Biological Control Agent for Canada Thistle

["D.B.Sullivan" <Buffalob@mhtc.net>]

====================================
Research Category:  Crop Protection and Entomology   Project Number:  90-0661
Project Title:  Evaluation of an Insect, Ceutorhynchus litura, as a
               Biological Control Agent for Canada Thistle
Research Manager:  A.S. McClay
Location:  Alberta Environmental Centre       Vegreville, Alberta

Status:  In progress

Objectives:

•  - to assess the effect of feeding by C. litura on the growth,
•                seed production, overwinter survival and vegetative spread of
•                Canada thistle growing under field conditions in competition
•                with grasses,
•              - to document the spread of C. litura at the Busby release site.
•                (The distance over which the insect has spread is not known at
•                present),
•              - to test the ability of C. litura to transmit the Canada thistle
•                rust Puccinia punctiformis.

Contact:  Dr. Alex McClay
         Pest Management Branch
         Alberta Environmental Centre
         Bag 4000
         Vegreville, Alberta
         TOB 4LO

         Phone:  403-632-6761

         For further information contact:  Research Division, Alberta
         Agriculture, J.G. O'Donoghue Building, 7000 - 113 Street,
         Edmonton, Alberta, T6H 5T6.  Phone: (403) 427-1956

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