Abstract
An electronic system that recorded feeding activity was used in replicated trials conducted to evaluate 25Solarium cultivars and 1Pelargonium (geranium) cultivar for acceptability to the green peach aphid,Myzus persicae (Sulzer). The number of probes and the time spent in probing were found to be indicators of relative acceptability; the number of feedings and the time spent in feeding were not. Although tests as brief as 15 min were useful in screeningSolarium germplasm for resistance to the green peach aphid, 30 min tests were deemed more reliable. An index of acceptability was prepared by using the potato variety Katahdin as a standard for comparison.
Resumen
Un sistema electrónico que registraba la actividad de ingestión fue utilizado en pruebas repetidas para evaluar 25 cultivaresSolanum y un cultivar Pelargonium (geranio) por aceptabilidad del áfidoMyzus persicae (Sulzer). Se consideró que el número de pruebas y el tiempo empleado en los ensayos eran indicadores de la aceptabilidad relativa; no así el número de ingestiones ni el tiempo empleado en alimentarse. A pesar de que pruebas tan rápidas como de 15 minutos fueron útiles para tamizar germplasma deSolanum para resistencia al áfidoMyzus persicae, se consideró más seguras las pruebas que requieren 30 minutos. Se preparó un índice de aceptabilidad utilizando papas de la variedad Katahdin como comparación.
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Literature Cited
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Hemiptera (Homoptera): Aphididae
Mention of a proprietary product does not constitute a recommendation or an endorsement by the USDA.
Formerly Potato Insect Investigations, N.E. Plant, Soil and Water Laboratory, USDA-SEA, Orono, Marine 04473.
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Holbrook, F.R. An index of acceptability to green peach aphids forSolanum germplasm and for a suspected non-host plant. American Potato Journal 57, 1–6 (1980). https://doi.org/10.1007/BF02852749
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DOI: https://doi.org/10.1007/BF02852749