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THE REARING AND BIOLOGY OF GLISCHROCHILUS QUADRISIGNATUS (COLEOPTERA: NITIDULIDAE) IN THE LABORATORY

Published online by Cambridge University Press:  31 May 2012

W. H. Foott  and
P. R. Timmins
W. H. Foott
Affiliation:
Research Station, Agriculture Canada, Harrow, Ontario N0R 1G0
P. R. Timmins
Affiliation:
Research Station, Agriculture Canada, Harrow, Ontario N0R 1G0
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Abstract

A study on techniques for rearing Glischrochilus quadrisignatus (Say) in the laboratory showed that provision of adequate moisture and control of fungal diseases were essential. Most field-collected adult females oviposited regardless of when the collections were made, but there were large variations in the preoviposition periods. Hibernating beetles collected in the spring had a much shorter preoviposition period than beetles collected in the autumn and early winter. The high viability of eggs laid by overwintering females kept separate from males indicated that the beetles mated in the fall. Three consecutive generations occurred when beetles were reared in crocks supplied with corn and tomatoes in a greenhouse. At 21°C, the incubation period for eggs averaged 4.1 days, the larval period 21–22 days, and the pupation period 11.8 days. Newly developed adults remained in the soil for an average of 11.2 days before emerging.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 12 , December 1979 , pp. 1337 - 1344
Copyright
Copyright © Entomological Society of Canada 1979

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References

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