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Hairy Vetch

Description

Hairy vetch is a trailing winter annual, biennial, or summer annual weed that forms large mats of vegetation. The leaves of hairy vetch are oblong, with 5-10 pairs of leaves per leaflet. Tendrils form on the ends of the leaves. Purple flowers form in early to mid summer.

Cultural Control

Hairy vetch is a winter annual, biennial, or summer annual weed that forms large mats of vegetation. Maintain a dense, actively growing turf through proper mowing, fertilizing, and watering practices. Mow at the proper height for your selected adapted turfgrass. Coring and traffic control reduce compaction and encourage desirable turfgrass competition.

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.

Presentations

Publications

Species Data

Growth Season/Life Cycle

summer annual or winter annual or biennial weed

Growth Habit

vining; vine-like, forms a mat; hairy stems

autopsy2
autopsy2
autopsy2
hairyvetch dsc 1411
hairyvetch dsc 1411
hairyvetch dsc 1411
Leaflet Number

5 - 10 pairs per leaf

Leaf Margin

smooth

hairyvetch dsc 1424
hairyvetch dsc 1424
hairyvetch dsc 1424
Leaf Hairs

upper/lower surface

Leaf/Leaflet Shape

linear/oblong

hairyvetch dsc 1424
hairyvetch dsc 1424
hairyvetch dsc 1424
seedlingroots
seedlingroots
seedlingroots
tendril
tendril
tendril
Leaf Width

1/2 - 1 inch

Leaf Venation

pinnate

Leaf Arrangement

alternate

hairyvetch dsc 1424
hairyvetch dsc 1424
hairyvetch dsc 1424
Root Type

taproot

seedlingroots
seedlingroots
seedlingroots
Flower Color

blue/purple

hairyvetch dsc 1397
hairyvetch dsc 1397
hairyvetch dsc 1397
hairyvetch dsc 1398
hairyvetch dsc 1398
hairyvetch dsc 1398
hairyvetch dsc 1411
hairyvetch dsc 1411
hairyvetch dsc 1411
hairyvetch dsc 1427
hairyvetch dsc 1427
hairyvetch dsc 1427
p1060834 hairyvetch
p1060834 hairyvetch
p1060834 hairyvetch
p1060839 hairyvetch
p1060839 hairyvetch
p1060839 hairyvetch
p1060840 hairyvetch
p1060840 hairyvetch
p1060840 hairyvetch