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THE EFFECT OF PHOTOPERIOD ON DIAPAUSE INDUCTION AND INHIBITION IN HIPPODAMIA TREDECIMPUNCTATA (COLEOPTERA: COCCINELLIDAE)1

Published online by Cambridge University Press:  31 May 2012

R. H. Storch  and
W. L. Vaundell
R. H. Storch
Affiliation:
Department of Entomology, University of Maine, Orono
W. L. Vaundell
Affiliation:
Department of Entomology, University of Maine, Orono
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Abstract

Diapause in Hippodamia tredecimpunctata (Linnaeus) can be inhibited by exposing adult females to photoperiod regimens of LD 16:8 or 14:10 hours. Exposing adult females to a photoperiod of LD 12:12 hours initiates diapause. The photoperiod to which the egg, larval, and pupal stages are exposed has no effect on the developmental rate and has little effect on adult diapause status.

Type
Articles
Information
The Canadian Entomologist , Volume 104 , Issue 2 , February 1972 , pp. 285 - 288
Copyright
Copyright © Entomological Society of Canada 1972

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References

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