Post emergent crabgrass killer is a strong and effective herbicide that is designed to quickly and effectively kill off crabgrass and other weeds. It is formulated with active ingredients that work to both kill the existing weeds and prevent new ones from growing. This product is specifically formulated to target crabgrass, so it won’t harm your lawn or other desirable plants in the area. It is easy to apply and can be used on both warm- and cool-season grasses. This product is designed to provide quick and long-lasting results, so you can enjoy a beautiful and weed-free lawn.
Top 10 Must-Haves & Best Post Emergent Crabgrass Killer, Reviews In 2023
1#. Bonide Products 60490 917453 Crabgrass Weed Killer
Features
Eliminates many types of weeds
Designed for home lawn use
5,000 square foot coverage
Dual action product prevents and kills crabgrass and listed broadleaf weeds
2#. Spectracide Weed Stop For Lawns Plus Crabgrass Killer, Ready-to-Use, 1 gallon
Features
KILLS 470+ WEED TYPES AS LISTED: This product kills broadleaf and grassy weeds, including dandelion, chickweed and clover as well as crabgrass and yellow nutsedge — see product label for complete list of weed types
VISIBLE RESULTS IN 5 HOURS: The product kills by contact and kills weed roots, producing visible results in 5 hours
KILLS LISTED WEEDS, NOT THE LAWN: Spectracide Weed Stop For Lawns Plus Crabgrass Killer3 kills weeds including crabgrass — not the lawn, when used as directed
WHEN TO USE: For best results, apply between 45°F-90°F
3#. BioAdvanced All-In-One Lawn Weed and Crabgrass Killer I, Concentrate, 40 oz
Features
ALL-in-ONE FORMULA: BioAdvanced’s All-in-One formula kills listed lawn weeds and crabgrass without harming the lawn
WEED KILLER: Kills over 200 listed broadleaf weeds like dandelion and clover PLUS crabgrass
SMARTTRACK MARKER: SmartTrack non-staining red marker shows treated weeds and fades with sunlight
RAINPROOF PROTECTION: Rainproof in 1 hour
4#. Roundup for Lawns Crabgrass Destroyer1 – Tough Weed Killer, Kills Crabgrass, Apply This Product to Kentucky Bluegrass, Fine Fescue, Perennial Ryegrass and Tall Fescue, 1 gal.
Features
Kills the toughest crabgrass and grassy weeds without harming lawns (when used as directed)
Designed for use on Northern lawns: Kentucky bluegrass, fine fescue, perennial ryegrass and tall fescue
Weeds will turn white 4-7 days after application. White means it’s working!
Apply any time before seeding, including day of seeding
RoundUp for lawns crabgrass destroyer1 is tough on weeds but won’t harm your lawn (when used as directed)
5#. BioAdvanced 5 In 1 Weed and Feed, Granules, 24 lb
Features
KILLS TOUGH WEEDS: Apply to actively growing turf to target hard to kill weeds like dandelions, clovers and black medic; plus, our revolutionary formula kills over 200 types of weeds
PREVENTS NEW WEEDS: Creates an extended 6-month control barrier that prevents new weeds from emerging
KILLS LARGE CRABGRASS: Contains four proven weed killers to control crabgrass, killing to the root. Crabgrass starts to turn purple in 3 days – that’s the sign it’s working
PREVENTS NEW CRABGRASS: Prevents crabgrass from reemerging for up to 6 months by forming a barrier at the top layer of the soil. And it won’t harm your lawn when used as directed
GREENS UP TO 3 MONTHS: Fertilizer formula feeds your lawn for quick greening, long-lasting feeding and stronger turf
COVERAGE AREA: Treats up to 10,000 square feet; RESTRICTIONS: Not for sale in NY, HI, & FL
6#. Spectracide Weed Stop For Lawns Plus Crabgrass Killer Concentrate, Kills Crabgrass On Lawn, 32 fl Ounce (RTS QuickFlip Spray)
Features
KILLS WEEDS, NOT THE LAWN: Controls listed weeds – including crabgrass – not the lawn (when used as directed)
KILLS CRABGRASS: Apply the first time you see crabgrass in your lawn
KILLS 470 PLUS TYPES OF WEEDS: Controls all types of listed broadleaf and grassy weeds, including crabgrass, dandelion, chickweed, clover and yellow nutsedge (see product label for complete list)
RAINPROOF: Rainfall or watering 3 hours after application will not wash away effectiveness
QUICKFLIP HOSE-END SPRAYER: Attaches easily to your garden hose and activates at the flip of a switch
7#. BASF Drive XLR8 Crabgrass Herbicide (1/2 Gallon, 64 OZ.)
