What Are Signs Of Brown Patch Lawn Disease
If you see spotting on your leaf bladeswhich can eventually bleed together to turn the entire leaf brownsuspect Brown Patch is invading your lawn.
More obvious signs to identify brown patch lawn fungus are circular areas of brown and dead grass surrounded by a narrow, dark ring. Patches are typically irregular and can be quite large, as this disease can spread fast.
This brown spotting can take on different appearances depending on the characteristics of the grass it infects. The following are signs of brown patch based on the type of grass you may have in your yard:
- Closely mown grasses: Any grass you should cut short, like some Zoysias, will show circular rings of brown patches and an expanding gray ring on the outer edgemost noticeable when the grass is damp, especially in the early morning hours.
- High-cut grasses: Grasses that are kept taller often exhibit circular or nearly circular brown areas, but without the visible details of gray exterior.
- Tall fescue: Tall fescue varieties often don’t exhibit the characteristic circular patterns. Rather, the fungus will appear on scattered blades of grass, so that the whole lawn may seem a little off, with a tannish cast rather than the vibrant green you want to see.
Brown Patch Disease Fungus
Lets start with the most obvious of them all lawn fungi! Whether its brown patch disease, spring dead spot, dollar spot, or leaf spot, fungi are a huge detriment to the health of Bermuda grass.
Most of these fungi stay dormant in wait for the perfect conditions for growth and reproduction. The brown patches or dead spots will start to show during the warmth of the hot summer days and the moisture from nighttime irrigation you do on your bermuda grass lawn.
With time, fungal residue inhibits photosynthesis, as the fungi gradually spread across the grass leaves, leaving dead spots on the infested areas. The visual results are patches of brown grass.
Prevent Brown Patch Pythium Blight & Dollar Spot Contact Ryan Lawn & Tree
If youre worried about losing your lawn permanently as you watch it turn brown, piece by piece, consider contacting the Pros at Ryan Lawn & Tree for a free inspection and quote. Ryan Lawn & Tree goes the extra mile to find and utilize only the best products that arent sold in big box stores. Why? Because they work better to control disease and save your beautiful lawn!
RYAN Pros study the latest university research to make sure they are using the best products at the best rate and times to achieve the best results for your lawn. Our educated, experienced lawn care experts will examine your brown patches and determine the cause, then give you a no-obligation quote for providing the appropriate preventive fungicide program. Just a quick phone call to 855.216.2293 will get you started! Call today!
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Maintain A Healthy Lawn
The healthier your lawn is to begin with, the easier it will be to prevent brown patches. Take care of your grass by giving it the nutrients and protection it needs to flourish year-round this includes consistent watering, mowing, fertilizing, and weed control.
If youre busy with a job, a family, and a house to take care of, it may be in your best interest to hire a professional local lawn care company to take care of it for you throughout the entire year.
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What Is Brown Patch
Brown patch is a soil-living fungus which becomes active in humid months where temperatures reach the mid 80s during the day, and mid to upper 70s overnight.
Like the name would lead you to believe, brown patch causes a brownish discoloration of your turfgrass. More specifically, it starts out with lesions on the grass blades .
As brown patch develops, these lesions spread to cover the entire grass blade, causing thinning and matting of the turf. On shorter lawns, these patches may appear to have a “smoke ring” of dark gray around the outer edge.
Whats Causing Brown Patches On My Lawn
Finding brown patches on the green lawn you work so hard to care for can be disappointing and distressing. Unfortunately, Midwest summers lead not only to increased use of the outdoor spaces around your home but also to summer lawn diseases that can devastate even the best-maintained lawns. Lawn diseases like brown spot, Pythium blight and dollar spot love warm, humid weather and thrive during the months of May through September. But they arent the only causes of brown patches in your lawn.
Learn more about all the situations that can leave brown patches in your lawn and what to do if your brown patches turn out to be one of the three most common fungal diseases that attack grass in the summer.
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Brown Patch Fungus: How To Get Rid Of Brown Patch Fungus Lawn Disease
If youve noticed that the grass is turning yellow or brown in circular patches throughout your lawn, its likely that youre dealing with an infestation of brown patch fungus. This fungus causes whats known as brown patch lawn disease, and can destroy small to large areas of what would otherwise be healthy, green grass. It thrives when the weather is hot and humidity levels are high.
In order to get rid of brown patch fungus, you can apply a fungicide designed for brown patch control throughout your lawn. There are also several measures you can take to prevent the fungus from returning or spreading, such as limiting the use of nitrogen fertilizers, improving soil drainage, and improving air circulation. Read through this guide to find out everything you need to know about brown patch control and prevention to get rid of brown patch fungus for good.
Treat Lawn Fungi Brown Patch Disease
Since the replication of brown patch disease is facilitated by overnight moisture on warm days, its advisable to avoid nighttime irrigation during the summer.
The recommended practice would be to water your Bermuda grass lawn in the morning during warm days, giving your lawn enough time to dry off by the sundown. This denies the fungi within your turf the moisture they need to reproduce.
Prune nearby plants to ensure sufficient airflow above your Bermuda grass, thereby establishing a non-conducive environment for fungal growth.
Alternatively, you can apply anti-fungal pesticides/fungicides such as Southern AG Liquid Copper Fungicide. However, the high expenses associated with the treatment of Bermuda grass fungi is one reason why this is one problem you might want to prevent rather than cure.
The anti-fungal pesticide application schedule for treating brown patch disease over a standard-size lawn area for instance should be done every fortnight.
