If you have St. Augustine grass, you know that it can be hard to keep it looking lush and green. Weeds can quickly take over and ruin the appearance of your lawn. That's where herbicides come in. But with so many options on the market, it can be overwhelming to choose the best one for your St. Augustine grass.
Here are five key points to consider when looking for the best herbicide for St. Augustine grass:
1. Selective herbicides: Make sure the herbicide you choose is selective, meaning it only targets the weeds and not your grass. This is important because St. Augustine grass is sensitive to many herbicides and can easily be damaged or killed if the wrong one is used.
2. Pre-emergent vs. post-emergent: There are two types of herbicides: pre-emergent and post-emergent. Pre-emergent herbicides prevent weeds from germinating, while post-emergent herbicides kill weeds that have already sprouted. Depending on your lawn's needs, you may need to use both types.
3. Active ingredients: Pay attention to the active ingredients in the herbicide. Some common ones for St. Augustine grass include atrazine, 2,4-D, and dicamba. Research which ones are most effective for the weeds you're trying to eliminate.
4. Application method: Herbicides can be applied in different ways, such as sprays, granules, or liquids. Consider which method will be easiest and most effective for your lawn.
5. Safety: Always read the label carefully and follow the instructions for safe use. Some herbicides can be harmful to pets and children, so make sure to keep them away from treated areas.
By considering these key points, you'll be able to find the best herbicide for your St. Augustine grass and keep your lawn looking healthy and weed-free.
10 Best Herbicide For St Augustine Grass
| # | Product Image | Product Name | Check Price |
|---|---|---|---|
|
1
|
 |
|
|
|
2
|
 |
|
|
|
3
|
 |
|
|
|
4
|
 |
|
|
|
5
|
 |
|
|
|
6
|
 |
|
|
|
7
|
 |
|
|
|
8
|
 |
|
|
|
9
|
 |
|
|
|
10
|
 |
|
1. Southern Ag Atrazine St. Augustine Grass Weed Killer, 1 Gallon
Southern Ag Atrazine St. Augustine Grass Weed Killer is a highly effective solution for controlling weeds in lawns and gardens. This product is specifically designed to kill a wide range of broadleaf weeds, making it an ideal choice for anyone looking to maintain a healthy and vibrant lawn.
One of the key features of this weed killer is its ability to work on a variety of different grass types. In addition to St. Augustine grass, it can also be used on centipede grass, providing a versatile solution for homeowners and landscapers alike.
Another benefit of Southern Ag Atrazine St. Augustine Grass Weed Killer is its ability to provide suppression of crabgrass. This is a common problem for many homeowners, and can be difficult to control without the right product. With this weed killer, however, crabgrass can be effectively controlled, helping to keep lawns looking their best.
This product is also effective at controlling both emerged weeds and weeds from seed. This means that it can be used to prevent new weeds from sprouting, as well as to eliminate existing weeds in your lawn or garden.
Overall, Southern Ag Atrazine St. Augustine Grass Weed Killer is a reliable and effective solution for anyone looking to maintain a healthy and beautiful lawn. Whether you are dealing with broadleaf weeds, crabgrass, or other types of unwanted growth, this product can help you achieve a clean and well-manicured lawn that you can be proud of.
2. Southern Ag 006130 Atrazine St. Augustine Weed Killer 32oz Specialty Herbicide, Light Tan
Southern Ag 006130 Atrazine St. Augustine Weed Killer is a specialty herbicide that effectively controls weeds in St. Augustine and Centipede grasses. This product comes in a 32oz container and is capable of treating an area of 3,720 sq ft.
St. Augustine and Centipede grasses are popular choices for lawns in the southern United States, but they are susceptible to weed infestations. Common weeds that invade these types of grasses include crabgrass, clover, and dandelions. These weeds can be unsightly and can also damage the grass, leading to patchy and unhealthy lawns.
