Getting the best herbicide for dallisgrass is the answer to your yard problem against the troublesome weed. It’s one of the most invasive perennials that can hit your beautiful turf strongly. Each dallisgrass seed is fertile, which means they don’t need to pollinate to grow. They are also resistant to frost and drought, and if you haven’t completely eradicated those tough roots, this weed will grow back from its clumping roots.
Although some use dallisgrass as a pasture grass, it can be an annoying part of the garden where you don’t want it to grow. It can infest the land, ruing your turf and landscape, and stand out like a sore thumb. Fortunately, you can put an end to this pesky weed and save your yard with the best herbicide for dallisgrass.
So, how can you get rid of dallisgrass and prevent it from spoiling your yard again? Check out our complete product reviews for the most effective herbicides that can fight and control dallisgrass infestations. However, if you want to get right into the best part, you can skim through our top eight picks for the best herbicide for dallisgrass.
Top 8 Best Herbicide for Dallisgrass Reviewed
- Quali-Pro Dithiopyr 40 WSB Specialty Herbicide – Best Overall
- Roundup Quickpro Glyphosate Diquat Herbicide – Best Value
- Makaze Herbicide 41% Glyphosate Generic – Editor’s Choice
- Quali-Pro Prodiamine 65 WDG Pre-Emergent Herbicide
- The Andersons Barricade Professional-Grade Weed Control
- BASF Pylex Herbicide
- Resolute 4FL Herbicide
- Bayer 704080A All-in-One Weed and Crabgrass Killer
- 1 #1. Quali-Pro Dithiopyr 40 WSB Specialty Herbicide – Best Overall
- 2 #2. Roundup Quickpro Glyphosate Diquat Herbicide – Best Value
- 3 #3. Makaze Herbicide 41% Glyphosate Generic – Editor’s Choice
- 4 #4. Quali-Pro Prodiamine 65 WDG Pre-Emergent Herbicide
- 5 #5. The Andersons Barricade Professional-Grade Weed Control
- 6 #6. BASF Pylex Herbicide
- 7 #7. Resolute 4FL Herbicide
- 8 #8. Bayer 704080A All-in-One Weed and Crabgrass Killer
- 9 Quali-Pro
- 10 Roundup
- 11 Makaze
- 12 Preemergent vs. Post-emergent Herbicide
- 13 Selective vs. Non-selective Herbicide
- 14 Contact vs. Systemic Herbicide
- 15 Active Ingredient
- 16 Coverage
- 17 Rainproofing
- 18 Formulation and Mixing/Usage Instruction
- 19 Are herbicides safe for pets?
- 20 Can my herbicide kill other grass on my lawn?
- 21 How long do I have to wait for the herbicide to kill dallisgrass?
- 22 How many times do I need to apply herbicides?
- 23 Related posts:
#1. Quali-Pro Dithiopyr 40 WSB Specialty Herbicide – Best Overall
- Active Ingredient: 40% Dithiopyr
- Target Pests: dallisgrass (seedling), barley, brome, crabgrass, bluegrass, barnyard grass, dandelion
- Formulation: professional product; water-soluble powder
- Special Features: pet safe; 2-10 acres yield per gallon
- Best for use in ornamental turf, landscape, golf courses, industrial sites, non-cropland
Quali-Pro is a trusted brand that offers many kinds of lawn care solutions. It pioneers in formulation innovation to produce various lawn care products using different active ingredients for different purposes. The Quali-Pro Dithiopyr 40 WSB, in particular, is a top favorite. Although it is a pre-emergent herbicide, it offers early post-emergent effects, which means it can still offer dallisgrass control at its early growth stage. Plus, it can prevent any future infestation in your landscape.
You can use this herbicide on established golf courses, industrial sites, ornamental turf, commercial sod farms, non-cropland, and anywhere away from bodies of water. It’s also safe to use if you have pets, although it’s necessary to observe its drying time before letting your pet roam around the treated space.
