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Best Fungicide For Brown Patch In St Augustine (2024 Updated)

If you’re looking for a solution to the brown patch problem in your St. Augustine lawn, then a good fungicide is exactly what you need. Brown patch is a fungal disease that attacks the leaf blades of your St. Augustine grass and causes them to turn brown, leaving unsightly bald spots on your lawn. Fungicides are designed to prevent and combat fungal diseases such as brown patch, but before purchasing one, there are certain factors you need to consider.

Firstly, the type of fungicide you choose should be suitable for St. Augustine grass, as not all fungicides are created equal. Secondly, consider the severity of the brown patch problem in your lawn; if the problem is mild, then a less potent fungicide might be suitable, but if the problem is severe, a more powerful fungicide is required. Lastly, consider the cost of the product and your budget.

Are you tired of seeing your once-beautiful St. Augustine lawn being overrun by brown patches? Do you want to know the most effective ways to eradicate this problem? Have you been using fungicides that don't seem to be working as expected? If you answered yes to any of these questions, then this article is for you. Read on to discover the best options you have for effective fungicide treatment of brown patch in St. Augustine lawns.

10 Best Fungicide For Brown Patch In St Augustine

# Product Image Product Name Product Notes Check Price
1
It is ideal for controlling and preventing lawn fungus, covering an area of up to 5,000 sq. ft. quickly.
2
Scotts DiseaseEx is ideal for controlling and treating various lawn fungal diseases, including brown patch and powdery mildew.
3
The fungicide is ideal for controlling various plant diseases, such as brown patch, dollar spot, blights, powdery mildew, and rusts.
4
The product is ideal for controlling and preventing fungal diseases on lawns up to 10,000 sq ft.
5
Ideal for controlling fungal diseases on fruits, vegetables, ornamental plants, and trees.
6
Ideal fertilizer for any type of grass all year round, with micronutrients and iron to boost growth and health.
7
Ideal for repairing St. Augustine lawns with a ready-to-use mulch and fertilizer combination that covers up to 85 sq. ft.
8
This lawn fertilizer is ideal for promoting maximum green and growth during spring and summer for any type of grass.
9
The Trifecta Crop Control product is ideal for controlling and preventing various plant problems including pests, mold, and mildew.
10
It is ideal for controlling common diseases in organic gardening.
It is ideal for controlling and preventing lawn fungus, covering an area of up to 5,000 sq. ft. quickly.
Scotts DiseaseEx is ideal for controlling and treating various lawn fungal diseases, including brown patch and powdery mildew.
The fungicide is ideal for controlling various plant diseases, such as brown patch, dollar spot, blights, powdery mildew, and rusts.
The product is ideal for controlling and preventing fungal diseases on lawns up to 10,000 sq ft.
Ideal for controlling fungal diseases on fruits, vegetables, ornamental plants, and trees.
Ideal fertilizer for any type of grass all year round, with micronutrients and iron to boost growth and health.
Ideal for repairing St. Augustine lawns with a ready-to-use mulch and fertilizer combination that covers up to 85 sq. ft.
This lawn fertilizer is ideal for promoting maximum green and growth during spring and summer for any type of grass.
The Trifecta Crop Control product is ideal for controlling and preventing various plant problems including pests, mold, and mildew.
It is ideal for controlling common diseases in organic gardening.

1. Scotts Diseaseex Lawn Fungicide – Fungus Control, Fast Acting, Treats Up To 5,000 Sq. Ft., 10 Lb.

Scotts DiseaseEx Lawn Fungicide is the perfect solution to keep your lawn free from diseases that cause brown spots and mildew. This fast-acting formula prevents and controls 26 common lawn diseases, including Brown Patch, Red Thread, Powdery Mildew, and more. It is both curative and preventative, making it the ideal treatment for lawns that show early signs of disease and those that are yet to be affected.

This lawn fungus treatment works by controlling the spread of diseases before they cause damage to your lawn, ensuring that your yard remains healthy and vibrant. The systemic fungicide formula starts working within 24 hours of treatment and provides continuous protection for up to 4 weeks. Applying the fungicide is easy and convenient with a Scotts spreader, and a 10 lb. bag can cover up to 5,000 sq. ft. You can also use the treatment with confidence, as it is safe for people and pets to re-enter the treated area after application.

