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Goosegrass

Description

Goosegrass is a very troublesome grassy weed in athletic fields, golf greens, tees and fairways, and in other turfgrasses that are mowed short. It germinates when soil temperatures reach 60 to 65°F, and requires moisture and light for germination. Goosegrass has a prostrate growth habit, and is often white in the center with a wagon-wheel like appearance. Unlike crabgrass, it does not root at the nodes, but grows well in compacted soils. It competes very successfully with warm-season and cool-season turfgrasses during summer months and is most competitive in thin, open turfs and turfs subject to intense traffic or use.

Cultural Control

Goosegrass is most competitive in thin, open turfs and turfs subject to intense traffic or use. Close mowing and frequent watering enhance goosegrass competition. It is a very troublesome weed in athletic fields, golf greens, tees and fairways and other turfgrasses that are mowed short. Goosegrass germinates when soil temperatures reach 60°F, which is usually at least two weeks later than crabgrass. It competes very successfully with warm-season and cool-season turfgrasses during summer months. A severe goosegrass infestation may indicate the need for aerification to alleviate compaction.

Chemical Control

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

Preemergence Control

Herbicide and Formulation

benefin, MOA 3 (Balan 2.5 G) 2.5 G

Amount of Formulation per 1,000 sq ft

2.75 lb

Amount of Formulation per Acre

120 lb

Pounds Active Ingredient per Acre

3

Precaution and Remarks

Safe to apply to all established turfgrass except bentgrass. Do not apply in the spring to lawns seeded the previous fall or to golf course greens. Do not use on newly sprigged turfgrasses.

Preemergence Control

Herbicide and Formulation

benefin + trifluralin, MOA 3 + 3 (Team 2 G) 2 G (Team Pro 0.86%) 0.86 G

Amount of Formulation per 1,000 sq ft

3.5 lb 8 lb

Amount of Formulation per Acre

150 lb 349 lb

Pounds Active Ingredient per Acre

3

Precaution and Remarks

Use on lawns and golf course fairways of bahiagrass, bentgrass, bermudagrass, centipedegrass, fescue, perennial ryegrass, St. Augustinegrass, and zoysiagrass.

Preemergence Control

Herbicide and Formulation

bensulide, MOA 8 (Bensumec 4 LF or Betasan 4.8-E) 4 EC (Pre-San) 12.5 G (Pre-San) 7 G

Amount of Formulation per 1,000 sq ft

Amount of Formulation per Acre

varies because several concentrations available

Pounds Active Ingredient per Acre

10

Precaution and Remarks

May be applied to all established turfgrass and dichondra, residential lawns, and also golf course greens and tees. Limit 2 applications per year to greens and tees. Do not use on newly sprigged turfgrasses. Not effective for goosegrass control.

Preemergence Control

Herbicide and Formulation

bensulide + oxadiazon, MOA 8 + 14 (Goosegrass/Crabgrass Control) 6.56 G

Amount of Formulation per 1,000 sq ft

2.6 lb

Amount of Formulation per Acre

116 lb

Pounds Active Ingredient per Acre

6 + 1.5

Precaution and Remarks

Controls crabgrass and goosegrass. Use on established bermudagrass, zoysiagrass, tall fescue, bentgrass, perennial bluegrass, or perennial ryegrass fairways and tees. Use also on bermudagrass and bentgrass greens.

Preemergence Control

Herbicide and Formulation

dithiopyr, MOA 4 (Dimension 2 EW) 2 EW (Dithiopyr 2 L) 2 L (Dimension Ultra WSP, Dynamo 40 WSP or Dithiopyr 40 WSP) 40 WP

Amount of Formulation per 1,000 sq ft

0.75 fl oz 0.46 oz

Amount of Formulation per Acre

1 qt 20 oz

Pounds Active Ingredient per Acre

0.5

Precaution and Remarks

May be applied to most all cool-season and warm-season turfgrasses except colonial bentgrass. See label for injury precautions regarding certain varieties. Also controls pre-tillered crabgrass. Split applications recommended in southern and coastal regions of the state (0.25 pound a.i. at 8 week intervals). Timely irrigation or rainfall is critical for activation.

