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Tall Fescue

Description

Tall fescue is the most widely grown cool-season species in North Carolina. For a cool-season species, tall fescue is tolerant to heat and drought, disease resistant, and persists with minimum care. It has a tendency to clump due to its bunch-type growth habit and may need to be re-seeded each year in areas that exhibit thin growth patterns due to excessive summer stresses. Tall fescue is easily confused with Kentucky bluegrass, annual ryegrass, and perennial ryegrass. However, Kentucky bluegrass has a boat-shaped leaf tip and distinctive light-colored lines on both sides of the midrib. Tall fescue has rolled vernation in the leaf bud and perennial ryegrass has folded vernation. Also, tall fescue has rough leaf blade margins whereas annual and perennial ryegrass have smooth ones. Tall fescue and perennial ryegrass both have non-clasping auricles, whereas annual ryegrass has clasping auricles. The backside of the tall fescue leaf blade is less glossy than that of annual ryegrass.

Cultural Control

Most turfgrasses are difficult to control within another turfgrass. Therefore, turf managers should select clean seed or vegetative sources for establishment, use an adapted turfgrass species and cultivar for their location, and use proper mowing and fertilization techniques to maintain a dense, actively growing, desired turf. Digging or removal with hand or mechanical equipment, for example a sod cutter, is one way to control undesired perennial turfgrasses. You may spot treat an infested area with an appropriate non-selective herbicide, realizing it will also kill the desired turfgrass.

Chemical Control

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

Postemergence Control

Herbicide and Formulation

flazasulfuron, MOA 2 (Katana) 25 DG

Amount of Formulation per 1,000 sq ft

0.011 to 0.069 oz

Amount of Formulation per Acre

0.5 to 3 oz

Pounds Active Ingredient per Acre

0.0078 to 0.0469

Precaution and Remarks

For use on well established bermudagrass, zoysiagrass, centipedegrass and seashore paspalum grown on nonresidential turf including golf courses, industrial parks, tank-sod- and seed farms, cemeteries, athletic field and commercial lawns. Apply a maximum of 1.5 ounces per acre on fully green centipedegrass and seashore paspalum. 3 ounces per acre needed for annual bluegrass control and best if applied in spring. 0.5 to 1.5 ounces per acre will control perennial and Italian ryegrass. For clumpy ryegrass, use 1.5 to 3 ounces per acre. 1.5 ounces per acre needed for tall fescue control. 2.25 to 3 ounces per acre needed for poa trivialis control. Include a nonionic surfactant at 0.25% by volume.

Postemergence Control

Herbicide and Formulation

foramsulfuron, MOA 2 (Revolver) 0.19 SC

Amount of Formulation per 1,000 sq ft

0.2 to 0.6 fl oz

Amount of Formulation per Acre

8.8 to 26.2 fl oz

Pounds Active Ingredient per Acre

0.013 to 0.039

Precaution and Remarks

For use on bermudagrass and zoysiagrass grown on home lawns, golf courses and sod farms. Do not use on warm season turfgrass collars surrounding bentgrass greens. May be applied up to 1 week prior to overseeding. Do not apply within 2 weeks of bermudagrass sprigging. Apply in 25 to 60 gal water per acre. Rainfast after 2 hours. Surfactant not required.

Postemergence Control

Herbicide and Formulation

rimsulfuron, MOA 2 (TranXit GTA) 25 DF (Rimsulfuron 25 DF) 25 DF

Amount of Formulation per 1,000 sq ft

0.011 to 0.092 oz

Amount of Formulation per Acre

0.5 to 4 oz

Pounds Active Ingredient per Acre

0.0078 to 0.0625

Precaution and Remarks

May be applied to bermudagrass, zoysiagrass and centipedegrass on professionally managed sports facilities at professional and collegiate levels, golf courses, sod farms, roadsides, industrial and commercial lawns. For annual bluegrass control, apply November through December and again February through March if needed at 2 ounces per acre. May be applied 10 to 14 days prior to overseeding. For overseeded removal, apply 2 ounces per acre 3 to 4 weeks before desired removal date, and repeat 3 weeks later if needed. For weed control along roadsides, apply 4 ounces per acre if single application only. A nonionic surfactant at 0.25% by volume or an oil adjuvant such as crop oil concentrate and modified seed oil at 1% by volume are required. Do not apply to cool-season turfgrasses, residential lawns or newly sprigged/sodded bermudagrass.

Postemergence Control

Herbicide and Formulation

metsulfuron + rimsulfuron, MOA 2 + 2 (Negate 37 WG) 37 WG

Amount of Formulation per 1,000 sq ft

0.0344352 oz

Amount of Formulation per Acre

1.5 oz

Pounds Active Ingredient per Acre

0.0346875

Precaution and Remarks

Use on well established bermudagrass and zoysiagrass grown on nonresidential turf including golf courses, sod farms, industrial and commercial lawns, and professionally managed college and professional sports fields. Overseeding can occur 2 months after application. Include a nonionic surfactant at 0.25% by volume.