This herbicide comes in powdered form, which you need to dilute in water. It might be a small package, but don’t let that fool you because a 5oz packet of this product can cover over a 10,000-square feet area.
|Outstanding pre-emergent solution with early post-emergent effects||Not the best option for established dallisgrass
|Non-staining and low-odor formulation|
|Easy-mixes in spray tanks|
#2. Roundup Quickpro Glyphosate Diquat Herbicide – Best Value
- Active Ingredient: 73.3% Glyphosate; 2.9% Diquat Dibromide
- Target Pests: brush, annual weeds, perennial weeds
- Formulation: professional product
- Special Features: faster burndown; super-fast dry time; rainproof
- Best for use in recreational areas, parks, residential areas
Roundup is a widely used brand in terms of yard care, and its Quickpro herbicide is an effective solution for dealing with the tough dallisgrass in your turf. It has a strong formulation that promises fast burndown and quick results, thanks to its two active ingredients. The Roundup Quickpro combines Glyphosate and Diquat Bromide to get rid of the toughest weeds quickly. It shows noticeable effects like yellowing and browning of weeds and grasses 24 hours from your initial application.
It’s a non-selective herbicide, so careful application is needed if you have precious plants nearby. However, its non-selective property makes it highly efficient to clear the lawn from any vegetation if that is your purpose. The unique formulation of the Roundup Quickpro gets rid of grass and broadleaf weeds, woody brush, and even tree roots. What’s even better is it’s a systemic herbicide that kills weeds like dallisgrass down to the roots, preventing future regrowth.
Another advantage of using Roundup Quickpro is its fast-drying property, making it rain and water-resistant only an hour after application. It won’t get washed out by water or rain, so there’s no reapplication necessary afterward.
Using the Roundup Quickpro is also hassle-free. It comes in a dustless water-soluble granular formulation containing surfactant. It easily mixes with water, and no additional surfactant is necessary. While Quali-Pro is a pre-emergent herbicide, this one is a post-emergent solution. It’s what you need to get rid of established weeds in your yard.
|Fast burndown of dallisgrass||Toxic to aquatic animals
|Shows results after 24 hours|
|Dustless granule formula|
|Rainproof after one hour|
#3. Makaze Herbicide 41% Glyphosate Generic – Editor’s Choice
- Active Ingredient: 41% Glyphosate
- Target Pests: annual weeds, perennial weeds, woody brush
- Formulation: water-soluble liquid
- Special Features: superior leaf penetration, crop-safe, rainproof after 30 minutes
- Best for use in walkways, patios, around shrubs, trees, and flowers
Glyphosate is a popular active ingredient in many herbicides. It’s a highly effective weed killer, and its high formulation in Makaze Herbicide is something you can count on when getting rid of dallisgrass in your yard. Makaze Herbicide contains 41% glyphosate, making it one of the highest glyphosate-containing weed killer.
Its high concentration offers broad-spectrum control over a wide variety of perennial weeds, annual weeds, brushes, and even tree stumps. It’s a post-emergence herbicide that can deal with already growing dallisgrass in your lawn. Another advantage of this product is its systemic action with Leci-Tech technology. Makaze herbicide gets to, on, and in the weeds and grasses, providing superior penetration to kill plants down to the roots.
What’s even better is this herbicide is crop-safe, so there’s no need to worry about your vegetables nearby. The water-soluble liquid is also rainproof 30 minutes after your application, ensuring that no chemical gets wasted.
Makaze Herbicide features a formulation a bit similar to Roundup as it already contains a surfactant, making it hassle-free and quick to mix with water. It also offers no limitation on what equipment you want to use during application.
|No additional surfactant needed||May cause skin irritation
|Rainproof after 30 minutes|
|Easy mixing and application|
|No residual soil activity|
- Active Ingredient: 65% Prodiamine
- Target Pests: broadleaf weeds and grasses
- Formulation: professional product
- Special Features: spring and fall use
- Best for use in sod nurseries, established turf grasses, landscape ornamentals, Christmas tree farms, established perennials, container ornamentals
Before weeds and grasses like dallisgrass start infesting your yard, using pre-emergent herbicides will be your lifesaver. Another excellent option for that is the Quali-Pro 65 WDG Pre-emergent herbicide. Like the 40 WSB herbicide from Quali-Pro, this one is a professional-grade solution for caring for your flower beds and lawn.
