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The Spined Stink Bug: Cause of Cottony Spot in Pear in British Columbia1

Published online by Cambridge University Press:  31 May 2012

Jack M. Wilks
Affiliation:
Plant Pathology Section, Canada Agriculture Research Station, Summerland, British Columbia

Abstract

Cottony spot of Anjou and Bartlett pear fruits in British Columbia is caused by the feeding injury of the spined stink bug, Euschistus variolarius (Beauv.). Symptoms are small white cottony-like pockets about ¼ inch in diameter and ⅛ inch deep in the flesh immediately beneath the skin. Anjous may show irregularly depressed areas where the bugs have been feeding, but no symptoms are apparent in Bartlett unless the fruit is peeled. Most of the injury appears to occur in August during the second peak of the stink bugs.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1964

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References

Borden, A. D., Madsen, H. F. and Retan, A. H.. 1952. A stink bug, Euschistus conspersus, destructive to deciduous fruits in California. J. econ. Ent. 45: 254257.CrossRefGoogle Scholar
Woodside, A. M. 1946. Some insects that cause cat-facing and dimpling of peaches in Virginia. Bull. Va. agric. Exp. Sta. 389, 15 pp.Google Scholar