Preemergence Control

Herbicide and Formulation

indaziflam, MOA 21 (Specticle 20 WSP) 20 WSP

Amount of Formulation per 1,000 sq ft

0.057 to 0.115 oz

Amount of Formulation per Acre

2.5 to 5 oz

Pounds Active Ingredient per Acre

0.03125 to 0.0625

Precaution and Remarks

Use only on established turf (1 year after seeding) such as bermudagrass, zoysiagrass, centipedegrass, St. Augustinegrass, seashore paspalum, and bahiagrass. Labeled for commercial and residential lawns, golf courses (roughs, tees, fairways), sod farms, athletic fields, parks and cemeteries. Use a minimum of 2.5 ounces per acre for crabgrass, annual bluegrass and broadleaf weed control and a minimum of 3.75 ounces per acre for goosegrass, annual sedge and kyllinga species control. Apply up to 2.5 ounces per acre on centipedegrass and St. Augustinegrass due to tolerance concerns. For all other tolerant turfgrasses, do not exceed 5 ounces per acre in a single application or 7.1 ounces per acre within a calendar year. There is an 8 month overseeding restriction following a 2.5 ounces per acre application. Can sprig 2 months following application, or if sprigged first, wait 4 months before spraying. Can sod 4 months following application, or if sodded first wait 2 months after rooting before spraying.

Preemergence Control

Herbicide and Formulation

(Specticle Flo) 0.622 F

Amount of Formulation per 1,000 sq ft

0.69 to 0.23 fl oz

Amount of Formulation per Acre

3 to 10 fl oz

Pounds Active Ingredient per Acre

0.01458 to 0.0486

Precaution and Remarks

Use up to 6 fluid ounces per acre on common bermudagrass, centipedegrass and St. Augustinegrass and 10 fluid ounces per acre on hybrid bermudagrass, zoysiagrass and bahiagrass established 16 months in areas such as golf course roughs and fairways, residential and commercial turf, sod farms, athletic fields, parks and cemeteries. 10 fluid ounces per acre needed for annual sedge and kyllinga species control. Don’t exceed 18.5 fluid ounces per acre per year. Do not vertical mow 1 month before or after application. Irrigate within 2 days of treatment for maximum benefit. Check label for split or multiple application rates and timings. Delay overseeding 10 months if 4.5 to 6 fluid ounces used and 12 months if 6 to 9 fluid ounces used. For sod production, only apply to bermudagrass, zoysiagrass or bahiagrass. Apply if 80% ribbon coverage and before 4 months prior to harvest. Wait 6 month after treatment if sodding bare ground. Apply to actively growing sod established for 3 months.

Preemergence Control

Herbicide and Formulation

metolachlor, MOA 15 (Pennant Magnum ) 7.62 EC

Amount of Formulation per 1,000 sq ft

0.96 fl oz

Amount of Formulation per Acre

2.6 pt

Pounds Active Ingredient per Acre

2.48

Precaution and Remarks

Apply to established bermudagrass, centipedegrass, St. Augustinegrass, bahiagrass, and zoysiagrass. Can apply up to 4.2 pint per acre per year to same area used for commercial sod production.

Preemergence Control

Herbicide and Formulation

napropamide, MOA 15 (Devrinol) 50 DF (Devrinol) 2 G

Amount of Formulation per 1,000 sq ft

1.5 to 2.2 oz 2.3 to 3.4 lb

Amount of Formulation per Acre

4 to 6 lb 100 to 150 lb

Pounds Active Ingredient per Acre

2 to 3

Precaution and Remarks

Use in established bahiagrass, bermudagrass, centipedegrass, St. Augustinegrass, and tall fescue.

Preemergence Control

Herbicide and Formulation

oryzalin, MOA 3 (Oryzalin 4 Pro or Surflan A.S.) 4 AS

Amount of Formulation per 1,000 sq ft

1.5 fl oz

Amount of Formulation per Acre

2 qt

Pounds Active Ingredient per Acre

2

Precaution and Remarks

Use on established bahiagrass, centipedegrass, tall fescue, St. Augustinegrass, zoysiagrass, and bermudagrass except greens and tees. A total of 3 quart per acre may be used if application is split by applying 1.5 quart per acre followed by 1.5 quart per acre 8 to 10 weeks later. Follow label directions. Do not apply in the spring or summer to tall fescue reseeded the previous fall.

