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Weed Inventory and Management Plan
MOUNTAIN CROSS ENGINEERING. INC.
Civil and Environmental Consulting and Design
826 '/z Grand Avenue, Glenwood Springs, CO 81601
P: 970.945.5544 F: 970.945.5558 www.mountaincross-eng.com
Mahan Subdivision
September, 2008
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970-625-1002 S, 970-615-2800
Weed Inventory and Management Plan
Mahan Subdivision
The Mahan Subdivision is about 6850 feet in elevation. The vegetation in
the subdivision is mostly oak brush with a few aspens. The noxious weeds found
on the subdivision are contained in the open meadows, disturbed areas and
areas the brush has been cleared. These areas are primarily found on Lot 1.
There is potential for these weeds to spread into Lot 2 as the lot is developed.
Outdoor Services conducted a weed inventory at the Mahan Subdivision
on 8-21-2008. The noxious weeds found on the property are Musk Thistle,
Plumeless Thistle, Canada Thistle, Oxeye Daisy and Houndstongue.
Musk Thistle was found as a heavy patch about 150'x75' in size. The key
to managing Musk Thistle is to prevent sccd production. Musk Thistle seeds are
viable for up to 10 years, therefore these infestations need to be monitored and
treated as needed for several years to be eliminated.
Plumeless Thistle was found with a Tight infestation in the same area as
the Musk Thistle. Successful management is similar to Musk as Plumeless also
has a 10 year seed viability and reproduces by seed.
Canada Thistle was found along the water line easement and around the
cabin_ With 75% of a Canada Thistle plant underground it takes persistence to
eliminate a Canada Thistle patch. Canada Thistle spreads primarily by root
although the buried seeds may remain viable for 20 years.
Oxeye Daisy was found in a patch about 50'in diameter at the south end
of the musk thistle patch and also in the area around the cabin. Oxeye Daisy
spreads both by root and seeds. The seeds are only viable for two or three years.
Houndstongue was found along the roadsides and cleared oak brush
areas. Houndstongue spreads by seed. The seeds are only viable for two or
three years.
The key to successfully eliminating the weeds currently found in the
subdivision and preventing new infestations is treating the weeds with herbicide
and revegatating the infested and disturbed areas with native grasses and forts.
The weeds found in this subdivision should be treated with Milestone and
Dicamba in the fall of 2008 and the spring of 2009. The currently infested areas
as well as any newly disturbed areas should be inspected and treated if weeds
are found for 10 years after seed production is eliminated. This responsibility
should be written into the covenants for the homeowners association.
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Bill To
Mahan Properties
0648 County Road 126
Glenwood Springs CO 81601
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Date
Invoice t
8129!2008
2030
Property Address
Mahan Properties
0648 County Road 126
Glenwood Springs, CO 81601
Time
Terms
NIA
Due on rcceip
Weed Spraying Chemicals
Weed inventory and Management Plan $750
Weed Spraying Fall 2008 $750
Weed Spraying Spring 2009 $500
Thank vau for your business.
Applicators:
Barry & Jodi
Total
$2,000.0
Payments arc due at time ofservice. A service fec
2% per month will be accessed to any account tha
30 days past duc.
Keel off until dry.
Commercial Applicators are Licensed by the Colorado Department of Agriculture
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