Environmental Entomology (1984) 13, 236-242

C.G. Summers, R.L. Coviello and A.P. Gutierrez (1984)
Influence of constant temperatures on the development and reproduction of Acyrthosiphon kondoi (Homoptera: Aphididae)
Environmental Entomology 13 (1), 236-242
Abstract: The response of Acyrthosiphon kondoi Shinji was evaluated at constant temperatures from 4.4 to 32.2°C. The lower and upper thresholds for development were calculated to be 3.45 and 27.1°C, respectively. Development and reproduction occurred at 4.4°C, but no development occurred at 32.2°C. At 29.4°C, aphids reached adulthood but failed to reproduce. The mean total developmental time was 144.93 ± 7.77 D°. The prepartum period for alates was 43% longer than for aptera. Mean physiological time to 50% mortality was 683.08 ± 50.47 D°, and mean reproductive period lasted 473.80 ± 37.26 D°. Maximum r_m and minimum doubling time and mean generation time, on a physiological time scale, were at 10.0 to 18.3°C. The largest r_m (0.0161) and shortest doubling time (43.08 D°) occurred at 15.6°C. Physiological time was found to be much more realistic in describing population dynamics of this species than was calendar time.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Andrew Paul Gutierrez

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.
	Acyrthosiphon kondoi