Top 9 Weed Killer for St Augustine Grass – Weed Killers

As an Amazon Associate I earn from qualifying purchases.

1. Southern Ag

#ad

1 Gallon, Southern Ag Atrazine St. Augustine Grass Weed Killer

#ad
Southern Ag #ad - Provides suppression of crabgrass. Controls emerged weeds and weeds from seed. Kills many broadleaf weeds. Also used in centipede grass.
BrandSouthern Ag #ad
ManufacturerSouthern Ag #ad
Height11.9 Inches
Length4.2 Inches
Width7.4 Inches
Part Numbera2511
Model00614

2. Southern Ag

#ad

Southern Ag 006130 Atrazine St. Augustine Weed Killer 32oz Specialty Herbicide, Light Tan

#ad
Southern Ag #ad - One quart treats 3, 720 sq ft. Controls weeds in St. Package weight: 1. 021 kilograms. Package dimensions: 5. 842 l x 19. 177 h x 12. 954 w centimeters. Augustine and Centipede Grasses.
BrandSouthern Ag #ad
ManufacturerSouthern Ag #ad
Height8 Inches
Length6 Inches
Width3 Inches
Part Number00613
Model006130

3. Ortho

#ad

Dandelion & Clover Killer, Dollarweed & More, Weed Control for Lawns, Use on Southern Grasses, 32 oz., Also Kills Chickweed, Kills to the Root, Ortho WeedClear Lawn Weed Killer Ready to Spray3

#ad
Ortho #ad - For use on grass, including bahiagrass, bentgrass, zoysiagrass, centipedegrass, and St. Get results in hours. Ft. May not be available in all states. Kills weeds to the roots, but won't harm the lawn grass when used as directed. Apply easily by connecting a garden hose to the attached sprayer, treats up to 5, 000 sq. Kill weeds in your lawn, dandelions, including dollarweed, clover, and chickweed with Ortho WeedClear Lawn Weed Killer. Augustinegrass except Floratam.
BrandOrtho #ad
ManufacturerOrtho #ad
Height11.25 Inches
Length2.33 Inches
Width5.5 Inches
Part Number449105
Model449105

4. Yard Mastery

#ad

Water Dispersible Granule, Yard Mastery Prodiamine 65 WDG Professional Pre Emergent Weed Killer Herbicide for Crabgrass, 5oz Bottle, POA Annua and Other Problem Weeds

#ad
Yard Mastery #ad - For all grass types - ok on kentucky bluegrass, St Augustine, Bermuda, Turf Type Tall Fescue, Perennial Rye, Zoysia, Centipede and Bahia Grasses. Product must be watered in.

5oz bottle - professionally formulated for DIYers who want small quantities of pre emergent. See full product description below. Spring and fall applications - mix. 183oz or 5. 2 grams of prodiamine 65 wdg in 1 gallon of water and this spray mix can cover 1, 000 sq ft. Stop crabgrass - use this in spring and fall to stop crabgrass and poa annua as a pre emergent but this also stops other listed weeds. Enough for 1 entire season on a 10, 000 square foot yard. Water dispersible granule wdg - Mix in water and sprayed out as a liquid via pump or battery sprayer.
BrandYard Mastery #ad
ManufacturerSunniland #ad

5. BIOADVANCED

#ad

BIOADVANCED 704840B 3 in 1 Weed and Feed for Southern 5M Lawn Fertilizer with Herbicide, 12.5-Pounds, Granules

#ad
BIOADVANCED #ad - Won't harm lawns when used as directed. Weed killer: kills weeds including dandelion, dollar weed, and clover. Southern lawns: specially formulated for southern lawns. 6-month protection: prevents broad lead, grassy weeds, and crabgrass for up to 6 months. For use on southern turfs bermuda Grass, St Augustine Grass, Centipede Grass and Zoysia Grass. Lawn fertilizer: feeds, greens, and strengthens your lawn. 50% slow release formula.
BrandBIOADVANCED #ad
ManufacturerSBM Life Science #ad
Height3 Inches
Length15 Inches
Weight12.7 Pounds
Width12 Inches
Part Number704840F
Model704840B

6. Fertilome

#ad

DavesPestDefense Ferti-Lome St. Augustine Weed and Feed 15-0-4 16lbs

#ad
Fertilome #ad - Target pests: crabgrass, Spotted Spurge, Sedge, Paspalum and others.16 lbs. Not for sale to: ak, HI, CA, MN. Epa registration: 7401-336.
BrandFertilome #ad
Part Number2009

7. Scotts

#ad

Scotts Turf Builder Southern Triple Action, Weed Killer, Covers up to 8,000 sq. ft., Fire Ant Killer & Preventer, Kills Clover, Oxalis, Dollarweed & More, Lawn Fertilizer, 27 lb.

#ad
Scotts #ad - Scotts turf builder Southern Triple Action kills, prevents and feeds. Augustinegrass including Floratam, Centipedegrass, Zoysiagrass and Carpetgrass. For use on st. Fertilizes to build thick green lawns. Prevents and kills fire ants, fleas, chinchbugs, mole crickets, armyworms, sod webworms and ticks for up to 6 months. Kills weeds, clover, including dollarweed, oxalis, plantain, chickweed and henbit.
BrandScotts #ad
ManufacturerScotts #ad
Height12 Inches
Length18 Inches
Weight26.6 Pounds
Width4 Inches
Part Number26008A
Model26008A

8. Ortho

#ad

Ortho Weed B Gon Weed Killer for St. Augustinegrass Ready-To-Spray, 32 oz

#ad
Ortho #ad - Augustinegrass including Floratam. Won’t harm the lawn – Guaranteed When used as directed. Rain-proof in 1 hour. Kills 250+ listed weeds See label for listed weeds. Treats up to 2, 500 sq. Ft. For use on st.
BrandOrtho #ad
ManufacturerScotts - Mixing Warehouse Items #ad
Height5.5 Inches
Length2.33 Inches
Width11.25 Inches
Part Number0193610
ModelN/A

9. Scotts

#ad

5,000 sq. ft., Scotts Turf Builder Bonus S Southern Weed & Feed2

#ad
Scotts #ad - Builds strong, deep grass roots to strengthen against heat and drought. Only for use on st. Augustinegrass including Floratam, centipede, zoysia and carpetgrass lawns. Kills dollarweed, clover and other listed lawn weeds. Feeds grass to crowd out future weeds. Not for use on Bermudagrass. Available in tx, nc, fl except Panhandle region, ga, al, la, ms, and SC.
BrandScotts #ad
ManufacturerScotts #ad
Height13 Inches
Length17 Inches
Width4 Inches
Part Number3313B
Model3313B