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  • Noxious Weed Identification List

    Cheatgrass


    (Bromus tectorum)

    Info sheet Adobe PDF Icon

     

    Colorado List C – Control recommended

    General

    • Family: Poaceae (Grass)
    • Annual to winter annual
    • Introduced from Europe

     

    Common names

    • Downy Brome

     

    Habitat

    • Found in rangelands, pastures, open areas, roadsides and disturbed areas

     

    PLANT

    Vegetation

    • Mature plants up to 2 feet tall
    • Leaves about 1/8 inch wide and up to 8 inches long
    • Covered with soft hairs; turns reddish late in season

     

    Roots

    • Fibrous to 12 inches deep

     

    Flower

    • Season: May to June
    • Nodding panicles to 8 inches long

     

    Seed

    • Germinates in fall through early spring

     

    Seedling

    • Bright green

     

    Reproduction

    • Seed

     

    CONTROL

    Biological

    • None

     

    Chemical

    Apply the following during fall:

    • Imazapic (Plateau) plus methylated seed oil (MSO)

     

    Apply one of the following during late winter, when all other plants are dormant (usually before March 15):

    • Glyphosate
    • Imazapic plus Glyphosate (Journey) 

     

    Use all chemicals according to the manufacturer's label. Listing the above methods or products does not imply a specific recommendation or endorsement.

    Cultural

    • Prevention – maintain health of site
    • Fertilization to promote grass cover
    • Revegetation of highly disturbed sites
    • Removal - bag and dispose of plants if seeds have started to develop

     

    Mechanical

    • Burning - Cheatgrass burns readily; follow-up herbicide treatment and revegetation is necessary.  Cheatgrass can cause increased fire risk; consult your local fire department for burning requirements and restrictions 
    • Grazing - Early season grazing may help; graze before boot stage, then again 3 to 4 weeks later; animals will not graze once seed heads develop 
    • Mowing - Not effective; plants will regrow and still set seed 

     



    Alicia Doran
    Weed & Pest Management Specialist
    303-271-5989
    adoran@jeffco.us

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    Last Updated: 8-7-2013