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AN ENERGY BUDGET FOR MAMESTRA CONFIGURATA (LEPIDOPTERA: NOCTUIDAE)1

Published online by Cambridge University Press:  31 May 2012

C.G. Bailey
Affiliation:
Research Station, Agriculture Canada, Winnipeg, Manitoba
N.B. Singh
Affiliation:
Research Station, Agriculture Canada, Winnipeg, Manitoba

Abstract

An energy budget was evaluated for the bertha army worm, Mamestra configurata (Walker), over its life cycle. Cumulative values for the budget at the end of larval development were: ingestion, 2124 cal; respiration, 372 cal; production, 485 cal; and egestion, 1266 cal. The sixth instar larva accounted for 80.1, 83.2, 81.3, and 78.8% of the total energy in ingestion, respiration, production, and egestion, respectively, during its development. Assimilation efficiency varied from 35.5 to 44.4% with a mean of 40.6%, gross production efficiency varied from 16.6 to 23.8% with a mean of 21.3%, and net production efficiency varied from 37.5 to 61.3% with a mean of 52.7%.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1977

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