REPORT OF THE SOCIETY 



37 



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. 