Postemergence Control

Herbicide and Formulation

sulfosulfuron, MOA 2 (Certainty) 75 DG

Amount of Formulation per 1,000 sq ft

0.017 to 0.046 oz

Amount of Formulation per Acre

0.75 to 2 oz

Pounds Active Ingredient per Acre

0.035 to 0.09375

Precaution and Remarks

May be applied to certain ornamental native grasses and also bermudagrass species, zoysiagrass, centipedegrass, St. Augustinegrass, and kikuyugrass grown on sod farms, golf courses (excluding greens), commercial and residential turf that is highly managed, and other noncrop areas. Use 1.5 to 2 ounces per acre for fall annual bluegrass control 7 to 10 days before overseeding. Use 0.75 to 1.25 ounces per acre for fall or winter control in nonoverseeded bermudagrass, and reapply if needed but not before 21 days after initial application. For tall fescue control, two applications may be required at 4- to 10-wk intervals. Perennial ryegrass control not as complete as with Revolver, TranXit GTA, or Monument 75 WG. Use a nonionic surfactant at 0.25% by volume. Do not exceed 2.66 ounces per acre per year.

Postemergence Control

Herbicide and Formulation

trifloxysulfuron, MOA 2 (Monument 75 WG) 75 WG

Amount of Formulation per 1,000 sq ft

0.0023 to 0.0129 oz

Amount of Formulation per Acre

0.1 to 0.56 oz

Pounds Active Ingredient per Acre

0.0047 to 0.0263

Precaution and Remarks

May be applied to residential bermudagrass and zoysiagrass and also on golf courses, sod farms, and other nonresidential turf areas. A nonionic surfactant at 0.25 to 0.5% by volume is recommended. Temporary discoloration may occur if used with MSO or COC. May be applied 3 weeks prior to overseeding. Use rates of 0.1 to 0.3 ounces per acre to remove overseeded perennial ryegrass and Poa trivialis to aid bermudagrass spring transition. Labeled turf species can be seeded or sprigged into treated areas 4 weeks after application.

Postemergence Control or Suppression of Summer Weeds Such as Crabgrass Species

Herbicide and Formulation

thiencarbazone + foramsulfuron + halosulfuron, MOA 14 + 2 + 2 (Tribute Total) 60.5 WG

Amount of Formulation per 1,000 sq ft

0.0735 oz

Amount of Formulation per Acre

3.2 oz

Pounds Active Ingredient per Acre

0.121

Precaution and Remarks

Apply to well-established residential and commercial bermudagrass and zoysiagrass (Emerald, Meyer, Zeon) lawns, golf courses (excluding greens), athletic fields, sod farms, roadsides, parks, cemeteries and recreational areas. Do not exceed 3.2 ounces per acre per application or 6.4 ounces per acre yearly. Use 0.25 to 0.5% by volume nonionic surfactant or 0.5 to 1% by volume methylated seed oil. After application, wait 12 weeks to overseed ryegrass or bermudagrass. Wait 1 month after bermudagrass seedling emergence and 2 weeks after sprigging or sodding bermudagrass before treating. Temporary stunting and yellowing may last up to 2 weeks but turf will recover. Crabgrass and goosegrass are controlled up to 2 tiller stage.

Postemergence Control

Herbicide and Formulation

chlorsulfuron, MOA 2 (Corsair) 75 WDG

Amount of Formulation per 1,000 sq ft

0.02 to 0.122 oz

Amount of Formulation per Acre

1 to 5.33 oz

Pounds Active Ingredient per Acre

0.05 to 0.25

Precaution and Remarks

May be applied to all established turfgrass species except tall fescue, buffalograss, ryegrass, and dichondra. Some discoloration or delayed greenup may occur on St. Augustinegrass, centipedegrass, zoysiagrass, or bahiagrass if applied while turf is under stress. See label for a complete list of weeds controlled. The addition of 0.25% nonionic surfactant will enhance control.

Presentations

Publications

Species Data

Seedhead/Flower

terminal panicle

seedhead2
seedhead2
seedhead2
Vernation type

leaves rolled in the bud

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dscn0904
dscn0904
dscn0907
dscn0907
dscn0907
Ligule Type

membranous; collar-like, 0.02 inches (0.5 mm) or less long, very jagged

dscn0917
dscn0917
dscn0917
Growth Season/Life Cycle

cool season turf or perennial weed

Auricle type

rudimentary; non-clasping, small, short, hairs on edges

auricles2
auricles2
auricles2
dscn0917
dscn0917
dscn0917
dscn0930
dscn0930
dscn0930
Leaf blade tip shape

sharp-pointed; deeply ridged above, glossy below, prominent midrib below, edges rough

leafblade
leafblade
leafblade
Stolon Presence

absent

Rhizome Presence

occasional and short

Collar Type

divided; may be hairy on edges

collar
collar
collar
Sheath Margin

open

sheathmargin
sheathmargin
sheathmargin
Sheath Type

round; sheath is smooth

sheath3
sheath3
sheath3