Halyomorpha halys (Hemiptera: Pentatomidae) Response to Pyramid Traps Baited With Attractive Light and Pheromonal Stimuli
Keywords:
Brown marmorated stink bug, invasive, light trap, aggregation pheromoneAbstract
Halyomorpha halys Stål (Hemiptera: Pentatomidae) is an invasive insect that causes severe economic damage to multiple agricultural commodities. Several monitoring techniques have been developed to monitor H. halys including pheromone and light-baited black pyramid traps. Here, we evaluated the attractiveness of these traps baited with light alone, pheromone alone or the combination in comparison with unbaited traps throughout the growing season in regions with high and low H. halys population densities. In regions with high population densities in the Mid-Atlantic, all baited traps performed better than unbaited traps. During mid-season, traps containing lights captured more H. halys adults, while pheromone-baited traps captured greater numbers during late season. In low-density regions in the Pacific Northwest, all baited traps captured more H. halys adults than unbaited traps. In addition, we evaluated the influence of competing light sources associated with anthropogenic structures. When light traps were deployed next to these additional light sources, H. halys capture rates in pyramid traps baited with light were not significantly reduced. Overall, our results indicate that both light and pheromone traps can be used to detect H. halys activity under low and high-density populations.
Key Words: brown marmorated stink bug; invasive; light trap; aggregation pheromone
Resumen
Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) es un insecto invasor que causa graves daños económicos a múltiples productos agrícolas. Se han desarrollado varias herramientas de monitoreo, incluyendo feromonas y trampas negras de pirámide cebadas con luz, para monitorear H. halys. Aqui, evaluamos el atractivo de estas trampas cebadas con solamente luz, solamente feromona, o la combinación en comparación con las trampas no cebadas a lo largo de la temporada de crecimiento en las regiones con densidades altas y bajas de población de H. halys. En las regiones del Atlántico Medio con altas densidades de población, todas las trampas cebadas con feromona o luces funcionaron mejor que las trampas de control. Durante la mitad de la temporada, las trampas que contenían luces capturaron más adultos de H. halys, mientras que las trampas con cebo de feromonas capturaron un mayor número durante el final de la temporada. En regiones de baja densidad en el noroeste del Pacífico, las trampas con luces o feromonas capturaron más adultos de H. halys que las trampas de control. Además, se evaluó la influencia de la competencia de otras fuentes de luz asociadas con las estructuras antropogénicas. Cuando se pusieron las trampas de luz junto a estas fuentes de luz adicionales, las capturas de H. halys
en las trampas de pirámide cebadas con luz no se redujeron significativamente. En general, nuestros resultados indican que tanto la luz y las trampas de feromonas se pueden utilizar para detectar la actividad de H. halys en poblaciones en densidades bajas y altas.
Palabras Clave: chinche hedionda de color café marmorado; invasor; trampa de luz; feromona de agregación
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