Spectracide Weed Stop for Lawns For St. Augustine & Centipede Lawns Concentrate, 32 fl oz
Spectracide Weed Stop for Lawns For St. Augustine & Centipede Lawns Concentrate, 32 fl oz
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Spectracide Weed Stop for Lawns For St. Augustine & Centipede Lawns Concentrate, 32 fl oz

212 ratings

Key item features

  • Effective Weed Elimination: Specifically formulated to control tough established weeds like dollar weed, sandspur, and Florida betony, while also preventing new weed growth from seeds.
  • Lawn-Safe Formula: Provides targeted weed control designed not to harm St. Augustine grass varieties and centipede lawns when used precisely as directed.
  • Atrazine Inclusion: Contains atrazine, an active ingredient for comprehensive weed management across all types of St. Augustine and centipede grasses.
  • Hose-End Application: Features a QuickFlip hose-end concentrate sprayer for easy attachment and activation, simplifying the application process by connecting directly to a hose.
  • Generous Area Treatment: A single 32 fl oz container covers a substantial area, capable of treating up to 3,720 square feet of lawn for weed control.
  • Temperature Restriction: Must be applied when daytime temperatures are below 90 degrees Fahrenheit; higher temperatures may cause potential harm to the lawn.
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Specs

Form, LiquidHerbicide type, Weed KillerOccasion, Weed ControlPlant category, GrassesProduct line, Weed StopPlant name, St. Augustine & Centipede Lawns

About this item

Product details

Spectracide® Weed Stop® For Lawns For St. Augustine & Centipede Lawns Concentrate with atrazine controls tough weeds as listed – and it won’t harm your lawn when used as directed. This hose-end concentrate formula kills established weeds, including dollar weed, sandspur and Florida betony, and prevents weeds from emerging in your lawn. The spray controls both emerged weeds and weeds from seeds. Apply to all varieties of St. Augustine grass and centipede grass when temperatures are below 90 degrees. Spectracide Weed Stop For Lawns For St. Augustine & Centipede Lawns Concentrate is easy to use. Simply connect your hose to the QuickFlip™ hose-end sprayer and flip the switch to activate. Spray your lawn until wet to control weeds. Do not apply when daytime temperatures are above 90 degrees because injury to your lawn can occur. Read the entire label before using.
  • Spectracide Weed Stop for Lawns for St. Augustine & Centipede Lawns Concentrate Ready-to-Spray, 32 Ounces
  • KILLS WEEDS, NOT THE LAWN: Won't harm lawns when used as directed, controls both emerged weeds and weeds from seeds.
  • WITH ATRAZINE: For lawn weed control in all St. Augustine grass varieties and centipede grass.
  • CONTROLS TOUGH WEEDS:  Kills established weeds, including dollar weed, sandspur and Florida betony. 
  • HOSE-END CONCENTRATE: Quick flip hose-end sprayer activates spray at the flip of a switch. 
  • COVERAGE: Treats up to 3,720 sq. feet. 
  • www.spectracide.com
info:
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Specifications

Form

Liquid

Herbicide type

Weed Killer

Occasion

Weed Control

Plant category

Grasses

Warranty

Warranty information

GUARANTEED RESULTS OR YOUR MONEY BACK If you are not satisfied with this product for any reason, send your written request for a refund to the address below, together with the original dated store receipt showing the price you paid. Please allow 6-8 weeks for processing. Spectrum Group, Division of United Industries Corporation P.O. Box 142642, St. Louis, MO 63114-0642

Customer ratings & reviews

4.2 out of 5 stars
stars
212 ratings102 reviews
How item rating is calculated

Reviews summary

Pros

  • : Connects to hose and turns on with minimal effort.
  • : Connects to hose for straightforward application.

Neutral

  • : It kills clover in a few to ~10 days, but timing varies.
  • : Effective on many types, but inconsistent on others.
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Showing 1-3 of 102 reviews

Sep 4, 2026
Reviewer name: David
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Centipede safe. . . Weeds dead

Safely used on my centipede grass in July 2026. Killed the weeds and not the centipede.

Helpful?1OT4KKCWLX1S16630895
Jun 1, 2026
Reviewer name: HappyCamper
5 out of 5 stars
5 out of 5 stars review

Great Product!

I was underwhelmed by this product for the first week. Then I read up on how the product works. It takes a couple of weeks to start seeing the results because the product works by interfering with photosynthesis,and then the weed dies off. It is working perfectly.

Review from Spectracide
Helpful?1OT4KKCWLX1S16630895
Mar 1, 2026
Reviewer name: Paul
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Takes about a week to start seeing the effect. Depending on how much weed that is in the lawn, a second spray will be needed. It's been three month since applying and the weeds are gone and in control.

Helpful?1OT4KKCWLX1S16630895
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