Preemergence Control

Herbicide and Formulation

(Harrier WDG) 85 WDG

Amount of Formulation per 1,000 sq ft

0.64 to 0.88 oz

Amount of Formulation per Acre

1.75 to 2.4 lb

Pounds Active Ingredient per Acre

1.4875 to 2.04

Precaution and Remarks

Observe same turf tolerances and tall fescue precautions as above. Successful preemergence activity should occur if activated by 0.5 inch of water within 21 days of application. Apply 2.4 pounds per acre as a single application or 1.75 pounds per acre in sequential applications spaced 12 weeks apart.

Preemergence Control

Herbicide and Formulation

oxadiazon, MOA 14 (Oxadiazon 2 G) 2 G (Ronstar G or Regal Ronstar A.C.) 2 G

Amount of Formulation per 1,000 sq ft

2.3 to 4.6 lb 2.3 to 3.4 lb

Amount of Formulation per Acre

100 to 200 lb 100 to 150 lb

Pounds Active Ingredient per Acre

2 to 4 2 to 3

Precaution and Remarks

Use in established perennial bluegrass, perennial ryegrass, bentgrass, bermudagrass, tall fescue, zoysiagrass, and St. Augustinegrass. Red fescue is not tolerant. Do not apply to dichondra, centipedegrass, putting greens or tees, or to newly seeded areas. Do not apply to bentgrass mowed at less than 3/8 in. Do not apply to wet turf. Rainfall or irrigation after application will improve weed control activity. May be applied when sprigging bermudagrass and zoysiagrass. Do not apply to home lawns.

Preemergence Control

Herbicide and Formulation

(Oxadiazon 50 WSB or Ronstar 50 WSB) 50 WP

Amount of Formulation per 1,000 sq ft

1.5 to 2.2 oz

Amount of Formulation per Acre

4 to 6 lb

Pounds Active Ingredient per Acre

2 to 3

Precaution and Remarks

Use in dormant, established bermudagrass, St. Augustinegrass, and zoysiagrass in fairways and parks. Should be applied at least 2 to 3 weeks before greenup of turf. May be applied when sprigging bermudagrass and zoysiagrass. Do not use on home lawns.

Preemergence Control

Herbicide and Formulation

(Ronstar Flo, Oxadiazon SC or Starfighter L) 3.17 SC

Amount of Formulation per 1,000 sq ft

1.85 to 2.8 fl oz

Amount of Formulation per Acre

2.52 to 3.81 qt

Pounds Active Ingredient per Acre

2 to 3

Precaution and Remarks

Use in dormant, established bermudagrass, St. Augustinegrass, and zoysiagrass in fairways and parks. May apply 2 lb a.i. per acre when sprigging bermudagrass. Make application at least 2 to 3 weeks before greenup of turf. Do not use on home lawns.

Preemergence Control

Herbicide and Formulation

oxadiazon + benefin, MOA 14 + 3 (Regalstar) 1.5 G

Amount of Formulation per 1,000 sq ft

4.5 lb

Amount of Formulation per Acre

200 lb

Pounds Active Ingredient per Acre

2 + 1

Precaution and Remarks

Use on turf and golf courses of bermudagrass, centipedegrass, St. Augustinegrass, zoysiagrass, bentgrass (fairways only), bluegrass, ryegrass, and tall fescue. Do not use on home lawns. Product contains 38% N. Apply to dry foliage.

Preemergence Control

Herbicide and Formulation

oxadiazon + prodiamine, MOA 14 + 3 (Regalstar II) 1.2 G

Amount of Formulation per 1,000 sq ft

4.5 lb

Amount of Formulation per Acre

200 lb

Pounds Active Ingredient per Acre

2 + 0.4

Precaution and Remarks

Use on turf, golf courses (excluding putting greens) of established bermudagrass, zoysiagrass, St. Augustinegrass, ryegrass, centipedegrass, bentgrass, bluegrass, and tall fescue. Product contains 38% N. Apply to dry foliage.

