Best Post Emergent Crabgrass Herbicide for Lawn and Turf
A strong post-emergent crabgrass herbicide should target emerged crabgrass, suit your turf and offer application details that match your needs; BASF Drive XLR8 is a leading fit for shoppers seeking a quinclorac concentrate. This roundup compares six products: three Drive or Drive XLR8 listings, two mesotrione concentrates, and Agrisel QuinKill Max. The listings differ in active ingredient, stated residual control, product size, and included items, so the best match depends on more than the product name.
Drive XLR8 lists a 30-day residual and rainfastness in less than an hour, while another Drive listing states 30–45 days. Mesotrione options add pre-emergent activity, but their supplied details also describe water activation or a longer time to full weed death.
Check the label for turf suitability and directions before use.
BASF Drive XLR8 is the leading choice here because its listing specifically identifies post-emergent crabgrass control, quinclorac as the active ingredient, a 30-day residual, and rainfastness in less than an hour. It comes as a 64-ounce concentrate, making it a clear fit for buyers looking for a dedicated lawn-and-turf product. For an alternative Drive listing that claims 30–45 days of residual control, consider the USA Supply version; confirm all application and turf directions on the product label.
Our Top Picks
Best OverallIts 64-ounce quinclorac concentrate is explicitly for post-emergent crabgrass control and lists a 30-day residual plus rainfastness in less than an hour.
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Longest ResidualThis 64-ounce quinclorac listing targets mature crabgrass and states 30–45 days of residual control, with rainfastness in less than an hour.
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Included Boot CoversThe kit contains 64 ounces of BASF Drive XLR8 concentrate and disposable boot covers; its listing identifies post-emergent use on Bermuda, Zoysia, and Fescue.
View on Amazon- Pre/Post Flexibility Atticus Torocity
Compare Post-Emergent Crabgrass Options
| # | Product | Weight | Form | Buy |
|---|---|---|---|---|
| 1 | 1. BASF Drive XLR8Best Overall | 4.2 lb | Liquid | View on Amazon |
| 2 | 2. USA Supply DriveLongest Residual | — | Liquid | View on Amazon |
| 3 | 3. Bug And Blade Drive XLR8 KitIncluded Boot Covers | 5 lb | Liquid | View on Amazon |
| 4 |  4. Atticus TorocityPre/Post Flexibility | 8 oz | Liquid | View on Amazon |
| 5 |  5. Liquid Harvest MesotrioneMesotrione with watering plan | 8 oz | Liquid | View on Amazon |
| 6 |  6. Agrisel QuinKill MaxMeasured lawn treatment | 16 oz | Liquid | View on Amazon |
Detailed Reviews: Best Post Emergent Crabgrass Herbicide
#1 · Best Overall
1. BASF Drive XLR8
- Weight: 4.2 lb
- Form: Liquid
Best for: Fast-uptake lawn concentrate.
Why it ranks #1: Its 64-ounce quinclorac concentrate is explicitly for post-emergent crabgrass control and lists a 30-day residual plus rainfastness in less than an hour.
BASF’s water-based quinclorac formula is the defining feature here: it supports faster plant uptake for post-emergent grassy and broadleaf weed control. The concentrate also lists rainfastness in less than an hour and up to 30 days of residual control, useful for buyers prioritizing quick uptake and longer coverage.
The water-based formulation is described as enabling faster plant uptake, so it suits a post-emergent treatment workflow where quick uptake matters. Its rainfastness in less than an hour can help reduce concern about rain interrupting treatment soon after application. Up to 30 days of residual control may also reduce how often weeds need another application. This is a liquid concentrate, and the supplied directions specify mixing it before use; plan for measuring and preparing a spray solution.
- Water-based formulation supports faster plant uptake
- Rainfast in less than an hour
- Up to 30 days of residual control
- Targets grassy and broadleaf weeds
- The concentrate must be measured and mixed before application.
Skip it if you want a pre- and post-emergent mesotrione option; Liquid Harvest Mesotrione is listed for both uses.
