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Biological Control
Volume 3, Issue 1, March 1993, Pages 27-33
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Copyright © 1993 Academic Press. All rights reserved.

Regular Article

Comparative Developmental and Reproductive Biology of Three Populations of Propylea quatuordecimpunctata (Coleoptera: Coccinellidae)


This article is not included in your organization's subscription. However, you may be able to access this article under your organization's agreement with Elsevier.

Obrycki J. J., Orr D. B., Orr C. J., Wallendorf M. and Flanders R. V.

Iowa State Univ Sci & Technol, Dept Entomol, Ames, IA 50011, USA; Iowa State Univ Sci & Technol, Dept Stat, Ames, IA 50011, USA and Natl Biol Control Inst, Hyattsville, MD 20782, USA

Available online 30 April 2002.


Comparative studies showed no measurable differences among three populations of Propylea quatuordecimpunctata L. (Coleoptera: Coccinellidae) in their developmental and reproductive responses to temperature or photoperiod. Populations of P. quatuordecimpunctata from Canada, France, and Turkey reared on a diet of pea aphids, Acyrthosiphon pisum (Harris), at constant temperatures from 14 to 30°C required approximately 212 degree days (DD) > 10°C to complete preimaginal development. Survival of the three populations generally was highest at 22 and 26°C. On the basis of rearing under five constant-temperature conditions, the Turkish population produced the lowest percentage females (39%), whereas females of the Canadian population constituted the highest percentage (51%). No significant differences were observed among the three populations in the critical photoperiod (ca. L:D 15:9) for diapause induction at 22°C. A comparison of life table parameters, at 26°C, showed that the intrinsic rates of increase (rm), total progeny produced, preoviposition period, and net reproductive rates did not differ among the three populations.

Biological Control
Volume 3, Issue 1, March 1993, Pages 27-33
Result list | previous < 133 of 166 > next 
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