If you’re looking for the best herbicide for St. Augustine grass, there are several factors to consider before making a purchase. First and foremost, it’s important to understand the specific needs of your lawn. St. Augustine grass has unique characteristics that require careful selection of herbicides. Consider factors such as the type of weeds you’re targeting, the stage of growth, and the level of maintenance required. Additionally, it’s important to choose a herbicide that is safe for use on St. Augustine grass and won’t cause harm to your lawn.
When choosing a herbicide for St. Augustine grass, it’s crucial to look for a product that is effective in controlling the types of weeds you’re facing. Some herbicides may only target specific types of weeds or certain stages of growth, so be sure to check the label for information on its efficacy. Additionally, consider factors such as the method of application – whether it’s a spray, granular, or concentrate – and choose one that suits your preferences and the size of your lawn.
Looking for a solution to your St. Augustine grass weed problem? Have you struggled to find a herbicide that effectively targets the weeds without damaging your lawn? Stay tuned as we reveal the best herbicide for St. Augustine grass that will conquer those stubborn weeds while keeping your lawn lush and healthy. Discover the secrets to maintaining a beautiful St. Augustine lawn without the headache of persistent weeds. Keep reading to find out which herbicide will make all the difference in your lawn maintenance routine.
10 Best Herbicide For St Augustine Grass
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Killing weeds in St. Augustinegrass lawns with a ready-to-spray formula.
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The product is ideal for eliminating weeds in lawns with St. Augustine and Centipede grass.
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This product is ideal for killing various weeds such as dandelions, clovers, chickweed, and dollarweed on Southern lawns.
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This product is ideal for killing weeds and grasses to the root, providing up to a year of weed and grass control.
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This product is ideal for killing grass weeds after they have emerged.
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Ideal for killing weeds and grasses to the root, providing up to 1 year of weed and grass control.
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Ideal for controlling weeds in St. Augustine grass.
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This product is ideal for preventing the growth of crabgrass, POA annua, and other problematic weeds using pre-emergent herbicide.
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This product is ideal for feeding and controlling weeds in St. Augustine grass lawns.
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Ideal for killing weeds in St. Augustine grass while leaving the grass unharmed.
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1. Ortho Weed B Gon Weed Killer For St. Augustinegrass Ready-To-Spray, 32 Oz
This herbicide is specially formulated for use on St. Augustinegrass, including the popular Floratam variety. With the ability to effectively eliminate over 250 listed weeds (see label for complete list), this product is a must-have for maintaining a healthy and vibrant lawn.
One of the standout features of this herbicide is its guaranteed non-harmful effects on the lawn, provided it is used as directed. This means that homeowners can confidently use this product without worrying about damaging their grass.
Another advantage of this herbicide is its quick rain-proofing capabilities, with protection kicking in just an hour after application. This means that homeowners don't need to worry about the weather ruining their weed-killing efforts.
This product can treat up to 2,500 square feet of lawn, making it a cost-effective option for those with larger outdoor spaces. By using this herbicide, homeowners can achieve a weed-free lawn, promoting a healthy and visually appealing landscape.
2. Clear Lawn Weed Stop, Ready-To-Spray Concentrate (6-Pack)
Introducing a powerful and effective solution for controlling weeds in your lawn – the Weed Killer Concentrate. With its unique formula, this product is designed to target and eliminate weeds while keeping your lawn healthy and vibrant.
One of the standout features of this weed killer is its ability to kill weeds without harming your lawn. When used as directed, it specifically targets and controls both emerged weeds and weeds from seeds, ensuring that your lawn remains unharmed. This makes it an ideal choice for homeowners who want to maintain a pristine lawn while effectively managing weed growth.
The Weed Killer Concentrate contains Atrazine, a key ingredient that is specifically formulated for lawn weed control in all St. Augustinegrass varieties and centipedegrass. This ensures that it is compatible with a wide range of grass types, providing you with the flexibility you need for effective weed control.
One of the major strengths of this product is its ability to tackle tough weeds. It is specially formulated to eliminate established weeds, including dollarweed, sandspur, and Florida betony. This means that you can confidently use it to combat even the most stubborn and persistent weeds in your lawn.
Applying the Weed Killer Concentrate is a breeze, thanks to its innovative QuickFlipTM hose-end sprayer. This convenient feature allows you to activate the spray with a simple flip of a switch, making the application process quick and hassle-free. With this easy-to-use sprayer, you can efficiently cover large areas of your lawn, ensuring that every weed is targeted and eliminated.
