In 2006 Tri-County Weed Control Treated 1013
Points of Noxious Weed Infestations Totaling 168.05
Acres on Public Lands in the CWMA Boundary. Of
Those 1013 Points of Infestation 257 Had No Weeds
Present in 2006.
Common Name               Acres              Occurrences
Black Henbane              5.31                42
Bull Thistle                      6.69                86
Canada Thistle               3.31                15
Diffuse Knapweed         3.27                 10
Musk Thistle                  11.13               72
Russian Knapweed       3.95                 18
Salt Cedar                      0.1                   3
Scotch Thistle               5.25                  8
Spotted Knapweed       4.93                  69
Squarrose Knapweed   0.1                    1
Tall Whitetop                0.1                    4
Whitetop                      123.9                426

In 2006 Tri-County Inventoried Approximately 5500
Acres of Private Land in the Duck Creek Basin. The
Inventory Generated 1,276 Points of Noxious Weed
Infestations and Approximately 489.16 Acres of
Noxious Weeds.
Common Name               Acres               Occurrences
Bull Thistle                     60.6                  517
Canada Thistle              75.75                207
Musk Thistle                  113.21              251
Salt Cedar                      0.1                   1
Scotch Thistle               0.1                    1
Spotted Knapweed       13.61                13
Tall Whitetop                 0.1                   3
Water Hemlock             35.1                 79
Whitetop                       190.59             204

In 2006 Tri-County Weed Control Inventoried the
Public Lands in Butte Valley Area. The Inventory
Located 313 Points of Noxious Weed Infestations
Covering Approximately 136.2 Acres.
Common Name               Acres               Occurrences
Black Henbane             1.1                    4
Bull Thistle                     18.4                  127
Canada Thistle              0.2                    2
Musk Thistle                  34.5                 33
Scotch Thistle               0.1                    1
Water Hemlock             6.6                    11
Whitetop                       75.3                  135

In 2006 Tri-County Weed Control Treated 204.47
Acres of Noxious Weed Species Along NDOT
Right-of-Ways passing through the CWMA. The
Species Treated were primarily Spotted Knapweed,
Whitetop, Musk Thistle, and Russian Knapweed.

In 2006 Tri-County Weed Control Treated 17.9 Acres
of Whitetop Along the Right-of-Ways in the Cross
Timbers Area.