Evaluación de trampas para Rhynchophorus palmarum L. (Coleoptera: Curculionidae) en la costa de Oaxaca, México

Abstract

Objetivo: Evaluar la efectividad de las trampas CSAT modificada y PET en la captura del picudo negro del cocotero Rhynchophorus palmarum L. (Coleóptera: Curculionidae) en Río Grande, Tututepec, Oaxaca, México.Diseño/metodología/aproximación: Para capturar R. palmarum en una huerta de cocotero Enano Malayo Amarillo cv. Acapulco, durante 2016-2018 se instalaron trampas CSAT modificada y PET, ambas con Rincoforol como feromona y plátano Tabasco como cebo alimenticio. Con el registro de captura de cada siete días, se obtuvo el total mensual. Se utilizó un diseño de tratamientos de parcelas apareadas con seisrepeticiones y los resultados se compararon con la prueba de t de Student para muestras pareadas.
 Resultados: En los tres años del estudio, el promedio mensual de ejemplares capturados fue de 3.1 en la trampa CSAT modificada y de 1.5 en la PET (p<0.01); durante la época de lluvias (junio a octubre)se incrementó la captura. A medida que transcurrió el tiempo disminuyó el poder de atracción del Rincoforol, nulificándose después de 120 días.
 Limitaciones del estudio/implicaciones: No se tuvo ninguna en este estudio.
 Hallazgos/conclusiones: La trampa CSAT modificada fue más eficiente para capturar picudos negros del cocotero. La trampa PET es una opción inocua y más económica para disminuir las poblaciones de laplaga.

Perspectives for Synergic Blends of Attractive Sources in South American Palm Weevil Mass Trapping: Waiting for the Red Palm Weevil Brazil Invasion

“…The semiochemical is the primary control tool for this pest, participating in several mass-trapping opportunities with fresh and fermenting food lures. Much of the researchers’ concern has focused on the pure trapping ability of the devices [ 67 , 68 ], but studies on the cost/efficacy of attractant combinations [ 69 , 70 ] and the use of traps in ornamental palm polycultures [ 71 , 72 , 73 , 74 , 75 ] exist. Technology today suggests the usage of digital tools also to study the efficacy of traps [ 76 ].…”

“…The aggregation pheromone alone is not as effective as needed in capturing adult R. palmarum , even if released at around 30 mg/day into the environment. Evidence suggests that the synergy among the plant kairomones, the pheromone, rotting plant parts such as sugar cane stalks, and ethyl acetate significantly captured more insects [ 70 , 73 , 91 ].…”

“…Banana was the most attractive lure peaking on the seventh day of fermentation [ 75 ]. The efficiency of modified traps associated with pheromone and bananas demonstrated one more opportunity for R. palmarum mass-trapping [ 73 ]. For the control of R. palmarum, the use of pieces of palm red-rings-infested stipe impregnated with insecticide also appears valuable despite the doubt raised by the possible nematode dispersion [ 26 ].…”

EFFICACY AND COST EFFICIENCY OF TRAPS FOR MASS CAPTURE OF Rhynchophorus palmarum L. IN A MEXICAN Cocos nucifera L. ORCHARD

“…Likewise, there is the possibility that at the end of autumn the temperature is lower and with this it is preferable for the flight and population fluctuation of R. palmarum, compared to spring and summer, where temperatures are higher. In this sense, Ovando-Cruz et al (2019) reported an increase in the capture of R. palmarum in the month of December (3.67 adults/trap/week), when temperatures could be lower compared to the months of July (1.80 adults/trap/week) and august (2.03 adults/trap/week), where temperatures could be higher. It is clear that more studies are required to clarify these scenarios, if we want to know the behavior of R. palmarum and use this information for its integrated management in coconut orchards.…”

Taxonomy, Biology, Symbionts, Omics, and Management of Rhynchophorus Palm Weevils (Coleoptera: Curculionidae: Dryophthorinae)

“…Population dynamics of Rhynchophorus species can be tracked over time using baited pheromone traps, which can be used to assess effects of climate, location, host palm species, trap-type efficacy, and time of year on weevil densities (2,38,131,161,180,202). Weevil density time series data derived from trap capture data can be correlated with palm mortality rates (110) and used to determine impacts of multiyear management programs (102) and to evaluate spatiotemporal factors influencing range expansion patterns following invasions into new areas (85) or infestation patterns in commercial palm plantations (49).…”