Florida Entomologist (2001) 84, 239-242

Tong-Xian Liu and Bisong Yue (2001)
Comparison of some life history parameters between alate and apterous forms of turnip aphid (Homoptera: Aphididae) on cabbage under constant temperatures
Florida Entomologist 84 (2), 239-242
Abstract: Development, longevity, survivorship and fecundity of the alate and apterous forms of the turnip aphid, Lipaphis erysimi (Kaltenbach), were studied on cabbage under constant temperatures in the laboratory. The developmental durations for alate nymphs were 15.8, 9.5, 8.0 and 5.4 d at 15, 20, 25 and 30°C, respectively, and those for apterous nymphs were 13.9, 6.8, 6.1 and 5.0 d. Alate nymphs developed 1.9-3.0 d longer at 15, 20 and 25°C than the apterous nymphs, but the developmental durations between the alate and apterous forms were not significantly different at 30°C. The longevities of alate adults were 12.6, 17.7, 17.6, and 17.2 d at 15, 20, 25, and 30°C, respectively, compared with 25.3, 21.3, 17.5 and 11.7 d, respectively, for apterous aphids under the corresponding temperature regimes. Fecundity was also significantly less for alate adults than for apterous adults. Alate adults produced an average of 7.9, 37.9, 39.0, and 11.9 nymphs in their lifespan at 15, 20, 25 and 30°C, respectively, compared with 52.5, 90.8, 83, and 29.7 nymphs per apterous adult at the same temperature regimes.

Bajo temperaturas constantes en lanratorio, se estudió el desarrollo, la longevidad, la supervivencia y la fecundidad en col de las formas alada y áptera del áfido del nabo Lipaphis erysimi (Kaltenbach). El tiempo de desarrollo en ninfas aladas fue de 15.8, 9.5, 8.0 y 5.4 dias a 15, 20, 25 y 30°C respectivamente, mientras que en ninfas ápteras fue de 13.9, 6.8, 6.1 y 5.0 dias. Las ninfas aladas se desarrolaron de 1.9-3.0 dias más rápido a 15, 20 y 25°C que las ninfas ápteras, pero el tiempo de desarrollo entre las formas alada y áptera no fue significativamente diferente a 30°C. La longevidad de los adultos alados fue de 12.6, 17.7, 17.6 y 17.2 dias a 15, 20, 25 y 30°C respectivamente, comparada con 25.3, 21.3, 17.5 y 11.7 dias para los áfidos ápteros bajo los régimenes correspondientes de temperatura. La fecundidad también fue perceptiblemente menor para los adultos alados que para los adultos áptreos. Los adultos alados producen un promedio de 7.9, 37.9, 39.0 y 11.9 ninfas en su lapso de vida a 15, 20, 25 y 30°C respectivamente, comaparado con 52.5, 90.8, 83.0 y 29.7 ninfas por adulto áptero bajo el mismo régimen de temperaturas.
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Database assignments for author(s): Tong Xian Liu

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Lipaphis erysimi	Cabbage (Brassica oleracea)