BASF Drive XLR8 suits lawn and turf owners seeking post-emergent grassy and broadleaf weed control with fast uptake and residual coverage. Choose it if measuring and mixing a liquid concentrate fits your application routine.
Full product details
| Brand | BASF |
|---|---|
| Included Components | 1 bottle |
| Item Form | Liquid |
| Item Weight | 4.2 pounds |
| Manufacturer | BASF |
| Model Number | AMDRIVEXLR |
Listed on Amazon as: BASF Drive XLR8 Crabgrass Killer for Lawn & Turf, Post Emergent Grassy & Broadleaf Weed Control, Active Ingredient Quinclorac, 30 Day Residual, Herbicide, Concentrate 64 Ounce
View on Amazon#2 · Longest Residual
2. USA Supply Drive
- Form: Liquid
Best for: Mature crabgrass treatment.
Why it ranks #2: This 64-ounce quinclorac listing targets mature crabgrass and states 30–45 days of residual control, with rainfastness in less than an hour.
This Drive crabgrass concentrate specifically claims control even at mature crabgrass stages, making that the key reason to consider it for established infestations. Its water-based formula is described as fast-uptake and rainfast in less than an hour, with 30–45 days of residual weed control.
The mature-stage crabgrass claim makes this product relevant when weeds are past their early growth stage. Its stated targets also include foxtail, kikuyugrass, signalgrass, clover, dandelion, and bindweed, supporting treatment of several grassy and broadleaf weeds. The proprietary water-based formula is described as enabling fast uptake and becoming rainfast in less than an hour, while 30–45 days of residual control can extend coverage after application. Protective gloves are included with this listing.
- Claims control of crabgrass at mature stages
- Targets listed grassy and broadleaf weeds
- Rainfast in less than one hour
- 30–45 days of residual weed control
- Handling requires protective gloves, as stated in the safety information.
Skip it if you want a listed pre-emergent option for newly seeded turf; Atticus Torocity states both pre-emergent activity and use on newly seeded areas.
This Drive concentrate fits lawn owners facing mature crabgrass alongside listed grassy or broadleaf weeds, especially when a short rainfast window matters. Follow the protective-glove requirement and consider its stated 30–45-day residual window.
Full product details
| Brand | USA Supply |
|---|---|
| Item Form | Liquid |
Listed on Amazon as: Drive Crabgrass Killer Lawn & Turf, Post Emergent Grassy & Broadleaf Weed Control, Ingredient Quinclorac, 30 Day Residual, Herbicide, Concentrate 64 Ounce w/USA Supply Protective Gloves
View on Amazon#3 · Included Boot Covers
3. Bug And Blade Drive XLR8 Kit
- Weight: 5 lb
- Form: Liquid
Best for: Bermuda, Zoysia, and Fescue lawns.
Why it ranks #3: The kit contains 64 ounces of BASF Drive XLR8 concentrate and disposable boot covers; its listing identifies post-emergent use on Bermuda, Zoysia, and Fescue.
This two-piece kit pairs BASF Drive XLR8 concentrate with disposable boot covers, while its listing names Bermuda, Zoysia, and Fescue turf as intended lawn types. The post-emergent quinclorac product also specifies 30-day residual control, giving buyers a defined coverage window to consider.
The listing identifies Bermuda, Zoysia, and Fescue, helping buyers check whether their turf matches the stated use before choosing this kit. BASF Drive XLR8 is described as a post-emergent weed killer, so its stated role is treatment after weeds emerge. The 30-day residual claim gives a clear duration for planning follow-up care. Included disposable boot covers add a handling item to the two-piece kit alongside the 64-fluid-ounce concentrate.
- Names Bermuda, Zoysia, and Fescue turf
- Post-emergent weed-control use
- 30-day residual claim
- Includes disposable boot covers with the concentrate
- The stated residual-control period is 30 days.
Skip it if you need a stated rainfast time under an hour; USA Supply Drive Crabgrass Killer lists that feature.
