Title: Annual report of the Quebec Society for the Protection of Plants
Identifier: annualreportofqu1317soci (find matches)
Year: 1921-1935. (1920s)
Authors: Société de Québec pour la protection des plantes
Subjects: Plants, Protection of; Plants, Protection of; Plant diseases; Plant diseases
Publisher: Quebec : The Society
Contributing Library: New York Botanical Garden, LuEsther T. Mertz Library
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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REPORT OF THE SOCIETY 37
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Attempts to inoculate healthy rhubarb with the juice from diseased plants either by rubbing or by petiole injection have so far failed. It has not yet been possible to transfer aphids successfully. Nevertheless I am quite certain that these Rheum rhaponticum plants have mosaic and this brief account is given that others interested may be on the watch for similar developments. THE CRANBERRY ROOTWORM BEETLE (Rhabdopterus picipes Ohv.) By C. E. Fetch, Dominion Entomological Laboratory, Hemmingford, Que. Introduction.—This insect has been collected in the Provinces of Ontario and Quebec, at least, as early as 1806, but remained unrecorded as a past in Canada until 1924. My attention was directed to it on apple trees at Mr. J. Normandin's, Rougemont, Que., where it injured the foliage and fruit. Adult specimens were forwarded to Mr. Arthur Gibson, Dominion Entomologist, and he informed me that they had been determined as Rhabdopterus picipes Oliv.

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