3. Southern Lawns' Ultimate Weed Killer Spray
Ortho WeedClear Lawn Weed Killer Ready-To-Spray3 is an effective solution to eliminate weeds from your lawn without causing any harm to it. With its unique formula, it can kill all major broadleaf weeds, including dandelion, clover, oxalis, chickweed, and more (refer to the label for a complete weed list).
This lawn weed killer is designed to deliver visible results in hours, making it a quick solution to your weed problem. It is rainproof in just one hour, ensuring that it stays effective even in wet weather conditions. Plus, with just one application, you can see visible results that last.
Ortho WeedClear Lawn Weed Killer Ready-To-Spray3 is capable of destroying over 250 types of weeds to the root, ensuring that they do not grow back. However, when used as directed, it does not harm the lawn. This herbicide contains ingredients that are effective on a range of grasses, including Kentucky bluegrass, perennial ryegrass, fescues, common bermudagrass, hybrid bermudagrass, bahiagrass, bentgrass, buffalograss, centipedegrass, zoysiagrass, and St. Augustinegrass (except Floratam).
You can easily connect your garden hose to the attached sprayer to spot treat weeds with your desired nozzle setting. The sprayer can treat up to 5,000 sq. ft., making it ideal for treating your entire lawn. The product is easy to use and provides a hassle-free solution to weed control.
Please note that Ortho WeedClear Lawn Weed Killer Ready-To-Spray3 may not be available in all states. Overall, it is a reliable, efficient, and effective solution to weed problems that can help keep your lawn looking healthy and beautiful.
4. Year-Long Weed Killer Concentrate: Fast, Rooted Control
The Ortho GroundClear Year Long Vegetation Killer1 is a concentrated solution that effectively eliminates weeds and prevents their regrowth for up to 1 year with only one application. Its fast-acting formula starts working immediately, making it a reliable solution for those who want to quickly get rid of pesky weeds.
This vegetation killer has been formulated to kill even the toughest weeds and grasses from their roots when used as directed. With its ability to start killing weeds and grasses in just 3 hours, users can see the results in no time.
The Ortho GroundClear Year Long Vegetation Killer1 can be applied using a tank sprayer to various areas, including driveways, sidewalks, gravel areas, rock and desert landscapes, under decks, on parking areas, and along fences and curbs. Its versatility makes it an ideal solution for homeowners looking to maintain a weed-free property.
The packaging of this product may vary, but the effectiveness of the formula remains the same. Users can trust that the Ortho GroundClear Year Long Vegetation Killer1 will work as advertised and provide a year-long solution to weed control.
5. Monterey Lg5328 Getter, Post Emergence Herbicide For Grass Weeds, 8 Oz (Packaging May Vary)
Grass Getter by Monterey is an effective post-emergent herbicide specifically designed to control grass weeds in flowerbeds, vegetable gardens, ground covers, shrubs, and ornamental plants. It is a selective formula that targets unwanted and unsightly weedy grass vegetation while leaving desirable plants unharmed.
This herbicide is capable of killing most annual and hard-to-kill perennial grasses up to one foot tall, including notoriously difficult-to-control species such as crabgrass, Bermuda grass, Johnson grass, quack grass, Canadian thistle, and other broadleaf thistle weeds.
To use Grass Getter, simply mix the concentrated formula with a surfactant oil concentrate and water before applying with a hose end or tank-type feed sprayer. It is important to apply the herbicide when grassy weeds are actively growing and during sunny, warm weather for optimal results.
With Grass Getter, gardeners and homeowners can easily and conveniently control grassy weeds in their lawns and gardens without the risk of injuring or damaging desirable plants. It is an excellent solution for those who want to keep their outdoor spaces looking neat and tidy.
6. Year Long Weed Killer Concentrate – 2 Gal.
Ortho GroundClear Year Long Vegetation Killer1 is a highly effective concentrate formula that enables the user to eradicate weeds and prevent their regrowth for up to one year after a single application. This product is designed to be fast-acting, providing visible results in as little as three hours after application.
The innovative formula of Ortho GroundClear Year Long Vegetation Killer1 is designed to kill even the toughest weeds to the root, ensuring that they will not grow back. By following the instructions provided, the user will be able to effectively manage weeds and grasses in a variety of outdoor spaces including driveways, sidewalks, gravel areas, rock and desert landscapes, under decks, on parking areas, and along fences and curbs.
