Inexpensive traps for use in mass trapping Anastrepha ludens (Diptera: Tephritidae)
Keywords:
Anastrepha ludens, inexpensive traps, CeraTrap, mass trappingAbstract
Mass trapping is being developed to control the fruit fly Anastrepha ludens (Loew) (Diptera: Tephritidae) in some citrus-growing areas of Mexico using a trap-lure pack composed of CeraTrapR lure and a specific bait station (MS2R). The technique is based on placing a sufficient density of baited traps so that enough flies are captured to account for an important reduction in fruit infestation in the orchard. Trap-lure efficacy, trap density and cost ratio are crucial for broad implementation of this technique by growers. The use of handmade traps, constructed from 500 mL plastic bottles, with 3 10 mm holes at 2⁄3 up from the base, had similar attraction but captured more flies under caged conditions than 2 commercial traps sold in Mexico for this purpose. Under field conditions, the capture of A. ludens with plastic bottle traps was statistically superior to that of MS2R traps. When placed at a density of 40 traps per ha in an orange (Citrus sinensis [L.]; Rutaceae) orchard, bottle traps had a significantly higher capture rate than a similar density of MS2 traps and provided satisfactory crop protection, with 0.3-2.3% of fallen fruits infested at harvest. The low cost of this trap, (~US$ 0.18), has the potential to greatly reduce mass trapping costs and could favor broad implementation of this strategy in Latin American countries that produce fruit crops affected by A. ludens.
Las estrategias de trampeo masivo para el control de Anastrepha ludens (Loew) (Diptera: Tephritidae) estan siendo desarrolladas en algunas zonas citricolas de Mexico mediante el uso de la estacion cebo MS2R con el cebo liquido CeraTrapR. La tecnica se basa en la colocacion de una densidad suficiente de trampas que capturen un elevado numero de moscas que reduzca la cantidad de fruta infestada en el huerto. La eficacia de la combinacion trampa/cebo, la densidad de trampas y el coste son cruciales para una amplia implementacion de esta tecnica por parte de los productores. Las trampas fabricadas manualmente con botellas de plastico de 500 mL, con tres agujeros de 10 mm a 2⁄3 de la altura desde la base, tuvieron la misma atraccion pero capturaron mas moscas en condiciones de jaula que dos trampas comerciales de Mexico. En condiciones de campo, la captura de A. ludens con trampas construidas con botellas de plastico fue significativamente superior a la de la trampa MS2R. Cuando se colocaron trampas a una densidad de 40 por ha en un huerto de naranja (Citrus sinensis [L.]; Rutaceae), las construidas con botellas de plastico tuvieron un nivel de capturas significativamente mas alto que las trampas MS2R a la misma densidad, y proporcionan una proteccion satisfactoria del cultivo con 0.3-2.3% de frutos caidos infestados en el momento de la recoleccion. El bajo coste de esta trampa (~US$ 0.18) tiene el potencial de mejorar los costes de trampeo masivo y podria favorecer un amplio uso de esta estrategia en paises de Latinoamerica que tienen cultivos frutales atacados por A. ludens.
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