Douglas County Government, Colorado

Contact Information

3030 North Industrial Way | P.O. Box 1390 | Castle Rock, CO 80104 | Phone: 303.660.7480 | Fax: 303.814.3319 |
Office Hours: 8:00 a.m. to 5:00 p.m. Monday through Friday.
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Public Works

Weed Management

noxweeds@douglas.co.us

Office Hours

8:00 a.m. - 5:00 p.m.

Operations Division

3030 North Industrial Way
P.O. Box 1390
Castle Rock, CO 80109
Phone: 303.660.7480
Fax: 303.814.3319

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A major component of the Undesirable Plant Management Plan is the requirement to provide Douglas County Property Owners with technical assistance in determining methods to control or eliminate their weed problems. We have worked very hard over the past 14 years to insure County owned properties are under treatment for weeds and are continuing that endeavor.  We have worked with other public entities to assist them in their weed control problems. At the same time, we offered technical assistance to private property owners to control noxious weeds on their land be it several hundred acres or an individual lot.

The Noxious Weed Management Plan will be updated in the Fall of 2010.

Prevention, eradication and control are three general weed management strategies.
The cheapest weed to control is one you don’t have yet!  Like a small fire, a small patch treated now will prevent a major problem tomorrow!  Be a good neighbor and control your noxious weeds!

What We Do

  • Develop and administer the Douglas County Noxious Weed Management Program including application of herbicides, mowing activities in County right-of-ways and County open space.
  • Provide weed management education to Douglas County citizens.
  • In conjunction with Tri-County Health Department, administer the Douglas County mosquito mitigation program through trapping for adult mosquitoes and larviciding immature mosquitoes in standing water bodies in Douglas County maintained properties and culverts.

Noxious Weeds in Douglas County

  • 10 most unWanted Weeds
  • Other Noxious Weeds

Cypress spurge (Euphorbia cyparissias)

Dalmatian Toadflax broad-leaved (Linaria dalmatica)

Diffuse Knapweed (Centaurea diffusa)

Hoary Cress (Cardaria draba)

Leafy Spurge (Euphorbia esula)

Musk Thistle (Carduus nutans)

Myrtle spurge (Euphorbia myrsinites)

Russian Knapweed (Acroptilon repens)

Salt Cedar (Tamarix chinensis, T.parviflora, and T. ramosissima)

Yellow Toadflax (Linaria vulgaris)

Bull Thistle (Cirsium Vulgare)

Canada Thistle (Cirsium arvense)

Common Mullein (Verbascum Thapsus)

Common Tansy (Tanacetum Vulgare)

Common Teasel (Dipsacus Fullomum)

Cutleaf Teasel (Dipsacus Laciniatus)

Downy Brome (Bromus Tectorum)

Field Bindweed (Convolvulus Arvensis)

Houndstongue (Cynoglossum Officinale)

Mediterranean Sage (Salvia aethiopis)

Orange Hawkweed (Hieracium Aurantiacum))

Perennial Pepperweed (Lepidium latifolium)

Plumeless Thistle (Carduus Acanthoides)

Poison Hemlock (Conium Maculatum)

Puncturevine (Tribulus Terrestris)

Purple Loosestrife (Lythrum Salicaria)

Redstem Filaree (Erodium Cicutarium)

Russian-Olive (Elaeagnus Angustifolia)

Scotch Thistle (Onopordum acanthium)

Spotted Knapweed (Centaurea maculosa)

Sulfar Cinquefoil (Potentilla Recta)

Yellow Starthistle (Centaurea Solstitialis)

 

To view a complete list of Noxious Weeds in Colorado visit the Colorado Department of Agriculture website Noxious Weed Information.


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