Pros

  • Prevents and controls 26 common lawn diseases
  • Curative and preventative treatment
  • Fast-acting formula starts working in 24 hours
  • Provides continuous protection for up to 4 weeks
  • Easy and convenient application with a Scotts spreader
  • Safe for people and pets to re-enter treated area after application

2. Lawn Fungus Control – Scotts Diseaseex

Protect your lawn from common diseases with this highly effective and fast-acting formula. This broad-spectrum disease prevention and control solution starts working in just 24 hours, providing quick results that last up to 4 weeks. With the ability to control 26 types of diseases, including Brown Patch, this product is an excellent choice for any lawn care enthusiast.

The systemic formula ensures that every inch of your lawn is protected from disease, working from the inside out to keep your grass healthy and vibrant. Whether you're dealing with a current outbreak or simply want to take preventative measures, this powerful solution is sure to get the job done.

Easy to apply and safe for use on all types of grass, this product is a must-have for anyone looking to keep their lawn in top condition. So why wait? Invest in the best and enjoy a lush, healthy lawn all year round!

Pros

  • Fast-acting formula starts working in just 24 hours
  • Broad-spectrum disease prevention and control
  • Controls Brown Patch and other common lawn diseases
  • Systemic formula ensures complete protection
  • Controls up to 26 types of diseases
  • Easy to apply
  • Safe for use on all types of grass

3. Atticus Gunner: Ultimate Fungicide For Lawn Diseases.

Gunner 14.3 MEC is a powerful fungicide that offers broad-spectrum disease prevention. It contains 14.3% propiconazole, the same active ingredient found in Banner Maxx, which is trusted by golf, landscape, and nursery professionals for protection against more than 20 plant diseases. With its advanced MEC formula, mixing Gunner 14.3 MEC is easy and results in a stable solution that won't separate or settle. Additionally, its MEC formulation is compatible with other fungicides, giving users the flexibility to customize their disease control solution.

This product is resistant to washing away with rain or irrigation, making it a dependable choice even when the weather is unpredictable. Gunner 14.3 MEC is also fast-acting and long-lasting, delivering up to 28 days of protection. With its low-odor formula, users won't have to worry about unpleasant smells lingering after application. It is important to note that Gunner 14.3 MEC is not available for sale in Alaska, Arizona, California, Hawaii, Maine, or Tennessee. Users should always read and follow label instructions, as not all products are registered for use in every state.

Pros

  • Contains 14.3% propiconazole for proven broad-spectrum disease prevention
  • Advanced MEC formula for easy mixing and greater product stability
  • Tank-mix compatible with many other fungicides for a customized disease control solution
  • Resistant to washing away with rain or irrigation for dependable protection
  • Fast-acting and long-lasting, delivering up to 28 days of protection
  • Low-odor formula for a more pleasant application experience

Cons

  • – Not available for sale in Alaska, Arizona, California, Hawaii, Maine, or Tennessee

4. The Andersons Prophesy Propiconazole Broad Spectrum Fungicide On Dg Pro, 25lbs (Up To 10,000 Sq Ft.)

This turf fungicide is a highly effective solution for controlling and suppressing broad-spectrum and systemic diseases. It is ideal for use in preventative disease control programs and is formulated with DG Pro technology, which ensures that there are more particles per square inch of the product. This leads to better control of the fungus and more uniform coverage of the turf. This easy-to-spread formula is also equipped with Dispersing Granual Technology, which allows for better delivery and control of the fungicide.

This fungicide is designed to provide long-lasting protection against various disease-causing organisms, including fungi and other pathogens. It is highly effective against a range of common turf diseases, including dollar spot, brown patch, and anthracnose. The product is also easy to apply, making it an excellent choice for both commercial and residential use.

The fungicide is compatible with a wide range of turfgrass species, including cool-season grasses such as bentgrass, fescues, and ryegrass, as well as warm-season varieties like Bermuda grass, St. Augustine grass, and Zoysia grass. It works systemically to protect the entire plant, from the roots to the leaves, providing complete coverage and control against disease-causing organisms.

Pros

  • Highly effective solution for controlling and suppressing broad-spectrum and systemic diseases in turf
  • Ideal for use in preventative disease control programs
  • Formulated with DG Pro technology for better control and more uniform coverage of the turf
  • Equipped with Dispersing Granual Technology for better delivery and control of the fungicide
  • Provides long-lasting protection against various disease-causing organisms
  • Easy to apply, making it an excellent choice for both commercial and residential use
  • Compatible with a wide range of turfgrass species

5. Bonide 811 Copper 4e Fungicide 16oz (473ml)

Captain Jack's Liquid Copper Fungicide Concentrate is a highly effective solution to control and prevent a wide range of plant diseases in your garden. This fungicide is approved for organic gardening and is suitable for the production of organic produce. It can even be used up until the day of harvest, making it a safe and reliable choice for your garden.

