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A TECHNIQUE FOR REARING THE PREDACEOUS MITE BALAUSTIUM PUTMANI (ACARINA: ERYTHRAEIDAE), WITH NOTES ON ITS BIOLOGY AND LIFE HISTORY1

Published online by Cambridge University Press:  31 May 2012

B. L. Cadogan  and
J. E. Laing
B. L. Cadogan
Affiliation:
Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1
J. E. Laing
Affiliation:
Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1
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Abstract

The predaceous mite Balaustium putmani Smiley was studied in the laboratory and in apple orchards in southern Ontario. A rearing technique was devised which facilitated the study of the life history and behaviour of individual mites.

Temperature and moisture influenced the development and hatching of eggs. In the presence of water, development proceeded more rapidly at the higher temperature of the 10°–25°C range tested. In the absence of water no development occurred. Larval B. putmani are free-living predators and although some were observed feeding periodically on pollen grains, they could not survive solely on this diet. All three motile stages are predators of a wide range of small, soft-bodied arthropods, but feed mainly on eriophyids and phytophagous tetranychid mites. The rate of consumption of the eggs and motile stages of the European red mite was determined for each motile stage at 20° and 25°C. Insemination is by externally deposited spermatophores and in the adult females, no facultative parthenogenesis was evident.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 12 , December 1977 , pp. 1535 - 1544
Copyright
Copyright © Entomological Society of Canada 1977

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