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Psylla pyricola Foerster Suppresses Pear Tree Root Development1

Published online by Cambridge University Press:  31 May 2012

W. H. A. Wilde  and
D. L. McIntosh
W. H. A. Wilde
Affiliation:
Research Station, Canada Department of Agriculture, Summerland British Columbia
D. L. McIntosh
Affiliation:
Research Station, Canada Department of Agriculture, Summerland British Columbia
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Abstract

Foliage feeding by the pear psylla suppressed root development in seedlings of Pyrus communis, P. ussuriensis, and P. pyrifolia. Reduction in the size of the root system was greatest in seedlings with the heaviest infestations. Psyllid populations were established more readily on seedlings of P. communis than on the oriental seedlings of P. ussuriensis or P. pyrifolia.

Type
Articles
Information
The Canadian Entomologist , Volume 96 , Issue 8 , August 1964 , pp. 1083 - 1087
Copyright
Copyright © Entomological Society of Canada 1964

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References

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Lindner, R. C., Burts, E. C. and Benson, N. R.. 1962. A decline condition in pears induced by pear psylla. Plant Disease Reptr 46: 59–60.Google Scholar