Its only difference with the Quali-Pro 40 WSB mentioned above is the active ingredient it uses. Instead of Dithiopyr, this one features 65% of Prodiamine. It is another potent herbicide that offers fast-killing action against many weed and grass types. This product can get rid of dallisgrass in your lawn, including foxtail, spurge, knotweed, chickweed, annual bluegrass, and other tough and pesky weeds.
If you want an herbicide rated for professional use that can kill weeds before they start growing, the Quali-Pro 65 WDG is a fantastic choice. Plus, it’s suitable for use in beautiful landscapes and parks as it’s a selective herbicide. It won’t damage already established perennials and grasses, including your precious plants and flowers.
The herbicide’s liquid formulation makes it easy and hassle-free to mix and use. It offers flexible application early in spring or late in the fall season, depending on your convenience.
|Won’t kill established perennials and grass||Requires extra precaution during application process
|Flexible application in spring or fall|
|Easy-to-mix liquid formulation|
|Potent Prodiamine formulation|
- Active Ingredient: 0.48% Prodiamine
- Target Pests: grassy and broadleaf weeds
- Formulation: granule
- Special Features: pet safe, offers residual control
- Best for use in hardwood seedling nurseries, non-crop areas, wildflower plantings, established perennials, landscape ornamentals, lawns, turfs
If you want a cost-effective solution to keep dallisgrass from growing in your beautifully manicured lawn, the Barricade Weed Control from The Andersons is a great option. This product can deal with 30 different grass and broadleaf weeds, including annual bluegrass, pigweed, witchgrass, cup grass, and spurge.
You can use it on established lawns, ornamental beds, landscapes, and turfgrasses. It’s a professional-grade weed killer backed and used by many turf care professionals, giving you a guarantee that it won’t harm your precious plants.
The Barricade contains 0.48% of Prodiamine as its active ingredient, and while it might not sound much, don’t let that fool you. It has enough active ingredient to control dallisgrass and other weeds before they even start sprouting. It’s a perfect solution to keep golf courses, sod farms, athletic fields, and lawns in fantastic condition.
One other notable feature of this product is its patented Dispersible Granular technology. This cutting-edge science allows each granule of the herbicide to disperse into potent microparticles as it mixes with water. This way, using the product gives you more control over where you want it to go.
|Kills more than 30 grass and broadleaf weeds||Doesn’t eliminate existing weeds
|Cost-effective weed preventer herbicide|
|Suitable for spring or fall application|
|DG Pro formulation|
- Active Ingredient: 29.7% Topramezone
- Target Pests: perennial grass weeds, annual grass weeds
- Formulation: suspension
- Special Features: easy absorption by leaves, shoots, and roots; pet safe
- Best for use in sod farms, residential and commercial lawns, cemeteries, athletic fields, parks, golf courses, roadsides
Another highly effective post-emergent herbicide that can control already growing dallisgrass is the BASF Pylex. It’s specially formulated with 29.7% Topramezone, a selective active ingredient in herbicides that can deal with a broad spectrum of broadleaf weeds and grasses. You can use it on residential and commercial lawns, cemeteries, parks, sod farms, schools, and airports without worrying about damaging the lawn, flowers, and other plants.
The BASF Pylex is a systemic herbicide, making it effective, especially on spot treatments. However, it’s also suitable for other application methods like broadcast spray. Either way, this herbicide can kill unwanted weeds down to the roots.
