Journal of Entomology (2008) 5, 133-137

Arshad Ali and Parvez Qamar Rizvi (2008)
Effect of varying temperature on the survival and fecundity of Coccinella septempunctata (Coleoptera: Coccinellidae) fed on Lipaphis erysimi (Hemiptera: Aphididae)
Journal of Entomology 5 (2), 133-137
Abstract: The observations on the survival and fecundity of Coccinella septempunctata at varying temperatures viz., 18±1, 24±1°C and 28±1°C coupled with 65±5% RH and 12 h L: 12 h D photoperiod under laboratory condition was made for two successive generations. The highest potential fecundity and net reproductive rate of C. septempunctata were obtained at 24±1°C (165.67 eggs/female and 41.09 females/female/generation, respectively) and the lowest at 28±1°C (146.63 eggs/female and 29.70 females/female/generation, respectively). Finite, intrinsic and annual rate of increase were however, found maximum at 28±1°C (1.0876, 0.0840 females/female/day and 2.04x10¹³/annum, respectively) and minimum at 18±1°C (1.0794, 0.0764 females/female/day and 1.281x10¹²/annum, respectively). The mean length of generation and doubling time was found minimum at 28±1°C (40.77, 8.26 days, respectively) and maximum at 18±1°C (48.27 and 9.08 days, respectively).
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Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
rearing/culturing/mass production

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Lipaphis erysimi
Coccinella septempunctata (predator)	Lipaphis erysimi