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A simple method for trapping "Hylobius abietis" (L.) alive in northern Spain
handle: 10261/45361
[ES] Hylobius abietis (L.) es la plaga con mayor repercusión económica en plántulas de las repoblaciones forestales de coníferas en áreas recién cortadas en Europa. Los adultos causan daños importantes alimentándose de la corteza de las plantas jóvenes. Durante los últimos 20 años varios estudios han tratado de encontrar un método eficaz de captura de este insecto en el norte de Europa, sin embargo no existe ninguna información de este tipo en el sur de Europa. En este estudio empleamos alfa-pineno y esencia de trementina en combinación con etanol como atrayentes, y corteza o ramas de pino como sustrato de las trampas. Como era esperado, se encontraron diferencias significativas en las capturas de H. abietis entre atrayentes. La combinación de alfa-pineno y etanol mostró cerca de 7 veces más capturas que el control. Sin embargo, no hubo diferencias significativas entre el uso de alfa-pineno y de esencia de trementina como atrayentes. También se observaron diferencias significativas en las capturas de H. abietis entre los sustratos. Las trampas de corteza de pino impregnada con una gran cantidad de trementina y etanol mostraron cerca de 11 veces más capturas que las trampas con ramas de pino impregnadas de la misma manera. Por lo tanto, el uso de corteza de pino y esencia de trementina (40 mL) y etanol (20 mL) se presenta como una buena y barata alternativa para la captura de ejemplares vivos de H. abietis en España.
[EN] Hylobius abietis (L.) is the most economically important pest of coniferous seedlings in clear-cut areas in Europe. Adult weevils cause extensive damage by feeding on the bark of newly planted seedlings on clear felled coniferous stands. During the last 20 years, several studies have tried to find an effective method for trapping H. abietis in north Europe, but there is no information for the warmer countries of Southern Europe. In this study, alpha-pinene and turpentine in combination with ethanol as attractants, and pine bark or pine branches as trap substrate were used to trap alive H. abietis in NW Spain. The combination of alpha-pinene and ethanol obtained nearly 7-fold greater captures than the control. However, there were no significant differences between alpha-pinene and turpentine. The catches were also significantly affected by the substrate used in the traps. Fresh pine bark impregnated with turpentine and ethanol achieved nearly 11-fold greater captures than branches as substrate. The use of pine bark plus turpentine (40 mL) and ethanol (20 mL) appeared as an effective and cheap alternative to capture H. abietis in Spain.
Projects INIA RTA05-173 and Xunta de Galicia PGIDIT06PXIC502155PR.
1 tabla, 1 gráfica.
Peer reviewed
Forest pests, Pest control, Ethanol, Turpentine, Spain, Pinene, Hylobius abietis, Trapping, Attractants, Pinus pinaster, Herbivory
Forest pests, Pest control, Ethanol, Turpentine, Spain, Pinene, Hylobius abietis, Trapping, Attractants, Pinus pinaster, Herbivory
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