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Consumption of Bait Solutions by Anastrepha Suspensa

Herbert N. Nigg, Rhonda A. Schumann, J. J. Yang and Suzanne Fraser
The Florida Entomologist
Vol. 90, No. 2 (Jun., 2007), pp. 370-377
Stable URL: http://www.jstor.org/stable/4494146
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Consumption of Bait Solutions by Anastrepha Suspensa
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Abstract

Nu-Lure and other protein solutions were presented to Anastrepha suspensa in J-tubes and consumption was quantified spectrophotometrically. In choice comparisons, flies consumed more or equal water compared to Nu-Lure and more Nu-Lure compared to Bragg's Liquid Aminos, corn steep liquor, NZ case, pepticase, Solulys, soy hydrolysate, Torula yeast, whey, and yeast enzymatic hydrolysate. Consumption of protein solutions was one-half or less than 0.2 M sucrose, the positive control. The addition of 0.2 M sucrose or 0.2 M fructose to Nu-Lure did not increase the consumption of Nu-Lure compared to the consumption of sucrose alone, suggesting that Nu-Lure negates the phagostimulant properties of sucrose and possibly fructose for A. suspensa. If higher consumption rates of a bait/toxicant mixture is a goal, 0.2 M sucrose would be a better choice than the protein solutions tested, including Nu-Lure. /// Se suministró Nu-Lure así como otras soluciones protéicas a individuos de Anastrepha suspensa en tubos "J" y se cuantificó por via fotométrica el consumo de estas proteinas durante un intervalo adecuado de tiempo. En las comparaciones seleccionadas se observó que el consumo de agua se mantuvo igual o superior al de Nu-Lure; asimismo, el consume de esta proteina fue superior al observado para Amino Líquido de Bragg, licor de maiz, NZ case, pepticase, Solulys, hidrosilato de soya, levadura de Torula y suero e hidrosilato enzimático de levadura. En general, el consumo de soluciones protéicas se mantuvo por debajo de la mitad del correspondiente al control positivo de sacarosa 0.2 M. La adición de sacarosa o fructosa (ambos a la concentraci6n de 0.2 M), a Nu-Lure no incrementó el consumo de dicha proteina en comparación con el consume de azúcar, lo que sugiere que Nu-Lure podría eliminar las propiedades fagoestimulantes de la sacarosa y posiblemente tambien de la fructosa enA. suspensa. En aquellos casos en que se desea alcanzar velocidades de consumo mas elevadas de agentes tóxicos mezclados con el sebo correspondiente por parte de A. suspensa, la solución de sacarosa 0.2 M podría constituir una mejor alternativa que las soluciones protéicas prepadas, incluído el Nu-Lure.

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