Best Post Emergent Crabgrass Killers In September 2026

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Looking for the Best Post Emergent Crabgrass Killers? Hey, we have got something for you here!.

To help you in your search, we have completed this list of the Best Post Emergent Crabgrass Killers.

Top Rated Best Post Emergent Crabgrass Killers Of 2026

Rank	Product Name	Score
1	Southern Ag Amine 24-D Weed Killer, White Bottle Buy Now	9.7 Buy Now
2	Scotts Turf Builder Triple Action - Weed Killer & Preventer, Lawn Fertilizer, Prevents Buy Now	9.5 Buy Now
3	The Andersons Pro Turf Barricade Granular Pre-Emergent Weed Control up to 5,800 sq Buy Now	9.1 Buy Now
4	BioAdvanced 704140 All-In-One Lawn Weed and Crabgrass Killer Garden Herbicide, 40-Ounce Buy Now	8.8 Buy Now
5	Ortho Weed B Gon Plus Crabgrass Control Concentrate2, 32 oz Buy Now	8.6 Buy Now
6	Ortho Weed B Gon Weed Killer for Lawns Concentrate2, 1 gal Buy Now	8.3 Buy Now
7	Southern Ag Surfactant for Herbicides Non-Ionic, 16oz, 1 Pint Buy Now	8.1 Buy Now
8	Tenacity Turf Herbicide - 8 ounces Buy Now	7.8 Buy Now
9	Roundup for Lawns Crabgrass Destroyer1 - Tough Weed Killer, Kills Crabgrass, Apply This Buy Now	7.5 Buy Now
10	Bioadvanced 704040B Bayer Advanced 100534368 Weed Control For Lawns, White, 29 oz Buy Now	7.2 Buy Now

1. Southern Ag Amine 24-D Weed Killer, White Bottle

• For use in pastures & rangeland, lawns, golf courses, cemeteries, parks,& similar ornamental turf.
• Selective broadleaf weed control

2. Scotts Turf Builder Triple Action - Weed Killer & Preventer, Lawn Fertilizer, Prevents

• Kills the weeds you see and the ones you don't, including dandelions, chickweed, clover and most other common broadleaf weeds as listed
• Prevents crabgrass for 4 months and feeds to build thick green lawns
• Triple action kills, prevents and feeds
• Also prevents barnyardgrass, fall panicum, foxtail, annual bluegrass, broadleaf weeds, corn speedwell, prostrate spurge, knotweed, purslane, chickweed, henbit and oxalis
• For use on bermudagrass, bahiagrass, centipedegrass, kentucky bluegrass, perennial ryegrass, tall fescue and fine fescue, and zoyiagrass

3. The Andersons Pro Turf Barricade Granular Pre-Emergent Weed Control up to 5,800 sq

• Barricade is designed to prevent weeds, and will not aid in eliminating existing weeds.
• Please refer to product label for complete application rates and timings. the product must also receive rainfall or irrigation in order for the herbicide prevention zone to become active.
• Barricade is most effective when applied in early spring, prior to soil temperatures reaching 55 degrees at a four-inch depth. in warm-season turf, barricade can also be applied in the fall for the prevention of poa annua (annual bluegrass).
• Dg pro formulation allows for more particles per square inch of chemical - leads to better control of weeds

4. BioAdvanced 704140 All-In-One Lawn Weed and Crabgrass Killer Garden Herbicide, 40-Ounce

• Rainproof in 1 hour
• This product won't harm you lawn when used as directed
• Use in tank sprayers, dial-n-spray and hose-end sprayers
• The fastest, easiest way to treat the entire lawn
• Kills over 200 of the most common broad leaf weeds like dandelions and clovers

5. Ortho Weed B Gon Plus Crabgrass Control Concentrate2, 32 oz

• Wont harm the lawn guaranteed (when used as directed)
• Kills weeds to the roots
• Kills crabgrass, dandelions and other common lawn weeds
• Starts working immediately
• Kills 200+ weeds

6. Ortho Weed B Gon Weed Killer for Lawns Concentrate2, 1 gal

• Wont harm the lawn - (when used as directed)
• Results in hours
• Not sold in tx
• Kills weeds to the root
• Kills dandelions, clover and other broadleaf weeds
• Kills 250+ listed weeds (see label for listed weeds)

7. Southern Ag Surfactant for Herbicides Non-Ionic, 16oz, 1 Pint

• Increases your herbicides effectiveness
• Non-ionic surfactant
• 16. oz.

8. Tenacity Turf Herbicide - 8 ounces

• Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in turfgrasses.
• Date printed on bottle is manufacture date, not expiration. shelf life: 5-8 years from date of manufacture when properly stored. keep out of direct sunlight and extreme temperatures
• When applied as a pre-emergent, weeds absorb tenacity during emergence from the soil.
• Target pests: barnyardgrass, carpetweed, chickweed, clover, crabgrass (large & smooth), dandelion, foxtail, goosegrass, henbit, yellow nutsedge, purslane, thistle, wild carrot and others
• Active ingredient: mesotrione 40%

9. Roundup for Lawns Crabgrass Destroyer1 - Tough Weed Killer, Kills Crabgrass, Apply This

• Apply any time before seeding, including day of seeding
• Designed for use on northern lawns: kentucky bluegrass, fine fescue, perennial ryegrass and tall fescue
• Roundup for lawns crabgrass destroyer1 is tough on weeds but won't harm your lawn (when used as directed)
• Kills the toughest crabgrass and grassy weeds without harming lawns (when used as directed)
• Weeds will turn white 4-7 days after application. white means it's working!

10. Bioadvanced 704040B Bayer Advanced 100534368 Weed Control For Lawns, White, 29 oz

• Post-emergent kills existing listed broad leaf weeds such as dandelion, clover and chickweed
• Rainproof in 1 hour
• Kills existing lawn weeds and prevents listed weeds from emerging for up to 6 months
• Pre-emergent prevents listed broad leaf weeds for up to 6 months
• Apply anytime spring through fall when temperatures are between 50 and 90 degrees