Preemergence Control

Herbicide and Formulation

pendimethalin, MOA 3 (Pendulum 2 G) (Signature 0.86 G) (Signature 0.75 G)

Amount of Formulation per 1,000 sq ft

1.72 to 3.44 lb 2.67 to 5.34 lb 3.1 to 6.15 lb

Amount of Formulation per Acre

75 to 150 lb 116 to 232 lb 135 to 268 lb

Pounds Active Ingredient per Acre

1,5 to 3 1 to 2 1 to 2

Precaution and Remarks

Use on established bahiagrass, bermudagrass, centipedegrass, fine fescue, Kentucky bluegrass, perennial ryegrass, St. Augustinegrass, tall fescue, and zoysiagrass. Do not use on winter-overseeded grasses.

Preemergence Control

Herbicide and Formulation

pendimethalin, MOA 3 (Pendulum AquaCap) 3.8 CS

Amount of Formulation per 1,000 sq ft

1.15 to 2.3 fl oz

Amount of Formulation per Acre

3.1 to 6.3 pt

Pounds Active Ingredient per Acre

1.5 to 3

Precaution and Remarks

Use on noncropland as well as established nonresidential and residential turf areas mowed at least 4 times consisting of bahiagrass, bermudagrass, buffalograss, centipedegrass, St. Augustinegrass, zoysiagrass, Kentucky bluegrass, perennial ryegrass, bentgrass, established Poa annua (0.5 inch height or taller), fine fescue, and tall fescue. Do not use on bentgrass or Poa annua greens and tees. If lower rate is applied initially, repeat in 6-8 weeks for extended control. Do not reseed or overseed into treated turfgrass for 3 months, or sprig turfgrass for 5 months following application. Do not exceed 4.2 pint per acre on residential and sod farm turfgrass.

Preemergence Control

Herbicide and Formulation

pendimethalin + dimethemamid, MOA 3 + 15 (Freehand) 1.75 G

Amount of Formulation per 1,000 sq ft

2.3 to 4.6 lb

Amount of Formulation per Acre

100 to 200

Pounds Active Ingredient per Acre

1.75 to 3.5

Precaution and Remarks

Use on residential, commercial, recreational, sod farm and golf course turf, excluding greens. Tolerant turf species include bermudagrass, centipedegrass, St. Augustinegrass, seashore paspalum and zoysiagrass. For extended control, make sequential applications within 5 to 8 weeks not to exceed 400 lb per acre. Irrigate within 24 hr of application for optimum control. Following application, wait 3 months to overseed, reseed or sprig. If sprigged first, wait 2 months for root establishment to treat. On new sod, mow at least twice before application. On new seedlings, mow at least 4 times before application. Wait 2 weeks after aerification or verticutting before applying.

Preemergence Control

Herbicide and Formulation

prodiamine, MOA 3 (Barricade 65 WG) 65 WG (Barricade 4 FL) 4 FL (Prodiamine 65 WDG, ProClipse 65 WDG or RegalKade 65 WDG) 65 WG

Amount of Formulation per 1,000 sq ft

0.28 to 0.4 oz 0.23 to 1.1 fl oz 0.185 to 0.83 oz

Amount of Formulation per Acre

0.75 to 1.5 lb 0.625 to 3 pt 0.5 to 2.3 lb

Pounds Active Ingredient per Acre

0.5 to 1 0.3125 to 1.5 0.325 to 1.5

Precaution and Remarks

May be used on established bahiagrass, bermudagrass, centipedegrass, St. Augustinegrass, zoysia, tall fescue, creeping red fescue, perennial bluegrass and ryegrass, and creeping bentgrass. Do not apply to greens. May apply when sprigging or plugging bermudagrass, up to 0.8 pound product per acre.

