Formosan Entomologist (2007) 27, 293-302

Mei-Hwa Kuo and Hui Chianglin (2007)
[Temperature dependent life table of Brevicoryne brassicae (L.) (Hemiptera: Aphididae) on radish]
Formosan Entomologist 27 (4), 293-302
Abstract: The effect of temperature on the life history traits of the cabbage aphid, Brevicoryne brassicae (Linne.), cultured on seedlings of radish plant (Raphanus sativus L.) in the laboratory at 70-80% RH and a photoperiod of 12 : 12 (L : D), was evaluated at 5, 10, 15, 20, 25 and 30 ± 1°C. At 30°C, all cabbage aphids failed to survive. The results showed that the developmental time of immatures decreased from 72.3 days at 5°C to 9.1 days at 25°C. According to the linear regression analysis of development rate and temperature between 5 and 25°C, overall immature development required 198.8 degree-days above 2.2°C. Adult longevity decreased from 16.9 days at 10°C to 7.8 days at 25°C, but adult aphids at 5°C with the shortest longevity (6.3 days) failed to reproduce. The intrinsic rate of increase (r_m) was the lowest at 10°C (0.052 offspring/female/d), and was the highest at 25°C (0.138 offspring/female/d). The population reared at 15°C had the highest net reproductive rate (R_o = 18.8 offspring/female). The mean generation time (GT) decreased as the temperature increased from 40.6 days at 10°C to 14.5 days at 25°C. The total life cycle of B. brassicae ranges from 15-78 days and is greatly influenced by temperature, while the life cycle is shortened at higher temperatures.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)
Database assignments for author(s): Mei Hwa Kuo

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
environment - cropping system/rotation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Brevicoryne brassicae	Radish (Raphanus sativus)	Taiwan