Southern Ag 006130 Atrazine St. Augustine Weed Killer is specifically designed to address these weed problems. It contains the active ingredient Atrazine, which is a powerful herbicide that targets broadleaf weeds while leaving grass unharmed. This makes it an ideal choice for homeowners and landscapers who want to maintain healthy and attractive lawns without worrying about damaging the grass.
One quart of Southern Ag 006130 Atrazine St. Augustine Weed Killer can treat an area of 3,720 sq ft, making it a cost-effective solution for weed control. The product comes in a lightweight, 1.021-kilogram container with dimensions of 5.842 L x 19.177 H x 12.954 W (centimeters), making it easy to handle and store.
To use Southern Ag 006130 Atrazine St. Augustine Weed Killer, simply mix the recommended amount of product with water and apply it to the affected area using a sprayer. The product should be applied evenly to ensure complete coverage of the weeds. It is important to follow the instructions carefully to ensure effective and safe use of the product.
In summary, Southern Ag 006130 Atrazine St. Augustine Weed Killer is a highly effective specialty herbicide that targets broadleaf weeds in St. Augustine and Centipede grasses while leaving the grass unharmed. It is easy to use, cost-effective, and comes in a lightweight container that is easy to store. With this product, homeowners and landscapers can maintain healthy and attractive lawns free from unsightly and damaging weeds.
3. Hi-Yield Atrazine Weed Killer
Hi-Yield Atrazine Weed Killer is a highly effective herbicide that effectively controls and suppresses the growth of various weeds in St. Augustine and Centipede grass. With a potent concentration of 4.00% Atrazine, this weed killer is capable of tackling a wide range of invasive weeds, such as Annual Bluegrass, Chickweed (Common and Mouseear), Henbit, Moneywort, Pennywort (Dollarweed), and Spurge.
Designed to provide long-lasting results, Hi-Yield Atrazine Weed Killer works by targeting the root system of weeds, thereby preventing them from regrowing and spreading. Once applied, this powerful herbicide is quickly absorbed by the roots, effectively killing weeds from the inside out. This makes it an ideal solution for those who are looking for a quick and easy way to get rid of unwanted weeds in their lawn or garden.
One of the key benefits of Hi-Yield Atrazine Weed Killer is its ability to selectively target weeds, while leaving the surrounding grass unharmed. This makes it an ideal solution for those who want to maintain the health and appearance of their lawn, while effectively controlling weed growth. Whether you're dealing with stubborn Annual Bluegrass, Chickweed, or Spurge, this weed killer is capable of delivering impressive results.
To use Hi-Yield Atrazine Weed Killer, simply apply the herbicide to the affected area using a sprayer or watering can. For best results, it is recommended to apply the herbicide during periods of active weed growth, such as in the spring or summer. Depending on the severity of the weed infestation, multiple applications may be necessary to fully control and suppress weed growth.
In conclusion, Hi-Yield Atrazine Weed Killer is a highly effective herbicide that delivers fast and long-lasting results. With its potent concentration of Atrazine and selective weed control abilities, it is an ideal solution for those who want to maintain a healthy and beautiful lawn, while effectively controlling weed growth. Whether you're dealing with Annual Bluegrass, Chickweed, or Spurge, this weed killer is capable of delivering impressive results, making it a must-have for any lawn or garden maintenance arsenal.
4. Spectracide Weed Stop Concentrate For St. Augustine & Centipede Lawns – 32oz, 6-Pack
Spectracide Weed Stop For Lawns For St. Augustine & Centipede Lawns Concentrate is a highly effective solution for controlling weeds in lawns. This product is specially formulated to kill weeds without harming the lawn when used as directed. It controls both emerged weeds and those that grow from seeds, making it a reliable solution for maintaining a healthy and weed-free lawn.
The key ingredient in this product is Atrazine, which is a powerful herbicide that targets weeds in St. Augustinegrass varieties and centipedegrass. This ingredient is highly effective in controlling tough weeds, including dollarweed, sandspur, and Florida betony. It works by inhibiting the growth of the weeds, ultimately leading to their demise.
