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Influence of Humidity on Longevity, Fecundity, and Rate of Increase of the Grain-infesting Mite Tyrophagus castellanii (Hirst) (Acarina: Acaridae) Reared on Mould Cultures1

Published online by Cambridge University Press:  31 May 2012

I. Rivard
Affiliation:
Entomology Laboratory, Belleville, Ontario

Extract

Results of an experiment reported previously (Rivard, 1958a) showed the influence of various humidities on mortality and rate of development of the immature stages of Tyrophagus castellanii (Hirst)reared on mould cultures at a constant temperature. Results of an experiment on the influence of humidity on the longevity and fecundity of the adult mites are reported in the present paper. Information gathered from both studies is used to calculate the innate capacity of the species for increase at different humidities.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1959

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References

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