This copper fungicide is effective in the prevention and control of common garden diseases such as blight, black spot, powdery mildew, peach leaf curl, and more. It can be applied to fruits, vegetables, ornamentals, and other plants in your lawn and garden for complete and long-lasting disease control.

This product arrives ready-to-mix, making it easy to use. Simply mix with water according to package directions and apply thoroughly to the affected plants. For full use instructions, please see the product label.

Pros

  • Approved for organic gardening and suitable for the production of organic produce
  • Can be used up until the day of harvest
  • Effective in controlling and preventing a wide range of plant diseases
  • Can be applied to fruits, vegetables, ornamentals, and other plants
  • Conveniently arrives ready-to-mix

6. Supercharge Your Lawn With Simple Solutions

Transform your lawn into a lush green paradise with the Liquid Iron, Nitrogen and Micronutrient Blend: Lawn Energizer Booster. This commercial grade booster treatment is specifically designed to provide essential nutrients needed to intensify the green of your lawn, making it the envy of the neighborhood. The ready-to-use hose end sprayer covers an area of 3,200 SQ. FT, saving you time and effort.

The Lawn Energizer Booster is a high-quality 6-0-0 nitrogen, iron, and micronutrient blend that is suitable for all grass types, including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Florida Palmetto, Bahia, Fescue, Ryegrass, and Kentucky Bluegrass. Whether you have a residential or commercial property, this booster treatment will keep your lawn looking its best.

Produced in the United States, the Lawn Energizer Booster is manufactured by a family-owned business with 25 years of experience in the commercial professional turf industry. You can trust that this booster treatment is made with the highest quality ingredients and is safe for your lawn, family, and pets.

Pros

  • Covers an area of 3,200 SQ. FT with ready-to-use hose end sprayer, saving time and effort
  • Suitable for all grass types, making it versatile for residential and commercial properties
  • High-quality 6-0-0 nitrogen, iron, and micronutrient blend intensifies the green of your lawn
  • Produced in the United States by a family-owned business with 25 years of experience in the commercial professional turf industry, ensuring quality and safety

7. St. Augustine Lawn Repair In A Bag.

Scotts EZ Patch Lawn Repair is a combination of mulch and fertilizer that repairs St. Augustinegrass quickly and efficiently. The product is designed to repair the grass 60% faster than the untreated control, and the results can be seen within 15 days of application (results may vary). The mulch used in this product absorbs 6 times its weight in water and expands to surround the seed in a moist protective layer. This layer helps the seed to grow faster and healthier. The fertilizer is formulated with exclusive controlled release technology that feeds the grass to promote growth and establishment of St. Augustinegrass.

This ready-to-use lawn repair mix is perfect for covering up to 85 sq. ft. in one go. It is easy to use and can be applied by anyone. The product does not contain any grass seed, so you don't have to worry about any foreign species growing in your lawn. This product is specially formulated to work with St. Augustinegrass and provides the necessary nutrients to promote the growth of the grass.

The Scotts EZ Patch Lawn Repair for St. Augustine Lawns is a great solution for repairing damaged lawns. It is easy to use and provides quick and efficient results. The product is specially designed to work with St. Augustinegrass and contains a combination of mulch and fertilizer that promotes healthy growth and establishment of the grass.

Pros

  • Combination of mulch and fertilizer promotes healthy growth of St. Augustinegrass
  • Results can be seen within 15 days of application
  • Mulch absorbs 6 times its weight in water to provide a moist protective layer for the seed
  • Fertilizer is formulated with exclusive controlled release technology to feed the grass
  • Ready-to-use lawn repair mix covers up to 85 sq. ft. in one go

Cons

  • – Does not contain grass seed

8. Green Maxx Lawn Fertilizer For Full Growth

Achieve a dense and attractive lawn with the 28-0-0 Liquid Lawn Food Nutritional Supplement. This high nitrogen formula contains 28% nitrogen, a major component of chlorophyll that aids in the formation of green coloring in plants. Nitrogen encourages vigorous growth for a thicker and greener lawn. The addition of quick release and slow release nitrogen fertilizer provides quick nutrient absorption and keeps your lawn fed in between applications. The 70% quick release nitrogen ensures that your lawn receives the nutrients it needs right away, while the 30% slow release nitrogen ensures continuous feeding. The high quality feed grade compounds nourish your lawn with liquid nutrients, making it easy to apply with the ready-to-use hose end sprayer. The liquid lawn food can be used on all grass types, including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Florida Palmetto, Bahia, Fescue, Ryegrass, and Kentucky Bluegrass. Each bottle covers up to 3,200 square feet, making it an efficient and effective solution for maintaining lawn vigor or treating lawns deficient in nitrogen.