Spectracide Weed Stop For Lawns For St. Augustine & Centipede Lawns Concentrate is available in a convenient hose-end concentrate that makes it easy to apply. The QuickFlipTM hose-end sprayer activates the spray at the flip of a switch, allowing for precise and efficient application. This makes it an ideal solution for homeowners who want to take control of their lawn care without the need for professional assistance.
Using Spectracide Weed Stop For Lawns For St. Augustine & Centipede Lawns Concentrate is simple. First, ensure that the lawn is dry before application. Then, connect the hose-end sprayer to the garden hose and turn on the water. Next, turn the dial to the desired setting and spray the lawn evenly, making sure to cover all areas where weeds are present. It is important to follow the instructions on the label carefully to ensure that the product is used safely and effectively.
Overall, Spectracide Weed Stop For Lawns For St. Augustine & Centipede Lawns Concentrate is an excellent solution for controlling weeds in lawns. It is highly effective, easy to use, and won’t harm the lawn when used as directed. With this product, homeowners can take control of their lawn care and enjoy a beautiful, weed-free lawn all year round.
5. Blindside Herbicide Wdg 8 Oz. Post Emergent Broadleaf Weed Killer
Blindside Herbicide WDG 8 oz. Post Emergent Broadleaf Weed Killer is a powerful broadleaf weed killer that is designed to eliminate various types of weeds, including clover, dandelion, chickweed, and other tough weeds from turfgrass. The product comes in an 8 oz bottle that is easy to use and is perfect for small-scale applications.
However, it is important to note that the Blindside Herbicide WDG 8 oz. Post Emergent Broadleaf Weed Killer is not available for sale in AK, AZ, CA, CO, CT, DE, IA, ID, MA, ME, MI, MN, MT, ND, NE, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SD, UT, VT, WA, WI, WY. Therefore, it is important to check if the product is available in your area before purchasing it.
The Blindside Herbicide WDG 8 oz. Post Emergent Broadleaf Weed Killer contains two active ingredients – Metsulfuron and Sulfentrazone – that work together to provide effective control of a wide range of broadleaf weeds. Metsulfuron is a systemic herbicide that is absorbed by the weeds and translocated throughout the plant, killing it from the root up. Sulfentrazone, on the other hand, is a contact herbicide that kills the weeds on contact by disrupting their cell membranes.
The Blindside Herbicide WDG 8 oz. Post Emergent Broadleaf Weed Killer is registered with the Environmental Protection Agency (EPA) under registration number 279-3411. This means that the product has been extensively tested and found to be effective and safe for use when used according to the label instructions. It is important to follow the application instructions carefully to ensure the best results.
The Blindside Herbicide WDG 8 oz. Post Emergent Broadleaf Weed Killer is suitable for use on both warm-season and cool-season grasses. The recommended application rate for cool-season grass is 0.075 – 0.15 oz. per 1,000 sq. ft. (3.25 – 6.5 oz. per acre), while for warm-season grasses, the recommended application rate is 0.15 – 0.23 oz. per 1,000 sq. ft. It is important to measure the area to be treated correctly to avoid over or under-application.
In conclusion, the Blindside Herbicide WDG 8 oz. Post Emergent Broadleaf Weed Killer is a highly effective and safe broadleaf weed killer that is perfect for small-scale applications. However, it is important to check if the product is available in your area before purchasing it and to follow the application instructions carefully to ensure the best results.
6. Hi-Yield (33430) Atrazine Weed Killer (32 Oz)
Hi-Yield (33430) Atrazine Weed Killer (32 oz) is a highly effective selective herbicide designed to control a wide range of weeds, including Henbit, Clover, Chickweed, and more. This liquid concentrate weed killer is ideal for use on St. Augustine and Centipedegrass lawns.
This 32 oz bottle of herbicide can cover up to 3,720 sq. feet of lawn, making it an extremely cost-effective solution for weed control. The product is easy to use and can be applied during both dormant and growing seasons, though it is recommended to apply it in early spring for best results.