This kit fits owners of Bermuda, Zoysia, or Fescue lawns seeking post-emergent quinclorac treatment and included disposable boot covers. Check that your turf matches one of the named types and plan around the stated 30-day residual period.
Full product details
| Brand | Bug And Blade |
|---|---|
| Included Components | BASF Drive XLR8 concentrate 64 fl oz; 1 pair disposable boot covers |
| Item Form | Liquid |
| Item Weight | 5 pounds |
| Manufacturer | BASF Corporation |
| Model Number | BB-DXLR8-64-KIT |
Listed on Amazon as: Crabgrass Killer for Lawns, BASF Drive XLR8 Quinclorac Herbicide Concentrate 64 oz | Post-Emergent Weed Killer for Bermuda, Zoysia & Fescue Turf, 30-Day Residual | 2-Pc Kit
View on Amazon#4 · Pre/Post Flexibility
4. Atticus Torocity
- Weight: 8 oz
- Form: Liquid
Best for: Flexible timing for seeded turf.
Why it ranks #4: Its 8-ounce concentrate contains 40.0% mesotrione and is described as having both pre-emergent and post-emergent activity for lawns.
Atticus Torocity combines pre- and post-emergent activity, a useful distinction for lawn owners treating existing weeds while also seeking prevention. Its 40.0% mesotrione formula is described for newly seeded and established turf, and the included pre-marked syringe supports measuring the concentrate for application.
Pre- and post-emergent activity gives Torocity flexible timing across preventive and curative lawn treatment, rather than limiting its stated use to only one stage. The supplied facts also identify both newly seeded areas and established turf, extending its stated fit across those lawn conditions. A pre-marked syringe is included to make measuring easier, helping users portion the concentrate without relying on an unmarked measuring tool. The product is an 8-ounce liquid concentrate.
- 40.0% mesotrione active ingredient
- Pre- and post-emergent activity
- Stated for newly seeded and established turf
- Includes a pre-marked measuring syringe
- The supplied facts do not state a residual-control duration.
Skip it if you need a stated rainfast window and residual-control duration; BASF Drive XLR8 lists both details.
Atticus Torocity suits homeowners who want mesotrione with both pre- and post-emergent timing, including on newly seeded or established turf. Its included syringe helps with measuring, while the supplied details do not specify residual duration.
Full product details
| Brand | Atticus |
|---|---|
| Included Components | 8oz Bottle of Torocity |
| Item Form | Liquid |
| Item Weight | 8 ounces |
| Manufacturer | Atticus |
| Model Number | 520115 |
Listed on Amazon as: Atticus Torocity Mesotrione Herbicide (8oz) – (Compare to Tenacity)
View on Amazon#5
5. Liquid Harvest Mesotrione
- Weight: 8 oz
- Form: Liquid
Best for: Mesotrione with watering plan.
Why it ranks #5: This 8-ounce mesotrione concentrate lists crabgrass among 46 target weeds, but full weed death may take 2–3 weeks and activation requires water.
Liquid Harvest’s mesotrione is listed for both pre- and post-emergent use, giving lawn owners a single concentrate for preventive and existing-weed treatment. It targets crabgrass among 46 listed broadleaf and grassy species, while its water-activation requirement makes rainfall or planned watering part of the application workflow.
The broad target list includes crabgrass, clover, chickweed, and dandelion, which can make this option relevant when a lawn has more than one weed type. Mesotrione absorbs immediately and starts working after application, although full weed death may take two to three weeks. Activation requires water; if rain does not occur within 10 days, the supplied facts specify applying 0.15 inches of water. That requirement is important when scheduling treatment and follow-up watering.
- Pre- and post-emergent use
- Targets 46 listed broadleaf and grassy species
- Crabgrass is specifically listed among target weeds
- Suitable for several named turf grasses
- Activation requires rainfall or 0.15 inches of applied water within 10 days.
Skip it if you need a formula listed for faster uptake and under-an-hour rainfastness; BASF Drive XLR8 lists both features.
Liquid Harvest Mesotrione fits lawn owners who want pre- and post-emergent use and can plan for activation watering. Account for the stated two-to-three-week period for full weed death when timing treatment and judging results.
