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STUDIES ON PEAR PSYLLA IN NOVA SCOTIA1

Published online by Cambridge University Press:  31 May 2012

Aly H. Rasmy  and
A. W. MacPhee
Aly H. Rasmy
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia
A. W. MacPhee
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia
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Abstract

Pear psylla, Psylla pyricola Foerster, had three generations in 1968 in Nova Scotia. Laboratory studies indicated that overwintering females require mating in the spring to produce fertile eggs. The adults started activity by the end of March, Psylla eggs and nymphs were preyed on by eight predacious species in the laboratory. These and the larvae of another six predacious species were associated with psylla in the field. A few psylla nymphs were parasitized by Trechnites insidiosus (Crawford). Psylla adults fly or are carried with the prevailing winds and a significant percentage occur above the tops of the trees.

Type
Articles
Information
The Canadian Entomologist , Volume 102 , Issue 5 , May 1970 , pp. 586 - 591
Copyright
Copyright © Entomological Society of Canada 1970

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References

Brittain, W. H. 1917. Sucking insects and mites injurious to apple and pear. Ann. Rep. Sectry. Agric. N.S. for 1916, III. pp. 69–102.Google Scholar
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