Journal of Pest Science (2005) 78, 133-137

Serdar Satar, Ulrich Kersting and Nedim Uygun (2005)
Effect of temperature on development and fecundity of Aphis gossypii Glover (Homoptera: Aphididae) on cucumber
Journal of Pest Science 78 (3), 133-137
Abstract: The developmental time, survivorship and reproduction of Aphis gossypii Glover was evaluated on detached cucumber leaves at nine constant temperatures ranging from 15±1°C to 35±1°C in 2.5°C increments in the laboratory. Developmental periods of immature stages ranged from 10.8 days at 15°C to 4.1 days at 30°C and 32.5°C. Constant 35°C was lethal to immature stages of A. gossypii. The lower developmental threshold for the cotton aphid was estimated at 6.0°C and it required 92.6 degree-day development for a first instar to become adult. The average reproduction rate was 82.1 nymphs female^-1 at 25°C and 2.3 nymphs female^-1 at 32.5°C. The mean generation time of the population ranged from 6.8 days at 32.5°C to 22.8 days at 15°C. The highest per capita growth rate (rm=0.526) occurred at 25°C and the lowest at 15°C (rm=0.208) and 32.5°C (rm=0.132). It was evident that temperatures over 30°C prolonged development, increased mortality of immature stages, shortened adult longevity and reduced fecundity. The optimal range of temperature for population growth of A. gossypii on cucumber was very broad and ranged between 22.5°C and 30°C.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Serdar Satar, Nedim Uygun

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.
	Aphis gossypii	Cucumber (Cucumis sativus)