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REPRODUCTIVE CAPACITY OF TWO STRAINS OF CRYPTOLESTES TURCICUS (COLEOPTERA: CUCUJIDAE)1

Published online by Cambridge University Press:  31 May 2012

P. S. Barker  and
James A. Johnston
P. S. Barker
Affiliation:
Research Station, Canada Department of Agriculture, Winnipeg, Manitoba
James A. Johnston
Affiliation:
Research Station, Canada Department of Agriculture, Winnipeg, Manitoba
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Extract

Cryptolestes turcicus (Grouvelle), an insect pest of flour mills and warehouses, is distributed in Canada from Alberta to Quebec (Sinha 1965). Barker (1967) showed a difference in susceptibility to methyl bromide between two strains of C. turcicus; one of these was from the Pest Infestation Laboratory, Slough, England, and the other was from a local flour mill. A fortuitous observation suggested that there might be a difference between the reproductive capacities of these two strains. A randomized block design experiment was designed to test this hypothesis. Reproduction was observed in three sets of beetles differing in population density; each set was replicated four times.

Type
Articles
Information
The Canadian Entomologist , Volume 100 , Issue 2 , February 1968 , pp. 198 - 199
Copyright
Copyright © Entomological Society of Canada 1968

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References

Barker, P. S. 1967. Susceptibility of eggs and young of Cryptolestes ferrugineus (Stephens) and Cryptolestes turcicus (Grouvelle) (Coleoptera, Cucujidae) to methyl bromide. J. econ. Ent. 60(5): 1434–1436.CrossRefGoogle Scholar
Lefkovitch, L. P. 1962. Food quality and density effects in pre-adult Cryptolestes turcicus (Grouvelle) (Coleoptera: Cucujidae). Proc. zool. Soc. Lond. 138(1): 37–47.CrossRefGoogle Scholar
Sinha, R. N. 1965. Insects associated with stored products in Canada. Can. Insect Pest Rev., Suppl. 2.Google Scholar
Smith, L. B. 1966. Effect of crowding on oviposition, development and mortality of Cryptolestes ferrugineus (Stephens) (Coleoptera, Cucujidae). J. Stored Prod. Res. 2: 91–104.CrossRefGoogle Scholar