The 28-0-0 Lawn Food is an essential macronutrient that encourages greening and vertical/lateral growth for a thicker and greener lawn. This high nitrogen formula is perfect for correcting nitrogen deficiencies in the soil, darkening the green of your lawn, and boosting vertical and lateral growth. Use it regularly to maintain lawn quality and color.

Pros

  • Contains high nitrogen formula for a thicker and greener lawn
  • Provides quick nutrient absorption with 70% quick release nitrogen
  • Ensures continuous feeding with 30% slow release nitrogen
  • Easy to apply with ready-to-use hose end sprayer
  • Can be used on all grass types
  • Covers up to 3,200 square feet
  • Essential macronutrient for maintaining lawn vigor, color, and quality
  • Perfect for correcting nitrogen deficiencies in the soil
  • Boosts vertical and lateral growth for a thicker and greener lawn

Cons

  • – May not be effective for treating other nutrient deficiencies besides nitrogen
  • – May require frequent applications for optimal results
  • – May not be suitable for use in areas with heavy rainfall or high humidity

9. Trifecta All-In-One Plant Savior – Gallon

Crop Control is a natural solution that can help protect and cure Powdery Mildew, Spider Mites, Russet Mites, Broad Mites, Botrytis, Grey Mold, Aphids, as well as fungal and parasitic species on plants. It is the best choice for those looking for an effective solution to mildew, mold, and fungus problems.

The super concentrated formula of Crop Control makes it simple and easy to use. Every 1/2 ounce of Trifecta Crop Control can make one gallon of ready-to-use spray. All you need to do is mix it with water and spray it on your plants to prevent and cure mildew, mites, and mold. It can be used up to one week before harvest.

Crop Control is safe for use on most plants, including fruits, vegetables, herbs, spices, roses, flowers, trees, shrubs, houseplants, succulents, and ornamentals. Before applying the spray on the entire plant, it is recommended to test spray a few leaves.

This product has proven results and is recommended by farmers. It contains a unique blend of food-grade essential oils, including garlic, thyme, clove, and peppermint oils that are broken down into nano-sized particles for maximum coverage. Crop Control is an all-natural and pet-friendly product, so you can feel good about what you are putting on your plants and the planet.

If you are not satisfied with the results, you are protected by Amazon's money-back guarantee (all terms apply).

In summary, Trifecta Crop Control is a super-concentrated formula that is easy to use and safe for most plants. It is an all-natural and pet-friendly product that can help protect your plants from mildew, mold, and fungus. With this product, you can save time and money and feel confident about what you are putting on your plants.

Pros

  • Effective against Powdery Mildew, Spider Mites, Russet Mites, Broad Mites, Botrytis, Grey Mold, Aphids, as well as fungal and parasitic species on plants
  • Simple and easy to use
  • Super concentrated formula
  • Safe for use on most plants
  • All-natural and pet-friendly product
  • Proven results and recommended by farmers
  • Contains a unique blend of food-grade essential oils broken down into nano-sized particles for maximum coverage
  • Can be used up to one week before harvest

10. Organic Fungicide Spray – Captain Jack's!

Protect your garden from harmful plant diseases with Captain Jack's ready-to-use Liquid Copper Fungicide. This organic fungicide is suitable for use in the production of organic produce and can even be applied up to the day of harvest, making it a reliable solution for gardeners who want to keep their crops healthy and safe.

Captain Jack's Liquid Copper Fungicide is effective in preventing and controlling a wide range of plant diseases, including blight, black spot, powdery mildew, and peach leaf curl. It can be used on fruits, vegetables, ornamentals, and other plants in your lawn and garden to ensure complete and long-lasting disease control.

This product comes in a convenient trigger spray bottle, ready to use. To apply, simply shake the bottle well and thoroughly spray the affected plants and foliage. For detailed usage instructions, please refer to the product label.

Pros

  • Suitable for organic gardening and production of organic produce
  • Effective in preventing and controlling a wide range of plant diseases
  • Can be applied up to the day of harvest
  • Convenient and easy-to-use trigger spray bottle

Best Fungicide For Brown Patch In St Augustine FAQs

Are there any organic or natural fungicides that can be used to treat brown patch in St. Augustine grass?

