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Density and efficacy of the flea beetle Aphthona Lacertosa (Rosenhauer), an introduced biocontrol agent for leafy spurge, in Alberta

Kalischuk, Andrea Ruth, University of Lethbridge. Faculty of Arts and ScienceLethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 20012001

Biocontrol has been critized because the target effects of biocontrol introductions have not been studied rigorously. The objectives of this thesis were 1)to assess quantitatively the efficacy of a classical biocontrol agent after its release and 2)to suggest factors that affect the density and …

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