Response of the sapote fruit fly, Anastrepha serpentina (Diptera: Tephritidae), to commercial lures and trap designs in sapodilla orchards
Keywords:
CeraTrap, Biolure, Multilure, bottle trapAbstract
Anastrepha serpentina (Wiedemann) (Diptera: Tephritidae) is one of the least studied of the pestiferous Neotropical tephritid flies despite its propensity to attack several commercial fruit crops, mainly in the Sapotaceae (Ericales). Few studies have been performed to improve monitoring traps and lures specifically targeted at this species. Management currently is achieved by using the hydrolyzed protein lure (Captor® with borax) and a Multilure® trap in combination with chemical control measures. Here, we aimed to evaluate the efficacy of other commercial lures and traps for monitoring purposes in sapodilla orchards. The efficacies of 3 commercial lures, namely, Captor (chemically hydrolyzed protein) + borax, CeraTrap® (enzymatically hydrolyzed protein), and Biolure® (dry lure based on ammonium acetate and putrescine), were compared in 2 independent experiments. In a 1st experiment, CeraTrap caught twice as many A. serpentina flies per trap per day as Captor + borax. In a 2nd experiment, trapping efficacy of CeraTrap and Biolure was similar, and both lures caught more A. serpentina flies per day per trap than Captor + borax. No significant differences in the capture of A. serpentina were observed among a Multilure trap, a Tephi Trap®, or a simple polyethylene bottle trap, when baited with CeraTrap. This study contributes with additional information on the response of A. serpentina to commercial lures, showing that CeraTrap could represent an effective alternative to monitor this pest using simple and cheap polyethylene bottle traps.
Resumen
Anastrepha serpentina (Wiedemann) (Diptera: Tephritidae) es una de las especies de tefrítidos Neotropicales menos estudiada a pesar de que tiende a atacar varios frutos comerciales, principalmente de las Zapotáceas (Ericales). Pocos estudios han sido realizados para mejorar trampas y cebos en el monitoreo de esta especie. El manejo actual se realiza utilizando la proteína hidrolizada (Captor® con bórax) y una trampa Multilure® en combinación con controles químicos. Nuestro objetivo fue evaluar la eficacia de otros cebos comerciales y trampas con miras al monitoreo en huertos de Chico Zapote. La eficacia de tres cebos comerciales, Captor (proteína de hidrólisis química) + bórax, CeraTrap® (proteína de hidrólisis enzimática), y Biolure® (cebo seco a base de acetato de amonio y putrescina) fue comparada en dos experimentos diferentes. En un primer experimento CeraTrap capturó dos veces más moscas de A. serpentina por trampa y día que Captor + bórax. En un segundo experimento, la eficacia de captura de CeraTrap y Biolure fue similar, y ambos cebos capturaron más moscas de A. serpentina por trampa y día que Captor + bórax. No hubo diferencias significativas de captura de A. serpentina entre una trampa Multilure, una Tephi Trap® o una trampa simple hecha con una botella de polietileno. Este estudio provee información adicional sobre la respuesta de A. serpentina a cebos comerciales en donde CeraTrap y una simple trampa hecha con una botella de plástico puede representar una alternativa eficaz para el monitoreo de esta.
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