Yes, there are several organic or natural fungicides available in the market that can be used to treat brown patch in St. Augustine grass. Brown patch is a fungal disease that affects the grass during humid and hot weather conditions. Organic or natural fungicides are a safer and more environmentally friendly option for treating such diseases as they do not contain harmful chemicals. Some of the most effective organic or natural fungicides for brown patch in St. Augustine grass include neem oil, potassium bicarbonate, and copper fungicide. Neem oil is an effective fungicide that can prevent the growth of fungal spores on the grass. Potassium bicarbonate is another natural fungicide that can be used to control the spread of brown patch in St. Augustine grass. Copper fungicide is also a popular organic fungicide that can be used to treat brown patch. However, it's essential to follow the instructions provided on the product label to ensure safe and effective use.

Can fungicides be used as a preventative measure for brown patch in St. Augustine grass?

Yes, fungicides can be used as a preventative measure for brown patch in St. Augustine grass. Brown patch is a common disease that affects many types of turfgrass, including St. Augustine grass. It is caused by a fungus known as Rhizoctonia solani. Fungicides are effective in preventing brown patch from developing by killing the fungus before it can cause damage to the grass.

However, it is important to note that fungicides should not be the only method used to prevent brown patch. Good cultural practices, such as proper watering and fertilization, can also help to prevent the disease from occurring. Additionally, it is important to identify the type of fungus causing the disease in order to choose the appropriate fungicide for treatment.

It is recommended to consult with a lawn care professional or extension agent for guidance on the best preventative measures for brown patch in St. Augustine grass.

How often should I apply fungicide to control brown patch in St. Augustine grass?

To control brown patch in St. Augustine grass, it is essential to apply fungicide at the right time and frequency. Typically, brown patch is prevalent in the hot and humid months of summer and spring, so it's crucial to start applying fungicide before the disease appears.

It's recommended to apply a preventive fungicide treatment every four to six weeks during the peak growing season. However, if you observe any signs of brown patch disease, such as yellowing or browning of the grass, thinning of the turf, or circular patches, you should increase the frequency of fungicide application.

In severe cases, it may be necessary to apply fungicide every two weeks until the disease is under control. Also, avoid watering the grass in the late evening or at night, as this will promote fungal growth. Instead, water the lawn early in the morning to give it time to dry out during the day.

To summarize, applying fungicide every four to six weeks as a preventive measure and increasing the frequency when needed is the best way to control brown patch in St. Augustine grass.

What are the potential risks or side effects of using fungicides to control brown patch in St. Augustine grass?

Fungicides are commonly used to control brown patch in St. Augustine grass. However, there are potential risks and side effects associated with their use. One of the main concerns is the negative impact fungicides can have on the environment. They can contaminate water sources, harm beneficial insects, and have long-lasting effects on the ecosystem. Additionally, overuse of fungicides can lead to the development of resistant strains of fungi, making it more difficult to control the disease in the future.

In terms of human health, exposure to fungicides can lead to respiratory problems, skin irritation, and other health issues. It's important to follow all safety precautions when using fungicides, including wearing protective gear and following application instructions carefully.

Another potential risk of using fungicides is the impact on non-target plants. Fungicides can harm or kill beneficial plants, leading to a decrease in biodiversity and potential ecological imbalances.

Overall, while fungicides can be effective in controlling brown patch in St. Augustine grass, it's important to weigh the potential risks and side effects before using them. Consider alternative methods such as improving soil health and using cultural practices to prevent the disease before resorting to fungicides.

What is the most effective fungicide for treating brown patch in St. Augustine grass?

Brown patch is a common disease that affects St. Augustine grass, a popular turfgrass species in the southern United States. The disease is caused by a fungus called Rhizoctonia solani, which thrives in warm and humid conditions. In order to treat brown patch effectively, it's important to use a fungicide that is specifically designed to target this fungus.

One of the most effective fungicides for treating brown patch in St. Augustine grass is azoxystrobin. This fungicide works by inhibiting the growth of the fungus and preventing it from spreading throughout the grass. Azoxystrobin is available in both liquid and granular formulations, and can be applied using a sprayer or a spreader.

Other fungicides that are effective against brown patch include propiconazole, myclobutanil, and tebuconazole. However, it's important to choose a fungicide that is labeled for use on St. Augustine grass, as some products may be too harsh and cause damage to the turf.

In addition to fungicide treatments, it's important to practice good cultural practices such as proper watering and fertilization, as well as removing thatch buildup to reduce the risk of brown patch. By combining these strategies, you can effectively treat and prevent brown patch from damaging your St. Augustine grass.

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