area damaged by the insect at the field was 6.29 ± 132 cm2 simulated percentages of 0, 25, 50 and 75% of defoliation at once and when the plant was 35, 55 and 75 days old, indicated that the levels above 25% affected the yield and the tuber quality. A regression analysis to measure the relationship between foliar damage and yield for each one of the crop ages studied and one to three insecticide applications showed the following results: For the 35 days old crop with one and three insecticide applications, the damage levels were 3.19 and 9.6 worms by the plant. For the 55 days old crop with one and three insecticide applications, the damage levels were 2.44 and 7.35 worms by the plant. An for the 75 days old crop the damage levels were 4.48 and 6.65 worms by plants, respectively.
- ROSALBA HINCAPIE-V., HENRY A. OSPINA-Z., ALEX E. BUSTILLO-P., ALFREDO SALDARRIAGA-V., EVALUATION OF ENTOMOPATHOGEN Verticillium lecanii IN CONTROL OF THE APHID Mvzus persicae IN CHRYSANTHEMUMS , Revista Colombiana de Entomología: Vol. 16 No. 2 (1990)
- FRANCISCO J. POSADA-F., ALFREDO SALDARRIAGA-V., BIOLOGY, HABITS AND LARVAL POLYMORPHISM OF Callopistria floridensis (Guenée) (LEPIDOPTERA: NOCTUIDAE), LARVA DE LOS FERNOS , Revista Colombiana de Entomología: Vol. 11 No. 2 (1985)
- PIEDAD SACRAMENTO MEDINA, ALFREDO SALDARRIAGA-V., LUZ ELENA PÉREZ-G., Biology of Amitus fuscipennis (Mac Grown & Nebeker) under three ecological conditions in Rionegro (Ant.) , Revista Colombiana de Entomología: Vol. 20 No. 3 (1994)
- DIEGO A. CARDONA-C., MARTHA E. LONDOÑO-Z., JORGE E. JARAMILLO-N., Biologic studies of Copitarsia sp. (Lepidoptera: Noctuidae) under insectarium conditions , Revista Colombiana de Entomología: Vol. 30 No. 2 (2004)
- CLAUDIO FERNÁNDEZ-H., MARTHA E. LONDOÑO-Z., JORGE E. JARAMILLO-N., Plutella xylostella susceptibility to different native isolates of Beauvería bassíana and additional effect to other caulitlower Lepidoptera , Revista Colombiana de Entomología: Vol. 29 No. 2 (2003)
- ALFREDO SALDARRIAGA-V., ANGELA M. ALVAREZ, JORGE E. JARAMILLO, EFFECT OF POTATO YELOW VEIN: TRANSMITED BY THE VECTOR TRIALEURODES VAPORARIORUM ( WESTWOOD) IN POTATO , Revista Colombiana de Entomología: Vol. 14 No. 2 (1988)
- MARTHA CECILIA DIAZ, JOSE M. PULGARIN, ALFREDO SALDARRIAGA-V., INSECT-PATHOGEN RELATIONS IN THE PROBLEM OF THE YELLOWING OF THE POTATO VEINS , Revista Colombiana de Entomología: Vol. 16 No. 2 (1990)
- MARTHA CECILIA DIAZ, MAURICIO PULGARIN, ALFREDO SALDARRIAGA-V., METHOD FOR TESTING TRANSOVARIC TRANSMISSION OF PATHOGENS BY Trialeurodes vaporariorum AND RESULTS WITH THE CAUSE OF "YELLOW OF POTATO VEINS" , Revista Colombiana de Entomología: Vol. 17 No. 1 (1991)
Authors retain the copyright on their work and are responsible for the ideas expressed in them. Once a manuscript is approved for publication, authors are asked for a publication license for the term of legal protection, for all territories that allows the use, dissemination and disclosure of the same.