The application process for Hi-Yield (33430) Atrazine Weed Killer varies depending on the dimensions of your lawn and the type of grass you have. It is essential to read the label carefully and follow the application instructions to ensure the best results.
This product is a powerful weed killer and should be used with caution. It is recommended to wear protective clothing, gloves, and eyewear when applying the product. It is also important to keep children and pets away from treated areas until the product has fully dried.
Overall, Hi-Yield (33430) Atrazine Weed Killer (32 oz) is an excellent choice for homeowners looking for an effective solution to control weeds in their lawn. It is a high-quality product that delivers outstanding results and is easy to use. If you want a lush, healthy lawn, this weed killer is a must-have.
7. Scotts Diseaseex Lawn Fungicide – Fungus Control, Fast Acting, Treats Up To 5,000 Sq. Ft., 10 Lb.
Scotts DiseaseEx Lawn Fungicide is a highly effective solution for those looking to maintain a beautiful and healthy lawn. This fast-acting formula is designed to stop and prevent 26 common lawn diseases, ensuring that your yard remains free of unsightly blemishes and discolorations.
One of the key benefits of Scotts DiseaseEx Lawn Fungicide is its ability to both prevent and control lawn diseases. When used as a preventative measure, this treatment can effectively control brown spots and rings before they have a chance to appear. And when applied to lawns that are already showing signs of disease, this product can help to cure 26 different types of lawn diseases, including Brown Patch, Stem and Stripe Rust, Red Thread, Powdery Mildew, Necrotic Ring Spot, Summer Patch, Yellow Patch, and more.
Another major advantage of Scotts DiseaseEx Lawn Fungicide is its fast-acting formula. This product starts working within just 24 hours of treatment, and its systemic fungicide formula can control common broad spectrum diseases for up to four weeks. This means that you can enjoy a healthier, more beautiful lawn in no time at all.
To use Scotts DiseaseEx Lawn Fungicide, simply apply it with a Scotts spreader at a uniform coverage. A 10 lb. bag of this product can treat up to 5,000 sq. ft. of lawn, making it a highly cost-effective solution for those looking to maintain a beautiful yard. And best of all, people and pets may re-enter treated areas after application, so you can enjoy your lawn with peace of mind.
Overall, Scotts DiseaseEx Lawn Fungicide is the perfect solution for those looking to prevent and control lawn diseases. Its fast-acting formula, broad spectrum disease prevention and control, and ease of use make it a highly effective and convenient solution for maintaining a beautiful and healthy lawn all year round.
8. Seedranch St. Augustine Lawn 24-2-11 Fertilizer – 50 Lbs.
SeedRanch has introduced a high-quality fertilizer for St. Augustine lawns that provides essential nutrients for the growth and maintenance of your lawn. The SeedRanch St. Augustine Lawn 24-2-11 Fertilizer is designed to promote healthy root development, improve color and texture, and enhance overall lawn health.
This fertilizer contains 6% iron, which is essential for greening up your lawn and giving it a vibrant, healthy look. The high nitrogen content (24%) ensures that your lawn receives the nutrients it needs for vigorous growth, while the phosphorus (2%) and potassium (11%) help to strengthen the roots and prevent disease.
With a coverage of up to 12,000 square feet, this fertilizer is perfect for large lawns and will keep your St. Augustine grass looking lush and healthy all season long. Simply apply the recommended amount of fertilizer to your lawn according to the instructions on the bag, and enjoy a healthy, vibrant lawn that will be the envy of your neighbors.
In addition to providing essential nutrients for your lawn, the SeedRanch St. Augustine Lawn 24-2-11 Fertilizer is also easy to use. The granular form of the fertilizer ensures even distribution, and the bag comes with a convenient handle for easy transportation and storage.
Whether you're a professional landscaper or a homeowner looking to improve the health and appearance of your St. Augustine lawn, the SeedRanch St. Augustine Lawn 24-2-11 Fertilizer is an excellent choice. With its high-quality ingredients and easy-to-use formula, this fertilizer will help you achieve a beautiful, healthy lawn that you can be proud of.