To ensure optimal results, it is recommended that Ortho GroundClear Year Long Vegetation Killer1 is applied with a tank sprayer. Packaging may vary, but the product remains consistent in its ability to provide long-lasting weed control.
This product is an excellent solution for those looking to maintain a tidy and weed-free outdoor space without the need for constant maintenance. With Ortho GroundClear Year Long Vegetation Killer1, users can feel confident in their ability to keep their outdoor spaces clean and well-maintained for up to one year after a single application.
7. Southern Ag 006130 Atrazine St. Augustine Weed Killer 32oz Specialty Herbicide, Light Tan
This weed control product is designed to effectively and efficiently handle weed infestations in St. Augustine and Centipede grasses, making it an ideal solution for lawn maintenance. The package weight is 1.021 kilograms, and the dimensions are 5.842 L x 19.177 H x 12.954 W (centimeters). One quart of the product is capable of treating up to 3,720 sq ft of lawn.
This powerful weed control solution is designed to provide long-lasting results, ensuring that your lawn remains free from any weed infestations. The product is easy to use and can be applied using a variety of methods, including spraying or pouring. It is important to follow the instructions provided carefully to ensure optimal results and avoid any potential damage to your lawn.
With its impressive coverage area and effective weed control properties, this product is an excellent choice for anyone looking to maintain a healthy and beautiful lawn. Its compact and lightweight design makes it easy to store and transport, so you can always have it on hand when you need it. Whether you're a professional landscaper or a homeowner looking to keep your lawn in top condition, this weed control product is an excellent choice.
8. Yard Master Pro Weed Killer (5oz) – Prodiamine
This 5 oz bottle of pre emergent is specially formulated for DIY enthusiasts who prefer small quantities. One bottle of this product can cover up to 6,000 sq ft at maximum rate for an entire year, making it an excellent value for your money.
This pre emergent is designed to halt the growth of crabgrass and poa annua during spring and fall seasons, but it is also effective against other listed weeds. The water dispersible granule (WDG) should be mixed with water and sprayed out as a liquid via a pump or battery sprayer. It is important to water the product in to ensure its effectiveness.
For spring and fall applications, mix .183 oz or 5.2 grams of prodiamine 65 WDG in 1 gallon of water. This spray mix can cover up to 1,000 sq ft. It is safe to use on all grass types, including Kentucky Bluegrass, Perennial Rye, Turf Type Tall Fescue, Bermuda, Zoysia, St Augustine, Centipede, and Bahia Grasses.
9. Fertilome (10917) St. Augustine Weed & Feed 15-0-4 (32 Lbs.)
This herbicide-fertilizer product is a reliable solution for controlling weeds in lawns while providing essential nutrients to promote healthy growth. The 15-0-4 fertilizer mix is specifically formulated for use on Centipede, Zoysia, and St. Augustine grass types.
It is important to note that this product should not be used on Bermuda Grasses or any other type of Northern grass. To achieve optimal results, it is recommended to apply this product in early spring. Doing so will help to maintain a weed-free lawn throughout the season and improve overall lawn health.
With a coverage area of 5,000 square feet, the application method varies depending on the footage of the area being treated. Detailed application instructions can be found on the product label.
This pre-emergent and post-emergent herbicide-fertilizer is an effective tool that provides long-lasting results. It is the perfect choice for those who want to keep their lawns healthy and weed-free without harming the environment. By using this product, homeowners can enjoy a lush, beautiful lawn all year round.
10. Southern Ag Atrazine St. Augustine Grass Weed Killer, 1 Gallon
This herbicide is an effective solution to eliminate many broadleaf weeds, making it a top choice for homeowners and gardeners. Its versatile formula is also suitable for use on centipede grass, making it a reliable option for those with a variety of lawns.
In addition to its broadleaf weed-killing abilities, this herbicide provides excellent suppression of crabgrass, a common nuisance in many lawns. It also effectively controls both emerged weeds and those that grow from seed, providing long-lasting results that will leave your lawn looking healthy and lush.
Whether you're dealing with dandelions, clover, or other broadleaf weeds, this herbicide is up to the task. Its powerful formula targets weeds at the root, ensuring that they won't regrow and cause further problems. And with its easy application process, you can quickly and easily treat your lawn without any hassle.
