Annals of the Entomological Society of America (1997) 90, 62-68

Kaihong Wang, James H. Tsai and Nigel A. Harrison (1997)
Influence of temperature on development, survivorship, and reproduction of buckthorn aphid (Homoptera: Aphididae)
Annals of the Entomological Society of America 90 (1), 62-68
Abstract: The development, survivorship, and reproduction of buckthorn aphid, Aphis nasturtii Kaltenbach, were evaluated at 7 constant temperatures (10, 15, 20, 25, 27, 30, and 35°C). The developmental periods of immature stages ranged from 33.9 d at 10°C to 5.7 d at 30°C. The lower developmental threshold for the buckthorn aphid was estimated at 6.5°C. The upper temperature threshold of 35.6°C for development of nymph was determined from a nonlinear biophysical model. The percentages of survivorship of immature stages varied from 60.0 to 87.5% within the temperature range of 15-30°C. However, survivorships were reduced to 15.2 and 37.5% at 10 and 35°C, respectively. The average longevity of adult females ranged from 30.2 d at 15°C to 7.0 d at 35°C. The average progeny per female was 55.0 at 15°C and 5.5 at 35°C. At 10°C the majority of adults failed to reproduce. The largest r_m (0.332) occurred at 27°C. Populations reared at 10 and 35°C had negative r_m values of -0.022 and -0.014, respectively. The mean generation time of the population ranged from 40.3 d at 10°C to 8.3 d at 35°C. It was evident that extreme temperatures prolonged development, increased mortality of immatures, shortened adult longevity, and reduced fecundity. The optimal range of temperature for A. nasturtii population growth was 20-30°C.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Nigel A. Harrison, James H. Tsai

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

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aphis nasturtii	Pigeonpea (Cajanus cajan)	U.S.A. (SE)