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Weeds
Annual bluegrass
Barnyardgrass
Bentgrass, creeping
Bermudagrass
Bittercress (Shotweed, Hairy bittercress)
Bittersweet nightshade (European bittersweet)
Black medic
Blackberry (Himalayan, Evergreen, Pacific)
Blue mustard (Purple mustard, Tenella mustard)
Brackenfern, western
Buffalobur
Bull thistle
Buttercup, creeping
Canada thistle
Catchweed bedstraw (Cleavers)
Catsear, common (False dandelion)
Chickweed, common and mouseear
Clover
Comfrey
Crabgrass
Creeping Jenny
Dandelion
Dock (Curly, Broadleaf)
Dodder
Downy brome (Cheatgrass, Downy chess)
Dwarf mistletoes
English daisy (Lawn daisy)
English ivy
Field bindweed (Wild morningglory)
Field pennycress (Fanweed)
Flixweed
Foxtail (Green, Yellow, Bristly)
Garden loosestrife
Giant hogweed
Goldenrods
Groundsel, common
Hawkweeds
Hedge bindweed
Henbit
Herb Robert (Robert geranium, stinky Bob)
Horsetails (Scouringrush)
Horseweed (Marestail)
Knapweeds
Knotweeds (Bohemian, Giant, Japanese, Himalayan)
Kochia
Lambsquarters, common
Lesser celandine
Liverworts
Mallow, common (Cheeseweed, Buttonweed)
Nightshades
Oxalis (Creeping woodsorrel)
Parrotfeather and Eurasian watermilfoil
Pineappleweed
Plantain (Broadleaf, Buckhorn)
Poison hemlock
Poison ivy and Poison oak
Pokeweed
Prickly lettuce (China lettuce)
Prostrate knotweed
Puncturevine (Tackweed, Goathead)
Purple deadnettle (Red deadnettle)
Purple loosestrife (Purple lythrum)
Purslane, common
Quackgrass
Red sorrel (Sheep sorrel)
Redroot pigweed (Rough pigweed)
Redstem filaree (Stork's bill, Crane's bill)
Reed canarygrass
Russian thistle (Tumbleweed)
Ryegrass, annual (Italian ryegrass)
Salsify (Goatsbeard)
Scotch broom
Shepherd's-purse
Smartweeds
Sowthistle, annual and perennial
Speedwells
Spurges (Prostrate spurges)
St. Johnswort, common (Goatweed, Klamathweed)
Stinging nettle
Tansy ragwort
Tumblemustard (Jim Hill mustard)
Velvetgrass (Common velvetgrass)
Velvetleaf
Water primrose
Waterhemlock, western
Yellow nutsedge
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Caption: Creeping bentgrass
Photo by: B.M. Johnson
Weeds : Bentgrass, creeping :
Agrostis stolonifera
(revision date: 9/3/2015)
Family: Poaceae (Graminae)
Cycle: Perennial
Plant Type: Grass
Use Integrated Pest Management (IPM) for successful weed management.
Biology
Creeping bentgrass is a low-growing, perennial grass. Unmowed plants can reach 8 to 20 inches in height. The leafy stolons lie along the ground, rooting in the soil. In lawns, these flat patches can be unsightly. Leaf blades are narrow and flat, with pointed tips. The finely branched panicle (seed head) is typically closed, but opens when the plant is blooming. SPECIAL INFORMATION: Bentgrasses in lawns can produce large amounts of thatch, particularly if they are overfertilized and not mowed short. Thatch buildup can interfere with water availability to grass roots and can contribute to other lawn problems.
Habitat
Bentgrasses are often problem weeds in lawns both east and west of the Cascades. Also, lawns consisting of mostly bentgrass are common west of the Cascades.
Management Options
Non-Chemical Management
However, this is very time consuming and frustrating.
Digging and carefully removing the roots will reduce the number of plants, but will not get rid of it.
Select non-chemical management options as your first choice!
Chemical Management
IMPORTANT:
Visit Home and Garden Fact Sheets for more information on using pesticides
Apply according to label directions. Spot treatments with certain post-emergent herbicides will control weedy grasses, but will also kill the turf. Glyphosate products should be applied as spot treatments only! NOTE: Some ingredients listed here are only available in combination. Read the label carefully on combination products to make sure the product is suitable for your specific situation.
Landscape areas
glyphosate
dichlobenil
fluazifop
Turf areas
glyphosate
Bare ground areas
glyphosate
Images
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Caption: Creeping bentgrass
Photo by: B.M. Johnson
Caption: Creeping bentgrass stolon
Photo by: B.M. Johnson
Caption: Creeping bentgrass
Photo by: T. W. Miller