Best Herbicide For St Augustine Grass FAQs
Are there any herbicides specifically designed for St. Augustine grass that provide superior results?
Yes, there are herbicides specifically designed for St. Augustine grass that can provide superior results. St. Augustine grass is a popular warm-season turfgrass that requires specific care, including weed control. One effective herbicide for St. Augustine grass is Atrazine. It is a selective herbicide that targets broadleaf weeds and some grassy weeds while being safe for St. Augustine grass. Atrazine helps control weeds like dandelions, clover, and crabgrass, which are common invaders in St. Augustine lawns. Another herbicide option is Floratam Plus, which is formulated specifically for Floratam St. Augustine grass. It targets broadleaf weeds and certain grassy weeds without harming the St. Augustine grass. It is important to carefully read and follow the instructions on the herbicide label to ensure proper application and avoid any damage to the turfgrass. Additionally, consulting with a professional lawn care expert or contacting your local cooperative extension office can provide you with further guidance on the best herbicides for St. Augustine grass in your specific region.
Are there any herbicides that are safe to use on St. Augustine grass during different seasons?
Yes, there are herbicides that are safe to use on St. Augustine grass during different seasons. One commonly recommended herbicide for St. Augustine grass is atrazine. It is effective in controlling a wide range of weeds and is safe to use on established St. Augustine lawns. Atrazine is typically applied in the spring and fall seasons to target both broadleaf and grassy weeds.
However, it is important to carefully read and follow the instructions on the herbicide label to ensure safe and effective application. Additionally, it is advisable to consult with a local horticulturist or lawn care professional who can provide specific recommendations based on your region and the current condition of your St. Augustine grass.
If you are unsure about using herbicides, you may consider alternative methods such as regular mowing, proper watering, and fertilization practices to maintain a healthy St. Augustine lawn and prevent weed growth.
Are there any herbicides that specifically target common St. Augustine grass weeds such as crabgrass or dandelions?
Yes, there are herbicides available that specifically target common St. Augustine grass weeds such as crabgrass or dandelions. One popular herbicide for controlling crabgrass in St. Augustine grass is quinclorac. It is effective in controlling crabgrass without harming the St. Augustine grass. Additionally, there are selective herbicides like 2,4-D or dicamba that can be used to control broadleaf weeds like dandelions in St. Augustine grass. It's important to carefully read and follow the instructions on the herbicide label for proper application and dosage. It is also advisable to consult with a professional or local garden center to ensure you choose the right herbicide for your specific weed problem and St. Augustine grass variety. Additionally, maintaining a healthy, well-fertilized lawn and practicing good cultural practices can help prevent weed infestations.
Are there any organic or natural herbicides that are effective against weeds in St. Augustine grass?
Yes, there are organic or natural herbicides that can be effective against weeds in St. Augustine grass. One option is to use vinegar as a herbicide. Vinegar is a common household item that contains acetic acid, which can kill weeds. However, it is important to note that vinegar is a non-selective herbicide, meaning it can harm any plant it comes into contact with, so it should be applied carefully and directly to the weeds.
Another natural option is corn gluten meal. It is a byproduct of corn processing and works as a pre-emergent herbicide. It prevents weed seeds from germinating, effectively reducing weed growth. However, it is important to apply corn gluten meal before weed seeds have a chance to germinate, so timing is crucial.
Additionally, you can manually remove weeds by hand, using tools like a garden fork or a weed puller. This method is labor-intensive but can be effective in small areas.
It is worth mentioning that while these organic herbicides can be effective, they may not provide the same level of weed control as synthetic herbicides. Therefore, consistent monitoring and maintenance practices like proper mowing, watering, and fertilization are essential in promoting a healthy St. Augustine grass that can better compete with weeds.
Can you recommend a herbicide that effectively eliminates invasive grasses without harming St. Augustine grass?
Yes, I can recommend a herbicide that effectively eliminates invasive grasses without harming St. Augustine grass. One such herbicide that is commonly used for this purpose is called Fenoxaprop-P-ethyl. It is a selective herbicide that specifically targets and controls invasive grasses while being safe for St. Augustine grass. Fenoxaprop-P-ethyl works by inhibiting the growth of target grasses, ultimately leading to their elimination.
Before applying any herbicide, it is important to carefully read and follow the instructions provided by the manufacturer. Additionally, it is advisable to conduct a small test patch in an inconspicuous area to ensure that the St. Augustine grass is not adversely affected by the herbicide.
