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EFFECTS OF TEMPERATURE ON DEVELOPMENTAL RATE OF THE IMMATURE STAGES OF CRIOCERIS ASPARAGI (COLEOPTERA: CHRYSOMELIDAE)

Published online by Cambridge University Press:  31 May 2012

R.G. Taylor  and
D. G. Harcourt
R.G. Taylor
Affiliation:
Ottawa Research Station, Canada Agriculture, Ottawa K1A 0C6
D. G. Harcourt
Affiliation:
Ottawa Research Station, Canada Agriculture, Ottawa K1A 0C6
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Abstract

When the immature stages of Crioceris asparagi (L.) were reared at 10 constant temperatures, differential rates of survival and development were observed. The duration of all stages decreased with increase in temperature up to 32°C. The eggs tolerated a wider range of temperatures (8°–34°C) than larvae and pupae (10°–34°C). Developmental rates plotted against temperature did not deviate significantly from fitted curves of the form 1/y = K/1 + ea−bx. During three generations, accumulated degree-days above a base of 10° during development of C. asparagi in the field did not differ significantly from stage thermal requirements as calculated.

Type
Articles
Information
The Canadian Entomologist , Volume 110 , Issue 1 , 01 January 1978 , pp. 57 - 62
Copyright
Copyright © Entomological Society of Canada 1978

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