Features
Sold on Amazon
NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included.
COVERAGE: Malfunctions covered after the manufacturer’s warranty.
EASY CLAIMS PROCESS: File a claim anytime online at www.Asurion.com/Amazon or by phone. Most claims approved within minutes. We will send you an Amazon.com Gift Card for the purchase price of your covered product. In some cases, we will replace or repair it.
TERMS & DETAILS: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase (if you do not see this email, please check your spam folder). Contact us if you cannot locate your plan confirmation and Terms & Conditions via email at [email protected].
8#. Liquid Harvest Mesotrione Bundle – 8 Ounces – Mesotrione Concentrate (Compare to Tenacity) – Pre and Post-Emergent Weed Killer for Lawn and Turf Grasses with 8oz Surfactant
Features
Liquid Harvest Mesotrione is a very useful herbicide as it prevents crabgrass seed germination and kills broadleaf weeds (dandelion and clover among others) on contact, while allowing certain cool season turfgrass to grow in a weed-free environment.
Liquid Harvest Mesotrione has a 40% active ingredient that inhibits photosynthesis in susceptible plant species. It is distributed throughout the plant after being absorbed by the plants through roots, shoots and leaves.
Liquid Harvest Mesotrione targets 46 broadleaf species of weed and grass. It can combat Barnyard grass, Carpetweed, Chickweed, Clover, Crabgrass (large & smooth), Dandelion, Foxtail, Goosegrass, Henbit, Yellow Nutsedge, Purslane, Thistle, Wild Carrot, and others.
For use in Kentucky Bluegrass, Centipede grass, Buffalo grass, Tall Fescue, Perennial Ryegrass, Fine Fescue, St. Augustine Grass (grown for sod only). DO NOT apply this product on Bentgrass, Poa annua, kikuyugrass, zoysiagrass, seashore paspalum, or bermudagrass. Mesotrione can only be used on bermudagrass that is still dormant when trying to remove weeds or target grasses from it. If the bermuda is only semi dormant you will see whitening and damage to the bermuda.
Liquid Harvest Meso: 4 – 8 oz. per 30 gallons of water per acre, use a Surfactant to Increase Effectiveness and be sure to read label for full instructions
Mesotrione prevents photosynthesis in plants. It will absorb and start working immediately, however, it can take up to 2-3 weeks before full death occurs on your weeds
The use of Liquid Harvest Surfactant helps stick the mesotrione spray mixtures to the desired areas
Bundle includes one 8 ounce Mesotrione and one 8 ounce Surfactant
Not for sale in CA and WA
9#. Tenacity Turf Herbicide – 8 ounces (Packaging may vary)
Features
Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in turfgrasses.
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%
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
10#. Primesource Quinclorac 1.5L Select Liquid Crabgrass Killer (64 ounces)
Features
KEY FEATURE: Selective, post-emergent herbicide that can be safely applied to many types of turf to control a variety of broadleaf and grassy weeds
USE SITES: Residential Turfgrass & Non-Residential Turfgrass
EFFECTIVE AGAINST: Crabgrass (large & smooth), Foxtail (giant, green & yellow), Kikuyugrass, Signalgrass (broadleaf), Torpedograss, Bindweed (field), Clover (hop, red & white), Daisy (english), Dandelion, Dollarweed, Geranium (Carolina), Morningglory spp., Speedwell (common, slender & thymeleaf)
ACTIVE INGREDIENT: Quinclorac 18.92%