It is also worth noting that maintaining a healthy and well-maintained St. Augustine grass lawn can naturally help in preventing the growth of invasive grasses. Regular mowing, proper watering, and adequate fertilization can contribute to a robust and dense St. Augustine grass, which can effectively suppress the growth of unwanted grasses.
What herbicide do professionals recommend for maintaining a weed-free St. Augustine grass lawn?
When it comes to maintaining a weed-free St. Augustine grass lawn, professionals often recommend using herbicides that are specifically formulated for this grass type. One such herbicide that is commonly recommended is Atrazine. Atrazine is highly effective in controlling a broad spectrum of weeds that commonly invade St. Augustine grass, including broadleaf weeds and certain grassy weeds. It is important to follow the instructions provided by the manufacturer when using Atrazine or any other herbicide, as proper application techniques and timing are key to achieving the best results. Additionally, it is advisable to consult with a local lawn care professional or extension service in your area to get specific recommendations tailored to your region and the specific weed issues you may be facing.
What is the best herbicide for controlling broadleaf weeds in St. Augustine grass?
When it comes to controlling broadleaf weeds in St. Augustine grass, one of the most effective herbicides is 2,4-D. This selective herbicide targets broadleaf weeds while leaving the St. Augustine grass unharmed. It is available in various formulations, including liquids and granules, making it easy to apply.
Another herbicide that can be effective is dicamba. Like 2,4-D, dicamba is a selective herbicide that targets broadleaf weeds in St. Augustine grass. It is commonly found in combination with other herbicides, providing a broader spectrum of weed control.
It is important to read and follow the instructions on the herbicide label carefully to ensure safe and effective application. Additionally, it is recommended to apply herbicides when the weather conditions are favorable, avoiding high temperatures and windy days.
If you are unsure about which herbicide to choose or how to apply it, I suggest consulting with a local lawn care professional or your county extension office. They can provide specific recommendations based on your location and the specific broadleaf weeds you are trying to control.
What is the most effective herbicide for controlling weeds in St. Augustine grass?
When it comes to controlling weeds in St. Augustine grass, one of the most effective herbicides is Atrazine. Atrazine is a selective herbicide that targets broadleaf weeds while leaving the St. Augustine grass unharmed. It effectively controls a wide range of common weeds such as dandelion, clover, chickweed, and many others.
Atrazine is available in both liquid and granular form, allowing for easy application. It is important to follow the instructions provided by the manufacturer and apply the herbicide at the recommended rates to ensure optimal control of weeds.
However, it is worth noting that Atrazine is not suitable for all situations. It should not be used on newly seeded or recently sodded St. Augustine grass, as it may cause damage. Additionally, it is always recommended to consult with a professional or local extension office to determine the most appropriate herbicide for your specific weed problem and St. Augustine grass variety.
Which herbicide has been proven to be the safest for St. Augustine grass without causing damage?
When it comes to herbicides for St. Augustine grass, there are a few options that have been proven to be safe and effective without causing damage to the grass. One such herbicide is atrazine. Atrazine is commonly used to control weeds in St. Augustine grass and has been found to be safe when used according to the manufacturer's instructions. It effectively targets a wide range of broadleaf and grassy weeds while sparing the St. Augustine grass.
Another herbicide that is considered safe for St. Augustine grass is metolachlor. Metolachlor is a pre-emergent herbicide that prevents weed seeds from germinating, providing long-lasting control. It is important to follow the label instructions carefully to ensure optimal results and minimize any potential damage to the grass.
It is always recommended to consult with a local lawn care professional or your local agricultural extension office for specific herbicide recommendations for your region and St. Augustine grass variety. They can provide tailored advice based on your specific needs and conditions.
Which herbicide offers long-lasting control of weeds in St. Augustine grass?
One herbicide that offers long-lasting control of weeds in St. Augustine grass is Atrazine. Atrazine is a selective herbicide that effectively targets and controls broadleaf and grassy weeds in St. Augustine grass, while being safe for the grass itself. It provides residual control, meaning it remains active in the soil for an extended period, preventing weed regrowth. Atrazine is commonly used in warm-season turfgrass management, including St. Augustine grass, due to its effectiveness against common weeds like crabgrass, goosegrass, and broadleaf weeds. However, it is important to carefully follow the instructions and recommended application rates to ensure proper usage and to minimize any potential negative impact on the environment.