INSPEC30125

• Permit No: M1977227
• IBM Index Class Name: Inspection
• Doc Date: 1/27/2006
• Doc Name: Weed Control Plan
• From: Hecla
• To: DMG
• Inspection Date: 10/18/2005
• Media Type: D
• Archive: No

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