Full product details
| Brand | Liquid Harvest |
|---|---|
| Included Components | Weed Killer |
| Item Form | Liquid |
| Item Weight | 8 ounces |
| Manufacturer | Sanco Industries |
| Model Number | 02106 |
Listed on Amazon as: Liquid Harvest Mesotrione – 8oz – Mesotrione Concentrate (Compare to Tenacity) – Pre and Post-Emergent Weed Killer for Lawn and Turf Grasses
View on Amazon#6
6. Agrisel QuinKill Max
- Weight: 16 oz
- Form: Liquid
Best for: Measured lawn treatment.
Why it ranks #6: Its listing supplies a 0.5–1.45-fluid-ounce-per-gallon mixing range for 1,000 square feet, but gives limited product-specific detail about crabgrass control.
Agrisel QuinKill Max provides a specified application range—0.5 to 1.45 fluid ounces per gallon for 1,000 square feet—so buyers can calculate a treatment amount from lawn area. The listing identifies it as lawn-friendly and pet safe, with instructions to avoid application when rain is expected within 24 hours.
The supplied directions begin with measuring the area to be treated, then calculating the solution amount for preventive or curative treatment. That workflow connects the stated coverage rate of 0.5–1.45 fluid ounces per gallon per 1,000 square feet to the size of the treatment area. The rain restriction also affects scheduling: do not apply when rain is expected within 24 hours. The product is a 16-ounce liquid, and the label is identified as the source for complete application rates and information.
- Lawn-friendly and pet safe, as stated in the title
- Specified range of 0.5–1.45 fl oz per gallon per 1,000 sq ft
- Directions cover preventative or curative treatment
- Area measurement guides solution calculation
- Do not apply if rain is expected within 24 hours.
Skip it if you need a listed under-one-hour rainfast window; USA Supply Drive Crabgrass Killer specifies that timing.
Agrisel QuinKill Max suits buyers who want a measured lawn treatment and can calculate solution from the area being treated. Its rain restriction makes a dry 24-hour forecast an important fit consideration before application.
Full product details
| Brand | Agrisel |
|---|---|
| Item Form | Liquid |
| Item Weight | 16 ounces |
| Manufacturer | Agrisel |
Listed on Amazon as: Agrisel QuinKill Max Weed Killer, Lawn-Friendly, Pet Safe, 16 Ounces
View on AmazonWhy post-emergent crabgrass can survive treatment
A post-emergent application may not deliver quick visible results, and the product details here show why patience and label directions matter. Liquid Harvest Mesotrione says the herbicide starts working after application but may take 2–3 weeks for full weed death; it also says water is needed for activation, with 0.15 inches of water recommended if rain does not arrive within 10 days. Judging that product too soon could lead to unnecessary repeat treatment.
Drive XLR8, by contrast, lists rainfastness in less than an hour and a 30-day residual, while the USA Supply Drive listing states 30–45 days of residual control. Those statements do not mean every application will work identically: weed stage, weather, turf type, mixing, and application directions can matter.
Follow the exact product label rather than treating residual duration or rainfastness as a guarantee of control.
How to Choose a Crabgrass Herbicide
Active ingredient and control role
Look for an active ingredient and use description that fit your goal of treating emerged crabgrass. BASF Drive XLR8 and USA Supply Drive list quinclorac; Atticus Torocity and Liquid Harvest Mesotrione list mesotrione. Torocity describes both pre- and post-emergent activity, while Liquid Harvest identifies crabgrass among 46 target weeds and also describes pre-emergent use.
The Drive listings are the clearest match for shoppers prioritizing post-emergent crabgrass control. Mesotrione may suit buyers who also want the listed pre-emergent role, but the supplied details include water activation and a 2–3-week period to full weed death for Liquid Harvest.
Check each label for the exact use and turf directions.
