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Common Vetch

Description

Common vetch is a trailing winter annual weed that forms large mats of vegetation. It is common to waste areas and roadsides. The leaves of common vetch are very narrow, alternately arranged and compound. Tendrils form on the ends of the leaves. Long stems arise from fibrous roots, and flowers are purple. Late in the season after the flowers drop, seed pods form.

Cultural Control

Winter annual broadleaf weeds germinate in the fall or winter and grow during any warm weather, which may occur in the winter, but otherwise remain somewhat dormant during the winter. They resume growth and produce seed in the spring and die as temperatures increase in late spring and early summer. They quickly invade thin turf areas especially where there is good soil moisture. Shade may also encourage growth. Many have a prostrate growth habit and are not affected by mowing. A dense, vigorous turf is the best way to reduce the encroachment of winter annual weeds. First, select adapted turfgrass cultivars for your area and then properly fertilize, mow, and water to encourage dense growth.

Chemical Control

Herbicide and Formulation
Amount of Formulation per 1,000 sq ft
Amount of Formulation per Acre
Pounds Active Ingredient per Acre

Preemergence and Postemergence Control

Herbicide and Formulation

mesotrione, MOA 27 (Tenacity) 4 SC

Amount of Formulation per 1,000 sq ft

0.092 to 0.183 fl oz

Amount of Formulation per Acre

4 to 8 fl oz

Pounds Active Ingredient per Acre

0.125 to 0.25

Precaution and Remarks

Use on residential turf, golf courses (not greens) and sod farms for pre- and postemergence weed control. Tolerant turfgrasses include St. Augustinegrass, centipedegrass, tall fescue, fine fescue, Kentucky bluegrass, and perennial ryegrass. Add a nonionic surfactant and repeat application after 2 to 3 weeks for improved postemergence control. Tank mix with Barricade 65 WG for extended preemergence grassy weed control. Can be applied at seeding to all tolerant grasses except fine fescue. After turf germination, wait 4 weeks or until turf has been mowed twice before making a postemergence application. Also controls henbit, chickweed, dandelion, white clover, Florida betony, Florida pusley, ground ivy, oxalis, wild violet, creeping bentgrass, and yellow nutsedge.

Preemergence and Postemergence Control

Herbicide and Formulation

sulfentrazone + prodiamine, MOA 14 + 3 (Echelon 4 SC) 4 SC

Amount of Formulation per 1,000 sq ft

0.184 to 0.826 fl oz

Amount of Formulation per Acre

0.5 to 2.25 pt

Pounds Active Ingredient per Acre

0.25 to 1.125

Precaution and Remarks

For use in residential and institutional lawns, athletic fields, sod farms, golf course fairways and roughs, roadsides, utility right-of-ways, railways, and industrial areas. Apply to turf following a second mowing if a good root system has been established. Apply up to 12 fluid ounces per acre to bentgrass at 0.5 inches or higher, fine fescue, and perennial ryegrass. Apply 18 to 24 fluid ounces per acre to perennial bluegrass, tall fescue, and all warm season grasses except St. Augustinegrass (do not apply) and bermudagrass (apply 18 to 36 fluid ounces per acre). For sod production, apply 6 months after establishment, and do not harvest within 3 months. Do not apply with adjuvants or surfactants. Echelon should not be applied to cool-season turf with N-containing fertilizers unless some short-term discoloration is tolerable.

Postemergence Control

Herbicide and Formulation

clopyralid, MOA 4 (Lontrel) 3 EC

Amount of Formulation per 1,000 sq ft

0.1 to 0.5 fl oz

Amount of Formulation per Acre

0.25 to 1.33 pt

Pounds Active Ingredient per Acre

0.09 to 0.5

Precaution and Remarks

Do not apply to home lawns. May be used on bentgrass, Kentucky bluegrass, creeping, red, chewings, sheep and tall fescue, perennial ryegrass, bermudagrass, bahiagrass, buffalograss, centipedegrass, zoysiagrass, and St. Augustinegrass. Do not apply to putting greens and tees. Should be applied in a minimum of 20 gallons of water per acre. Surfactants are not necessary. Do not apply to exposed roots of certain trees and shrubs (legumes such as acacia, locust, mimosa, redbud, or mesquite) or Tilia spp. Do not use treated clippings for mulching and compost during the growing season of application.

Presentations

Publications

Species Data

Growth Season/Life Cycle

winter annual weed

Growth Habit

upright; vining

autopsy 1
autopsy 1
autopsy 1
autopsy
autopsy
autopsy
autopsy2
autopsy2
autopsy2
common vetch
common vetch
common vetch
p1040119
p1040119
p1040119
p1050287
p1050287
p1050287
p1050783
p1050783
p1050783
Leaflet Number

four or more

back of leaf
back of leaf
back of leaf
leaf3
leaf3
leaf3
leaves 2
leaves 2
leaves 2
Leaf Margin

smooth

back of leaf
back of leaf
back of leaf
leaf3
leaf3
leaf3
p1040492
p1040492
p1040492
p1040493
p1040493
p1040493
Leaf Hairs

may or may not have leaf hairs

Leaf/Leaflet Shape

linear/oblong/oval/egg-shaped/elliptical; tendrils on ends of older leaves - aid in climbing

autopsy2
autopsy2
autopsy2
back of leaf
back of leaf
back of leaf
leaf3
leaf3
leaf3
leaves 2
leaves 2
leaves 2
p1040119
p1040119
p1040119
p1040492
p1040492
p1040492
p1040493
p1040493
p1040493
Leaf Width

1 - 2 inches

autopsy2
autopsy2
autopsy2
back of leaf
back of leaf
back of leaf
leaf3
leaf3
leaf3
leaves 2
leaves 2
leaves 2
Leaf Venation

pinnate

back of leaf
back of leaf
back of leaf
leaf3
leaf3
leaf3
leaves 2
leaves 2
leaves 2
Leaf Arrangement

alternate

autopsy
autopsy
autopsy
autopsy2
autopsy2
autopsy2
back of leaf
back of leaf
back of leaf
leaf3
leaf3
leaf3
leaves 2
leaves 2
leaves 2
Root Type

fibrous

autopsy
autopsy
autopsy
root
root
root
roots
roots
roots
Flower Color

blue/purple

autopsy2
autopsy2
autopsy2
common vetch
common vetch
common vetch
flower
flower
flower
flower2
flower2
flower2
flower3
flower3
flower3
p1050287
p1050287
p1050287
p1050424
p1050424
p1050424
p1050671
p1050671
p1050671