Preemergence Control

Herbicide and Formulation

(RegalKade) 0.5 G

Amount of Formulation per 1,000 sq ft

1.5 to 6.9 lb

Amount of Formulation per Acre

64 to 300 lb

Pounds Active Ingredient per Acre

0.32 to 1.5

Precaution and Remarks

See precautions for Barricade except may be used on established turf only. Do not apply more than 150 pounds per acre per application. Do not make more than two applications per calendar year. Wait at least 60 days after initial application before making a second application. Prodiamine is coated on a 32-3-12 dry fertilizer carrier.

Preemergence Control

Herbicide and Formulation

siduron, MOA 7 (Tupersan) 50 WP

Amount of Formulation per 1,000 sq ft

7.3 oz

Amount of Formulation per Acre

20 lb

Pounds Active Ingredient per Acre

10

Precaution and Remarks

Use only on bluegrass, fescue, perennial ryegrass, and certain bentgrasses (check label). Can be used at the rate of 8 lb of formulation when seeding bentgrass, bluegrass, fescue, and ryegrass. Can also be used in newly sprigged or established zoysia. Do not use on bermudagrass, carpetgrass, or centipedegrass.

Preemergence Control

Herbicide and Formulation

dimethenamid, MOA 15 (Tower) 6 L

Amount of Formulation per 1,000 sq ft

0.48 to 0.73 fl oz

Amount of Formulation per Acre

21 to 32 fl oz

Pounds Active Ingredient per Acre

1 to 1.5

Precaution and Remarks

Use on residential, commercial, recreational, sod farm and golf course turf, excluding greens. Apply 21 ounces to established bentgrass, bluegrass species, fescue species and perennial ryegrass maintained at 0.5 inch cut, but expect yellowing and stand reduction. Apply 32 ounces to bahiagrass, bermudagrass species, centipedegrass, St. Augustinegrass, seashore paspalum and zoysiagrass. For extended control, make sequential applications within 5 to 8 weeks at 32 fluid ounces per acre rate. Irrigate within 24 hours of application for optimum control. Following application, wait 6 weeks to overseed or reseed, wait 2 months to sprig, wait until 2 mowings for new sod, and wait until 4 mowings for newly seeded turf.

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

fenoxaprop, MOA 1 (Acclaim Extra) 0.57 EC

Amount of Formulation per 1,000 sq ft

0.3 to 0.9 fl oz

Amount of Formulation per Acre

0.8 to 2.4 pt

Pounds Active Ingredient per Acre

0.057 to 0.174

Precaution and Remarks

Use only on perennial ryegrass, fine fescue, tall fescue, Kentucky bluegrass, and zoysiagrass. Reduced vigor or discoloration can occur. Rate depends upon leaf number or tillers of grass weeds and turf tolerance. Check label. A second application may be applied after 14 days.

Postemergence Control

Herbicide and Formulation

metribuzin, MOA 5 (Sencor 75 Turf) 75 WDF

Amount of Formulation per 1,000 sq ft

0.12 to 0.24 oz

Amount of Formulation per Acre

0.33 to 0.67 lb

Pounds Active Ingredient per Acre

0.25 to 0.5

Precaution and Remarks

Recommended for application by commercial applicators only on established bermudagrass turf (such as parks, athletic fields, golf course fairways, cemeteries, and sod farms) that has a mowing height of 0.5 inch or greater. Apply when turf is vigorously growing and not under stress. Repeat if necessary in 7 to 10 days. Do not make more than two applications per season. Do not apply to greens, tees, or aprons.

Postemergence Control

Herbicide and Formulation

sethoxydim, MOA 1 (Segment, Sethoxydim SPC) 1 EC

Amount of Formulation per 1,000 sq ft

0.8 to 1.38 fl oz

Amount of Formulation per Acre

2.25 to 3.75 pt

Pounds Active Ingredient per Acre

0.28 to 0.47

Precaution and Remarks

Use in seedling and established centipedegrass and fine fescues. Apply 2.25 pint to grasses up to 6 inches and 3.75 pt to grasses up to 12 inches if turf is tolerant. Does not control yellow and purple nutsedge, annual bluegrass or broadleaf weeds. Apply no sooner than 3 weeks after spring greenup of centipedegrass. Apply before crabgrass becomes extensively tillered. Delay all treatments until newly planted centipedegrass has 3 inches of new stolon growth. Do not mow within 7 days before or after application. Two applications 3 weeks apart will suppress bahiagrass. Additives or adjuvants not required.

