Welcome to the Weed Division website. We hope you can easily find the answer you are looking for here. If not please call 970-400-3770 to speak with someone from the Weed Division.
The Weld County Weed Division has three distinct tasks. These tasks include landowner compliance/education, mowing and spraying. For more information on these tasks click here.
Any plant that is growing where you do not want it to grow can be a weed. The important differentiation is between a weed and a noxious weed. A noxious weed is a legal term that is classified by several key characteristics. 1. It is a plant that is non-native to Colorado (and most likely the United States). 2. It is very invasive and spreads easily without human assistance. 3. It displaces native vegetation. And 4. The plant may be toxic to livestock, wildlife and humans (if consumed).
Prior to 1990’s Colorado had weed districts that usually had a mill-levy associated with them. Each district could select what weeds they were concerned with. In the 1990’s the law was changed to create County-wide programs if the voters chose to change. Most did. However a few Counties still operate under taxing districts. With this change the Colorado Department of Agriculture put all of the weeds of concern onto one big list that Counties could select from; kind of like al-a-carte. There wasn’t any real consistency around the state.
Then in 2004, the law was changed once again and the A, B and C lists were created. A list species are set for mandatory eradication all over the State of Colorado. The B list species are set for a minimum of control/suppression around the State and possibly eradication depending on the size of the infestation in each specific County. The C list species are out there for Counties and municipalities to address if they choose to. These species are wide spread throughout the State of Colorado.
Around 2012 a Watch List was also created. This list has on it species of concern that are being evaluated. The evaluation includes a literature review, corresponding with other states as to issues they have had with these species as well as looking for and evaluating their existence in Colorado. From this list these species will either fall off the list as not posing a problem or be moved to one of the regulatory lists, most likely the A list.
Most tall weeds on properties are kochia, ragweed, sunflowers, etc. Unfortunately, these plants are not deemed noxious weeds. The County Code only addresses plants that are designated as noxious weeds by the Colorado Department of Agriculture.
Therefore, the best option for seeking control of tall weeds is to contact the local fire authority and ask them to check into the fire hazard concern. If you would like more information, please call Tina Booton at 970-304-6496 ext. 3770.
It is the landowner’s responsibility to maintain the vegetation along their property for visibility.
The County does mow paved road surfaces within unincorporated Weld County. Two passes are made a year. The timing of mowing along the paved roads is not always perfect with individual needs.
Commercial Licensed Sprayers
Tree Removal Companies
Large Scale Grazing Companies
Adams County Weed Division
Boulder County Weed Division
Larimer County Weed Division
West Greeley Conservation District
CSU Cooperative Extension Fact Sheets
Colorado Department of Agriculture Noxious Weeds
Colorado Department of Agriculture Pesticides Section
Colorado Weed Management Association
Noxious Weed Word Search
Weed Biology Word Search
Absinth Wormwood coloring sheet
Black Henbane coloring sheet
Bull Thistle coloring sheet
Chinese Clematis coloring sheet
Common Mullein coloring page
Dalmatian Toadflax coloring sheet
Dames Rocket coloring page
Houndstongue coloring sheet
Leafy Spurge coloring sheet
Musk Thistle coloring sheet
Myrtle Spurge coloring sheet
Russian Knapweed coloring sheet
Scotch Thistle coloring sheet
Yellow Nutsedge coloring sheet
Platte Invasives Endeavor (PIE) Plan
South Platte Watershed Weed Management Area Agreement
South Platte River Weed Management Area Signature Form
Phone: (970) 400-3770
1111 H Street, Greeley
Phone: (970) 400-3750
Fax: (970) 304-6497
P.O. Box 758
Greeley, CO 80632
Weld County Offices: Weld County Colorado, 1150 O ST. Greeley, CO 80631
Mailing Address: Weld County Colorado, PO Box 758, Greeley, CO 80632
Phone:(970) 356-4000Email:email@example.comHours:8-5 M-F