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OCCURRENCE OF THE ELM LEAF BEETLE, GALERUCELLA XANTHOMELAENA (SCHR.), AT ST. CATHARINES, ONTARIO

Published online by Cambridge University Press:  31 May 2012

R. W. Sheppard
R. W. Sheppard
Affiliation:
Plant Protection Division, Niagara Falls, Ontario
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Extract

In July 11, 1945, in the city of St. Catharines, Ontario, while looking for some elm trees reported by Dutch elm disease scouts as being severely leaf-eaten, I found two white elms (Ulmus americana L.) carrying large numbers of coleopterous larvae which were at once taken to be referable to the elm leaf beetle, Galerucella xanthomelaena (Schr.)

Type
Articles
Information
The Canadian Entomologist , Volume 78 , Issue 1 , January 1946 , pp. 22
Copyright
Copyright © Entomological Society of Canada 1946

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