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

diclofop-methyl, MOA 1 (Illoxan) 3 EC

Amount of Formulation per 1,000 sq ft

0.75 to 1 fl oz

Amount of Formulation per Acre

32 to 43 fl oz

Pounds Active Ingredient per Acre

0.75 to 1

Precaution and Remarks

Apply in established bermudagrass. Rate depends on number of goosegrass leaves from one to four leaves. Check label for specific rates.

Postemergence Control

Herbicide and Formulation

foramsulfuron, MOA 2 (Revolver) 0.19 SC

Amount of Formulation per 1,000 sq ft

0.39 fl oz

Amount of Formulation per Acre

17 fl oz

Pounds Active Ingredient per Acre

0.025

Precaution and Remarks

For use on bermudagrass and zoysiagrass grown on home lawns, golf courses and sod farms. See precautions listed under annual bluegrass section. For goosegrass control, apply 17 fl ounces per acre on plants up to 2 tillers followed by 17 fluid ounces per acre 2 weeks later.

Postemergence Control

Herbicide and Formulation

sulfentrazone, MOA 14 (Dismiss) 4 SC

Amount of Formulation per 1,000 sq ft

0.275 fl oz

Amount of Formulation per Acre

0.75 pt

Pounds Active Ingredient per Acre

0.375

Precaution and Remarks

May be applied to home lawns. For use on creeping bentgrass, tall and fine fescue, perennial ryegrass, Kentucky bluegrass, and all warm-season turf species except St. Augustinegrass. See precautions listed under purple and yellow nutsedge section. For goosegrass control, apply 0.75 pint per acre on plants up to 2 tillers.

Postemergence Control

Herbicide and Formulation

MSMA, MOA 17 (various brands)

Amount of Formulation per 1,000 sq ft

Amount of Formulation per Acre

several concentrations

Pounds Active Ingredient per Acre

1.82 to 4.5

Precaution and Remarks

Bermudagrass, bluegrass and zoysiagrass are tolerant. Injury may result on bentgrass, fescue and St. Augustinegrass (commercial sod production only). Do not use on carpetgrass or centipedegrass. MSMA restrictions: For existing golf courses, spot treat (100 square feet per spot) not to exceed 25% of total acreage. For new courses, make 1 broadcast application per year. For sod farms, make 1 to 2 broadcast applications per year and maintain 25 feet buffer around permanent water bodies. For highway rights of way, make 2 broadcast applications and maintain 100 feet buffer around permanent water bodies.

Postemergence Control

Herbicide and Formulation

MSMA, MOA 17 (various brands) + metribuzin, MOA 5 (Sencor 75 Turf) 75 WDF

Amount of Formulation per 1,000 sq ft

Amount of Formulation per Acre

several concentrations + 0.17 to 0.33 lb

Pounds Active Ingredient per Acre

1.5 to 2 + 0.125 to 0.25

Precaution and Remarks

See remarks for MSMA and metribuzin. The combination improves goosegrass control. Should be applied to bermudagrass only.

Postemergence Control

Herbicide and Formulation

MSMA + 2,4-D + MCPP + dicamba, MOA 17 + 4 + 4 + 4 (Trimec Plus) 2.88 F

Amount of Formulation per 1,000 sq ft

3 to 5 fl oz

Amount of Formulation per Acre

1 to 1.67 gal

Pounds Active Ingredient per Acre

1.8 + 0.48 + 0.48 + 0.12

Precaution and Remarks

Use on bermudagrass, perennial bluegrass, fescues, perennial ryegrass, and zoysiagrass. A second application will enhance control of dallisgrass or goosegrass.