9. Scotts Ez Patch Lawn Repair Fixes St. Augustine Lawns Without Grass Seeds. It Includes Mulch, Fertilizer, And Covers Up To 85 Sq. Ft.
Scotts EZ Patch Lawn Repair for St. Augustine Lawns is a revolutionary product that has been specifically designed to repair St. Augustinegrass quickly and efficiently. The product contains a combination of mulch and fertilizer that has been proven to repair St. Augustinegrass 60% faster than untreated lawns. The results of the repair process can be seen within 15 days of application, though results may vary.
The mulch in the product is designed to absorb up to six times its weight in water. This allows it to expand and surround the seed in a moist protective layer. This helps to ensure that the seed remains hydrated and protected during the repair process. The mulch also helps to retain moisture in the soil, which is essential for promoting the growth and establishment of St. Augustinegrass.
The fertilizer in the product is based on exclusive controlled release technology. This means that the fertilizer releases nutrients slowly over time, which helps to promote the gradual growth and establishment of St. Augustinegrass. The fertilizer is also designed to provide the grass with the essential nutrients it needs to thrive, including nitrogen, phosphorus, and potassium.
The ready-to-use lawn repair mix is easy to apply and covers up to 85 sq. ft. This makes it ideal for repairing small patches of damaged or dead grass. The product is also designed to be easy to use, with no need for additional grass seeds.
One of the key benefits of Scotts EZ Patch Lawn Repair for St. Augustine Lawns is that it does not contain grass seed. This means that it is ideal for repairing St. Augustinegrass without the risk of introducing foreign grass species into the lawn. This is essential for maintaining the health and appearance of the lawn, as foreign grasses can compete with St. Augustinegrass for resources and can ultimately lead to a decline in the overall health of the lawn.
Overall, Scotts EZ Patch Lawn Repair for St. Augustine Lawns is an essential tool for anyone looking to repair and maintain their St. Augustinegrass lawn. Its combination of mulch and fertilizer provides a fast and effective solution to repairing damaged or dead grass, while its easy-to-use design makes it suitable for even the most inexperienced gardeners. Whether you're looking to repair small patches or large areas of damage, Scotts EZ Patch Lawn Repair for St. Augustine Lawns is the perfect solution.
10. Bayer Celsius Wg 10 Oz
Bayer Celsius WG 10 oz is a highly effective herbicide that can help control stubborn weeds and grasses in your lawn or garden. This product is formulated with a wettable granule that is easy to use and provides excellent performance even on hard-to-control weeds.
One of the best features of Bayer Celsius WG 10 oz is its convenient application window, which does not have high temperature limitations. This means that you can apply the herbicide at any time of the day or night, without having to worry about the weather conditions.
The wettable granule formulation of Bayer Celsius WG 10 oz makes it easy to mix and apply, ensuring even coverage across your lawn or garden. To use the product, simply mix it with water according to the instructions on the label, and apply it using a sprayer or other application method.
Bayer Celsius WG 10 oz is highly effective against a wide range of weeds and grasses, including American burnweed, chamberbitter, common purslane, dollarweed, Florida betony, Florida pusley, lawn burweed, Lespedeza, prostrate spurge, spotted spurge, Virginia buttonweed, Bull paspalum, carpetgrass, Dallis grass (suppression), and doveweed. This makes it a versatile solution for controlling weeds and grasses in a variety of settings.
Overall, Bayer Celsius WG 10 oz is an excellent choice for anyone looking to control weeds and grasses in their lawn or garden. Its convenient application window, easy-to-use formulation, and excellent performance make it a top choice among homeowners and professional landscapers alike. If you're looking for a reliable and effective herbicide, consider giving Bayer Celsius WG 10 oz a try.
Best Herbicide For St Augustine Grass FAQs
Are there any herbicides that are specifically designed for St. Augustine grass?