This suspension solution is easily absorbed by the leaves, shoots, and roots, although it works best when used on actively growing weeds and grasses.
|Pet safe after enough drying time||Toxic to terrestrial and aquatic plants
|Excellent spot spray solution|
|Kills weed roots|
- Active Ingredient: 40.7% Prodiamine
- Target Pests: grassy and broadleaf weeds
- Formulation: group 3 herbicide; professional product
- Special Features: pet safe
- Best for use in warm and cool-season turfgrasses, sod nurseries, lawns, landscape ornamentals
Selective herbicides are your best bet if you want to get rid of the unwanted dallisgrass or other weeds in your yard without harming nearby plants, bushes, and trees. The Resolute 4FL is the best herbicide for dallisgrass if you want to stop them before they start sprouting and ruining your lawn. This pre-emergent control tackles a wide range of broadleaf weeds and grasses, a perfect solution for established lawns, sod nurseries, turfgrasses, and Christmas tree farms.
This herbicide works in two ways, stopping weeds from continuing to grow and preventing newly germinated weeds by freezing them. The 40.7% Prodiamine active ingredient makes it potent enough for use during the cool or warm season.
The only downside is there are a lot of limitations when using this herbicide. It includes not blending it with other granular or dry fertilizer, applying it near an irrigation system, and grazing livestock on treated surfaces.
|Suitable for cool and warm season use||Stains concrete
|Doesn’t harm flowers and other plants|
|Freezes newly germinated weeds|
|Safe for pets after drying time|
- Active Ingredient: 4.85% 2,4-D, 1.61% Quinclorac, 0.45% Dicamba
- Target Pests: grassy and broadleaf weeds
- Formulation: exclusive formula
- Special Features: pet safe; rainproof in one hour
- Best for use in lawns
Bayer is among the easily recognizable brands if you’re looking for herbicides, and its 704080A All-in-One Weed and Crabgrass Killer is highly effective for getting rid of dallisgrass. It features a unique and exclusive formulation using three highly effective active ingredients for fast and best results. This herbicide can tackle a yard infested with dallisgrass and other weeds in one single step.
It can dry out and kill grasses like St. Augustine, Centipede grass, Carpet grass, and Bahiagrass, but leave Bentgrass, Kentucky grass, Bermuda grass, Rye, and Buffalo grass intact. What’s even better is getting the most from every application as this solution becomes rainproof one hour after initial application.
|Kills up to 200 different grass and weed types||Not suitable for use on all lawn types
|Kills grass without harming the lawn|
|Kills weeds up to the roots|
Best Herbicide for Dallisgrass – Quali-Pro Dithiopyr 40 WSB Specialty Herbicide
There are tons of herbicide choices, but our top pick as the best herbicide for dallisgrass is the specialty formulation from Quali-Pro. It has a high concentration of DithiopyrDithiopyr, an effective pre-emergent active ingredient that can prevent dallisgrass from growing, thus preventing any infestation in your landscape.
Besides that, it also has limited post-emergent control over some grasses and weeds, so you can still get rid of dallisgrass at its early growth. Quali-Pro Dithiopyr 40 WSB is a fantastic solution for industrial sites, sod farms, non-cropland, ornamentals, and golf courses. It can keep your landscape free from pesky weeds and grasses like dallisgrass with a couple of applications each year.
It’s non-staining and low-odor formulation makes this herbicide much easier and comfortable to work with. Plus, it can get rid of other tough weeds and grasses besides dallisgrass. Quali-Pro Dithiopyr specialty herbicide is also effective against 40 other grassy and broadleaf weeds like crabgrass, spurge, oxalis, bluegrass, chickweed, ryegrass, and goosegrass.
The water-soluble powder formula easily mixes with water in spray tanks and works well with other registered herbicides.
Best Herbicide Brands for Dallisgrass
There are many choices for herbicide brands in the market, but not all of them deliver promises of getting rid of pesky dallisgrass from your turf. If you’re looking for high-end brands with highly effective products to take care of your lawn for you, here are our top three favorites.
Quali-Pro is a top brand when it comes to post-patent formulations. They focus on innovation and provide a wide array of active ingredients ideal for professionals and everyone in the industry. Quali-Pro has a vast collection of lawn care solutions, disease control formulations, insect control, and turf enhancement products.