Postemergence Control

Herbicide and Formulation

MSMA + 2,4-D + clopyralid + dicamba, MOA 17 + 4 + 4 + 4 (Millennium Ultra Plus) 2.42 L

Amount of Formulation per 1,000 sq ft

3 to 5 fl oz

Amount of Formulation per Acre

1 to 1.67 gal

Pounds Active Ingredient per Acre

2.42 to 4.04

Precaution and Remarks

Do not use on residential turf. Apply to bermudagrass, zoysiagrass, tall fescue, perennial bluegrass, and perennial ryegrass. Apply to seeded grasses after third mowing. Wait 3 to 4 weeks after application to seed. Do not exceed 1 gallon per acre on cool-season grasses and 1.67 gallons per acre on warm-season grasses.

Postemergence Control

Herbicide and Formulation

asulam, MOA 18 (Asulox) 3.34 SL

Amount of Formulation per 1,000 sq ft

1.8 fl oz

Amount of Formulation per Acre

5 pt

Pounds Active Ingredient per Acre

2

Precaution and Remarks

Use only on St. Augustinegrass and Tifway 419 turf. On golf courses, use only on fairways and roughs.

Postemergence Control

Herbicide and Formulation

topramezone, MOA 27 (Pylex) 2.8 L

Amount of Formulation per 1,000 sq ft

0.023 to 0.034 fl oz

Amount of Formulation per Acre

1 to 1.5 fl oz

Pounds Active Ingredient per Acre

0.021875 to 0.0328125

Precaution and Remarks

Labeled for spot treatment use in residential and athletic field turf. Can be broadcast in nonresidential turf sites including sod farms, golf courses (excluding greens and collars), parks, roadsides, cemeteries, and commercial properties. Tolerant turf species include Kentucky bluegrass, tall and fine fescue, perennial ryegrass, and centipedegrass at seeding and then anytime beyond 28 days after seeding. Add crop oil concentrate or methylated seed oil for enhanced control at 0.5 to 1% by volume. Don’t apply greater than 2 fl ounces per acre per application or 4 fluid ounces per acre per year. Bleaching intensity of susceptible weeds reduced and broadleaf weed spectrum increased if tankmixed with Drive XLR8, Onetime or Turflon Ester Ultra. For suppression of above-listed weeds, add Turflon Ester Ultra at 1 pound ae per acre and make either 2 or 3 applications at 3 to 4 week intervals depending on Pylex rate. Creeping bentgrass is marginally tolerant to Pylex at 0.25 fluid ounces per acre. Test on a small area before large-scale use. Sequential applications may be required to achieve desired level of weed control.

Presentations

Publications

Species Data

Seedhead/Flower

raceme; 2-6 spikes at the top of stem

autopsy
autopsy
autopsy
autopsy2
autopsy2
autopsy2
hairyligules
hairyligules
hairyligules
p1110569 goosegrass
p1110569 goosegrass
p1110569 goosegrass
seadheads
seadheads
seadheads
seedhead
seedhead
seedhead
seedheads2
seedheads2
seedheads2
Vernation type

folded

Ligule Type

membranous; 0.02 - 0.04 inches (0.6 - 1 mm) long, collar-like, hairy on back, edges sometimes with short hairs

dscn1194 goosegrass
dscn1194 goosegrass
dscn1194 goosegrass
hairyligules
hairyligules
hairyligules
ligule
ligule
ligule
Growth Season/Life Cycle

summer annual weed

Auricle type

absent

Leaf blade tip shape

blunt; sparse long hairs near base above, smooth and sharply creased below, edges may have hairs

dscn1172 goosegrass
dscn1172 goosegrass
dscn1172 goosegrass
leaftip
leaftip
leaftip
Leaf blade width

0.2 - 0.4 inches (5 - 10 mm) wide

leafblade
leafblade
leafblade
leaftip
leaftip
leaftip
Stolon Presence

absent

Rhizome Presence

absent

Collar Type

continuous; crooked fine hairs on edges

collar
collar
collar
collar2
collar2
collar2
dscn1170 goosegrass
dscn1170 goosegrass
dscn1170 goosegrass
Sheath Margin

split with overlapping margins; sheath is hairy at top, edges may have hairs

collar2
collar2
collar2
sheath2
sheath2
sheath2
sheathmargin
sheathmargin
sheathmargin
Sheath Type

flattened

dscn1179 goosegrass
dscn1179 goosegrass
dscn1179 goosegrass
hairyligules
hairyligules
hairyligules