Yes, there are several herbicides that are specifically designed for St. Augustine grass. These herbicides are formulated to effectively target and control the growth of weeds that commonly invade St. Augustine grass lawns without harming the grass itself. Some of the commonly used herbicides for St. Augustine grass include Atrazine, Imazaquin, and Sulfentrazone. Atrazine is a pre-emergent herbicide that helps prevent the growth of many common weeds in St. Augustine grass, while Imazaquin is a post-emergent herbicide that helps control broadleaf weeds. Sulfentrazone is another post-emergent herbicide that is effective against both broadleaf and grassy weeds. It is important to read and follow the label instructions carefully to ensure safe and effective use of any herbicide on St. Augustine grass. Additionally, it is recommended that homeowners consult with a professional lawn care company for the proper application of herbicides and other lawn care products.
Can I use a generic herbicide on St. Augustine grass or do I need a specific brand?
It is recommended to use a herbicide labeled specifically for St. Augustine grass as generic herbicides may not be effective against its specific growth pattern and characteristics. St. Augustine grass is a warm-season grass that is susceptible to damage from certain herbicides, especially during hot and dry weather. Using a generic herbicide may cause harm to the grass, leading to discoloration, stunted growth, and even death. It is crucial to follow the manufacturer's instructions carefully and apply the herbicide at the recommended time and rate to avoid any potential damage to the grass. Additionally, it is essential to ensure that the herbicide is safe for use around other plants and animals in the area. Consult with a professional or read the labels carefully before using any herbicide on St. Augustine grass.
How often should I apply herbicides to my St. Augustine grass lawn to keep weeds at bay?
The frequency of applying herbicides to a St. Augustine grass lawn depends on various factors, such as the type and severity of weeds, weather conditions, and the type of herbicide used. Generally, it is recommended to apply herbicides pre-emergently, before weeds germinate, to prevent weed growth. Post-emergent herbicides can be applied as needed to target existing weeds. However, excessive use of herbicides can harm the lawn and the environment, so it is essential to follow the label instructions and apply only when necessary. It is also recommended to practice proper lawn maintenance, such as regular mowing, watering, and fertilizing, to promote healthy grass growth and minimize weed growth. Consulting with a lawn care professional can provide more specific recommendations for your lawn's needs.
What is the most effective herbicide for controlling weeds in St. Augustine grass?
The most effective herbicide for controlling weeds in St. Augustine grass is a selective herbicide that targets broadleaf weeds while leaving the grass unharmed. Common herbicides for this purpose include atrazine, 2,4-D, dicamba, and MCPP. However, it is essential to read and follow the label instructions carefully to prevent damage to the grass or other unintended consequences.
Atrazine is a popular herbicide that works well against broadleaf weeds and is safe for St. Augustine grass when used according to instructions. 2,4-D is another herbicide that can be effective against broadleaf weeds, but it may require multiple applications to achieve satisfactory results. Dicamba and MCPP are also commonly used herbicides that can control broadleaf weeds in St. Augustine grass.
It is important to note that herbicide use should be part of an integrated approach to weed control that includes proper mowing, watering, and fertilizing practices. Additionally, it is recommended to identify the specific weed species present and choose a herbicide that targets those weeds specifically.
Which herbicide is safest to use on St. Augustine grass without causing damage?
The safest herbicide to use on St. Augustine grass without causing damage is one that is specifically labeled for use on St. Augustine grass and is applied according to the manufacturer's instructions. Some examples of herbicides that are safe for use on St. Augustine grass include 2,4-D, dicamba, and atrazine. However, it is important to note that even safe herbicides can cause damage if not applied correctly, so it is important to follow all instructions carefully.
Before using any herbicide on St. Augustine grass, it is important to identify the specific weed species you are trying to control and choose a herbicide that is effective against that particular weed. Additionally, it is important to avoid applying herbicides during periods of drought or stress, as this can increase the risk of damage to the grass. Overall, using a safe and effective herbicide in combination with proper application techniques can help to maintain a healthy and beautiful St. Augustine lawn.