In terms of weed control, Quali-Pro works with a variety of active ingredients like 2,4-D, Glyphosate, Sulfentrazone, Dicamba, Metsulfuron, Prodiamine, Quinclorac, and many others. However, our top favorite from the brand against dallisgrass is the DithiopyrDithiopyr based herbicide.
Roundup is a popular herbicide brand in the industry, mainly producing glyphosate-based solutions for all things that involve lawn care. It’s one of the most widely-used herbicide in the United States and many other countries for their broad-spectrum solution.
The brand started in the early 1970s and now, with nearly 50 years of experience in the industry, trusted and approved in over 160 different countries. In particular, Roundup herbicides work well for lawn care professionals, landscapers, and even homeowners looking for a simple yet effective way to keep the lawn healthy.
Makaze is a fertilizer brand from Loveland Products, a famous manufacturer of high-performing input products used for non-crop and agricultural industries and professionals. Loveland Products has a wide collection of solutions for seed treatment, fertilizers, plant nutrition, and crop protection products, including the Makaze herbicide.
Makaze is another popular option for getting rid of dallisgrass and other pesky weeds and grasses for its Leci-Tech technology. It gets into, on, and in the plants to kills it 100% and prevent any regrowth.
What to Consider When Buying Herbicides for Dallisgrass
The herbicides we listed and reviewed above effectively eliminate dallisgrass, but they have their advantages and drawbacks. That said, not all of them will be the best herbicide for dallisgrass in your yard. It’s why it’s essential to choose one that is ideal for your specific dallisgrass infestation problems.
Check out some important aspects that you need to consider in choosing the best herbicide for dallisgrass.
Preemergent vs. Post-emergent Herbicide
Not all herbicides are the same, and one of the first things you need to consider when buying one is whether you need a pre-emergent or a post-emergent herbicide.
If you can already see dallisgrass infestation in your yard, then you need to get a post-emergent herbicide. It’s the type that can get rid of existing weeds and grasses. Meanwhile, if you want to prevent weeds from growing on the lawn, you need to use a pre-emergent herbicide. This weed killer type prevents germination of dallisgrass and other weeds, stopping them from infesting your turf before they can even grow.
Selective vs. Non-selective Herbicide
Another critical choice you have to make in choosing the best herbicide for dallisgrass is between a selective and a non-selective type. It will depend on your turf area or where you want to use the herbicide and your purpose for using it. If you only want to target the pesky dallisgrass in your garden, leaving the lawn and nearby vegetation, then a selective herbicide is best. Meanwhile, if you’re looking to eradicate any grass and weeds in the area, a non-selective herbicide can get rid of everything in its wake.
Contact vs. Systemic Herbicide
When choosing the best herbicide for dallisgrass for your yard, you also need to choose the ideal way to get rid of those weeds and grass. There are two options available, contact and a systemic herbicide.
Contact herbicides get rid of weeds on impact, which means it can dry out and kill the parts of the plant that it comes in contact with. For instance, if you spray this kind of herbicide on the weeds, it will most likely only kill the leaves, leaving the roots intact. On the other hand, systemic herbicides force grass and weeds to absorb its chemicals for it to take effect. It’s the best way to kill dallisgrass from leaves to the roots, preventing any regrowth.
Again, not all herbicides are the same, including the varying primary active ingredient they have. The effectiveness, selectivity, and rapid results of herbicides primarily depend on the chemicals they contain, making it essential to choose the ideal one for the job.
The most common active ingredient for many herbicides is Glyphosate. Many of them have Glyphosate as the primary ingredients, while others most often have it even at a tiny amount. Glyphosate is a non-selective and systemic herbicide, which means it can eliminate any plant in its wake. It’s one of the most effective ways to clear out an entire yard from unwanted grass and weeds. However, it’s a dangerous chemical to use if you have precious plants, trees, or shrubs nearby.
