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TABLE OF CONTENTS <br />page <br />1.0 Introduction .....................................................................................................................1 <br />2.0 Site Conditions ........................................................................ ........................................1 <br />3.0 Russian Knapweed (Acroptilon or Centaurea repens) ............. ........................................2 <br />3.1 Mechanical Control .............................................................. ........................................4 <br />3.2 Cultural control .................................................................... ........................................4 <br />3.3 Chemical Control ................................................................. ........................................5 <br />3.4 Biological Control ........................................................................................................6 <br />3.5 Prevention ...................................................................................................................7 <br />4.0 Canada Thistle (Cirsium arvense) ............................................ .......................................7 <br />4.1 Mechanical Control ............................................................... .......................................9 <br />4.2 Cultural Control .................................................................... .......................................9 <br />4.3 Chemical Control .................................................................. .....................................11 <br />4.4 Biological Control ................................................................. .....................................11 <br />5.0 Recommended Control Plan .................................................... .....................................12 <br />6.0 References ............................................................................... .....................................15 <br />LIST OF TABLES <br />Table 1. Herbicide options for controlling Russian knapweed ....................................................6 <br />Table 2. Herbicide options for controlling Canada thistle ..........................................................10 <br />LIST OF FIGURES <br />Figure 1. Several views of Russian knapweed (Centaurea repens) ...........................................3 <br />Figure 2. Several views of Canada thistle (Cirsium arvense) .....................................................8