Residual and rain timing
Compare stated residual and rainfastness if your application timing is a concern. BASF Drive XLR8 lists up to 30 days of residual control and says it becomes rainfast in less than an hour; USA Supply Drive states 30–45 days of residual control and the same rainfastness timing. Liquid Harvest Mesotrione instead specifies activation with water and advises applying 0.15 inches of water if rainfall does not occur within 10 days.
These label details favour different conditions: the Drive listings may appeal to buyers looking for stated residual control and a short rainfast interval, while Liquid Harvest may suit someone able to follow its water-activation directions. Rainfastness does not mean rain is needed for activation; follow the specific product label.
Concentrate size and included items
Check the listed size and kit contents against the area you need to treat and the equipment or supplies you already have. BASF Drive XLR8 and the USA Supply Drive listing each specify 64 ounces, while the Bug And Blade Drive XLR8 Kit also includes disposable boot covers. Atticus Torocity and Liquid Harvest Mesotrione are 8-ounce concentrates; Agrisel QuinKill Max is listed as 16 ounces and gives a mixing range of 0.5–1.45 fluid ounces per gallon for 1,000 square feet.
Larger bottle volume alone does not establish how much area a product will treat, because application rates differ. The 64-ounce listings may suit buyers comparing larger containers, while smaller concentrates may suit buyers wanting a smaller listed bottle.
Use label rates to calculate coverage.
Which Crabgrass Herbicide Should You Choose?
For a straightforward post-emergent crabgrass option, choose BASF Drive XLR8: it lists quinclorac, a 30-day residual, and rainfastness in less than an hour. If the stated residual duration is your deciding factor, USA Supply Drive lists 30–45 days and specifically mentions control of mature crabgrass. Choose Bug And Blade Drive XLR8 Kit if you want the same named BASF concentrate in a listing that includes disposable boot covers.
For a mesotrione option with described pre- and post-emergent activity, Atticus Torocity is the clearest fit. Liquid Harvest Mesotrione lists crabgrass among 46 weeds but requires water activation and may take 2–3 weeks for full weed death.
Agrisel QuinKill Max is harder to assess for this use because its listing provides less crabgrass-specific detail. Always verify turf compatibility and directions on the label.
Frequently Asked Questions
When should I apply post-emergent crabgrass herbicide for best results?
Apply according to the product label, which gives the directions for timing and use. Crabgrass control can vary by product and the weed’s growth stage; the USA Supply Drive listing specifically mentions mature crabgrass. Check the label for the intended application stage, turf compatibility, and any weather or watering instructions before treating.
Can I use these herbicides on newly seeded or recently overseeded lawns?
Check the specific product label before treating newly seeded or overseeded grass. The supplied listings do not state a general safe waiting period, and these products include different active ingredients and use directions. Confirm that the product is permitted for your turf and its establishment stage, and follow any seeding or reseeding restrictions on the label.
How long should people and pets stay off treated grass?
Follow the product label for how long people and pets should stay off treated grass; the supplied listings do not establish one interval that applies to every product. Check the label’s re-entry directions before application, and keep people and pets away for the specified period. Do not assume that a “pet safe” title replaces label directions.
Which option lists rainfastness or residual control details?
BASF Drive XLR8 specifically lists rainfastness in less than an hour and a 30-day residual. The USA Supply Drive listing claims 30–45 days of residual control. These are listing claims, so verify application directions and conditions on the product label rather than assuming the durations apply in every situation.
How do the mesotrione options differ from the quinclorac options?
The listings identify BASF Drive XLR8 and the USA Supply Drive as quinclorac products. The mesotrione listings describe pre- and post-emergent activity; Liquid Harvest also lists crabgrass among 46 weeds and notes water activation and 2–3 weeks for full weed death. Compare labels for turf compatibility and directions.
Final Words
For a dedicated post-emergent crabgrass product, BASF Drive XLR8 is the leading fit based on its listed quinclorac, 30-day residual, and rainfastness in less than an hour. Choose USA Supply Drive if its stated 30–45-day residual or mature-crabgrass claim is more relevant. For mesotrione, compare Atticus Torocity and Liquid Harvest; verify turf compatibility and every application direction on the label.