Another popular active ingredient on many herbicides is diquat, which is a fast-acting and contact herbicide. It gives you results in mere hours from application, although it only dries out the leaves and stems. It means that dallisgrass can still grow as their roots remained intact and undamaged.
Some herbicides also have DithiopyrDithiopyr as an active ingredient. It is a pre-emergent herbicide, which means it’s most effective as a preventative measure before any grass or weeds grow. Herbicides containing this chemical are best applied before grasses start popping up during spring.
Another popular pre-emergent active ingredient in many herbicides is Prodiamine. Like Dithiopyr, Prodiamine herbicides are only best for getting rid of seedling dallisgrass.
Coverage is another essential factor to consider when buying herbicides. However, it’s more than looking at the size of the package. You also need to check how much water you need to mix to the herbicide to work effectively. Some types are already diluted, and while they come in several ounces, they can only cover small spaces. Meanwhile, some tiny packages have a high concentration that only a small amount is needed to cover areas.
Most high-end weed killers will include “rainproof” in their set of specs and features. It describes the time that it takes for the herbicide to become rain resistant after application. Water and rain can dilute the chemicals you applied, so if it rains after you sprayed the herbicide, it can reduce its efficacy. That’s where a rainproof herbicide will work best, especially if you live in a moist or rainy area.
Check out the rainproofing specs of the herbicide, if any. Some of them become rainproof 30 minutes to one hour after application, while others are fast-drying and only have ten minutes rainproofing period.
Formulation and Mixing/Usage Instruction
Lastly, you also need to check out the formulation and mixing and usage instruction of the herbicide you want to purchase. Some herbicides come in granulated or powdered form, while others are liquid that you need to dilute in water first before application. It’s also essential to follow the usage instruction of the herbicide to achieve the best results.
Dallisgrass is among the toughest weeds to deal with, especially once it established itself in your yard. It’s a known persistent perennial weed that resists frost and drought, growing in bare areas and returning each year. Fortunately, there are effective herbicides that can deal with pesky and unwanted weeds and grasses like dallisgrass.
Our top favorite is the Dithiopyr-based pre-emergent herbicide from Quali-Pro. It’s a highly effective preventative measure to stop unwanted weeds from infesting the turf before they can even start growing. And while it’s a pre-emergent herbicide, the Quali-Pro Dithiopyr herbicide also offers early post-emergent control.
However, no single herbicide is the perfect solution for all weed problems. Choosing the best herbicide for dallisgrass will depend on your purpose. A pre-emergent herbicide will help prevent new weeds from growing, while post-emergent herbicides tackle already growing or established dallisgrass. You also have to consider other factors like coverage, a systemic or contact herbicide, and the active ingredient used to choose the best herbicide for dallisgrass.
FAQs (Frequently Asked Questions)
Are herbicides safe for pets?
Weed killers that contain any kind of chemicals would be dangerous to children and pets. Walking through a freshly treated lawn using most herbicides is not advisable as it may cause some chronic health problems. However, some herbicide brands are safer for pets when using the product as the manufacturer advised, including the required drying time for the herbicide.
Can my herbicide kill other grass on my lawn?
It primarily depends whether you are using a selective or non-selective herbicide. Selective herbicides will only kill weeds and grasses in its scope, leaving your turf and other plants safe. However, if you are using a non-selective herbicide, it will kill anything that comes into contact or cause it to burn.
How long do I have to wait for the herbicide to kill dallisgrass?
It depends on the herbicide type that you’re using on your dallisgrass infested lawn. In some cases, fast-acting herbicides will show results after a couple of hours from application. Meanwhile, some formulation may take a few short days to start showing signs or fully kill weeds.
How many times do I need to apply herbicides?
It depends on the weed infestation in your lawn or garden. A single application can do the trick in minor cases, but other times when the weeds and grasses have taken over the area, respraying or reapplying herbicides may be necessary. Check out the manufacturer’s recommendation on your herbicide’s label to ensure product use and reapplication.