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- W1940768688 abstract "<p>Este trabajo describe los parámetros biológicos y poblacionales del pulgón negro, <em>Aphis craccivora</em> Koch,<strong> </strong>sobre fríjol caupí (<em>Vigna unguiculata</em> (L. Walp.)), bajo condiciones de laboratorio. Los insectos se criaron sobre plántulas individualizadas a una temperatura promedio de 28 °C, humedad relativa de 70 % y fotoperiodo de 12 horas. Los parámetros medidos fueron periodo ninfal, fecundidad, supervivencia, periodo pre-reproductivo y aspectos relativos a la tasa de crecimiento del áfido. La tasa reproductiva neta R (<sub>0</sub>) fue 66,00, la tasa intrínseca de crecimiento del áfido (r<sub>m</sub>) fue 0,51, el tiempo de duplicación de la población (TD) fue 2,3. Se analizaron las curvas de supervivencia (lx), fecundidad (mx), la duración del período ninfal y reproductivo del áfido. Los resultados difieren de los realizados en otras variedades de fríjol caupí, evidenciándose la susceptibilidad de la variedad criolla usada por los agricultores en la costa Caribe colombiana.</p><p><strong>Biology of Black Aphid (<em>Aphis Craccivora</em>: Aphididae) on Cowpea (<em>Vigna Unguiculata</em>, Fabaceae)</strong> </p><p>This research describes the population and biological parameters of the black aphid (<em>Aphis craccivora</em> Koch) on cowpea bean (<em>Vigna unguiculata</em> (L. Walp.)), under laboratory conditions. The insects were raised on individualized seedlings in an average temperature of 28 °C, at 70 % relative humidity during a photoperiod of 12 hours. The parameters measured were the nymphal period, fecundity, longevity, pre-reproductive period and aspects of aphid growth rate. The net reproductive rate R (0) was 66.00, the intrinsic g rate of increase of the aphid (rm) was 0.51, and the population doubling time (TD) was 2.3. Survival curves (lx), fecundity (mx), the duration of nymphal and the reproductive period of the aphid were analyzed. The results differ from those found in other varieties of cowpea beans, demonstrating the susceptibility of the native variety used by farmers in the Colombian Caribbean coast.<strong></strong></p>" @default.
- W1940768688 created "2016-06-24" @default.
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- W1940768688 date "2015-07-24" @default.
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- W1940768688 title "BIOLOGÍA DEL ÁFIDO NEGRO (Aphis craccivora: APHIDIDAE) SOBRE FRÍJOL CAUPI (Vigna unguiculata, FABACEAE)" @default.
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- W1940768688 doi "https://doi.org/10.15446/abc.v20n3.43064" @default.
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