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Avoid Excessive Moisture On Grass
Prolonged periods of excessive moisture on the grass leaves are the biggest contributors to the development of brown patch disease. Excessive moisture on the grass can be caused by a number of reasons, including overwatering, dew, or guttation, which is a term referring to the water that is exuded during the night by the grass blades. To reduce the amount of water you add to your lawn, avoid watering daily, and instead base your watering schedule on the current weather conditions and the ad-hoc water requirements of the grass and soil. Also, the time of day that you water the lawn will have an effect on brown patch fungus growth watering early in the morning before sunrise enables you to remove large droplets of dew and water from the grass blades, thus speeding up the drying of the foliage once the sun has risen. Try not to water after sunrise or during the late afternoon to evening, as this increases the amount of time that the lawn is wet.
How To Identify Brown Patch Fungus On Lawn
If you have started to notice that patches of your lawn are yellowing or dying, take a closer look and inspect the shape and size of the affected areas of grass. Brown patch disease tends to manifest itself in patches of yellow or light brown grass that are roughly circular, if slightly irregular. The patches can range in size from a few inches up to several feet wide in diameter.
If the disease has been developing for a while, the affected areas can appear as patches of healthy grass that are encompassed by darker smoke rings of thin or dead grass. Also, when the conditions are most favorable for the fungus to develop, large patches of grass can become thinned uniformly throughout the lawn without any evident circular shape at all. If humidity is high or the grass is particularly wet, small amounts of gray cotton-like growth known as mycelium may have developed among the affected areas.
On cool-season grasses,looking at the blades up close will reveal the leaf has small, irregular tan spots and dark brown borders if brown patch disease is present.
On warm-season grasses, the blades will rarely have spots, but instead the grass will have rotted leaf sheaths near the surface of the soil if brown patch disease is present.
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Brown Spots = Fungal Damage
Fungal damage is a key cause of yellow or brown spots on lawns. In a Zoysia lawn, Rhizoctonia Solani is the name of the fungus that attacks the grass sheathes during cool periods in the fall or spring and often ramps up during hot and humid weather. Fungal damage usually appears in irregular patches and spreads outwards from a central point. You can work to prevent fungal damage by dethatching , aerating, watering deeply but infrequently , and improving runoff. If you have fungal damage, you can try to treat it with a fungicide.
Human And Animal Damage
Unfortunately, its very easy for us to damage lawns. Some common causes of brown spots include:
Dull Mower: Dull mower blades tear your grass, causing damage and gradual death to the grass.
Remedy: Sharpen your blades in fall and spring. After mowing, examine your grass to see if the mower is cutting cleanly.
Scalping: If your mower blade is set too low or there are lumps in the lawn, it can cut the grass too short and cause damage.
Remedy: Practice proper mowing techniques by raising your mower blades, and smooth out high spots by digging up the sod, removing some of the soil underneath, and replacing the sod.
Chemicals: Gasoline, fertilizer, herbicides, and pesticides can cause dead spots if spilled. If fertilizer is applied unevenly or incorrectly, it can burn the grass. Even insect repellents can burn your lawn when sprayed on the grass blades.
Remedy: Pour chemicals, fuels, and sprays on your driveway, not on your lawn, and follow application directions.
Animal Urine: Dogs are the most common culprit, but large birds and other animals can cause urine spots, too. Urine usually causes your lawn to turn yellow in spots, sometimes with a bright green ring around the edges where the diluted nitrogen in the urine acts as a fertilizer.
Remedy: Check out our article on How to Keep Dogs From Damaging Your Lawn for tips.
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How To Identify The Cause Of Brown Spots In Your Lawn
Brown spots in lawns are frustrating to deal with! Just when you think youve done everything right, suddenly theres a patch of grass thats dead or dying. There are a number of causes of brown spots in lawns, from insects to disease to human error.
To get to the bottom of the situation, youll have to do a little old-fashioned investigating. Heres a checklist to help you determine the cause of brown spots in your yard.
Can My Lawn Grow Back After Brown Patch Pythium Blight Or Dollar Spot
The only way the grass can recover from dollar spot and brown patch damage is for the grass to grow enough that the damaged blades are pushed up and mowed off, revealing new and undamaged blades below. Tall fescue and Kentucky bluegrass grass types grow more slowly as temperatures rise so it would take weeks or months for the grass to recover. And, it may require fall seeding to get the lawn back into shape. Thats why preventing damage before disease development is so important.
The best products for preventing and controlling lawn fungus are very expensive. Understanding turf diseases, their control, and when and how to apply them is very important. To get help with your lawn and protect it from fungus, request an estimate for disease control from a professional lawn care service.
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How To To Get Rid Of Brown Patch Fungus On Grass
Many conditions can cause patches of brown, dead grass on your lawn, but only one gets the official name brown patch. Brown patch disease is a condition caused by a single species of fungus, Rhizoctonia, that often occurs in mid- to late-summer when the weather is hot and humid.
Why Does My Lawn Have Brown Patch
Your yard can become infected during a period of cooler temperatures. The disease can take hold and develop well below 80 degrees Fahrenheit, but doesnt spread and become apparent to the naked eye until temperatures and humidity levels rise. Dew, mist, or rain on leaf blades in these conditions can contribute to the rise of Brown Patch.
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An Ounce Of Prevention
1. Soak your pets favorite areas in your lawn to remove salts from the root zone before they kill the grass.
2. Fertilize your lawn in the spring to boost the overall color and mask the darker green dog spots.
3. Train your pet to urinate in a designated area. Replace or repair the grass in this area annually or cover it with mulch.
4. Keep your pet well hydrated to make its urine less concentrated.
Catching The Disease Early
The best way to stop the spread of brown patch fungus in your lawn is to follow the guidance in the previous section, as removing the conditions needed by the fungus to grow will force it back into dormancy. If youve just noticed that the fungus has started to grow, you can fight it back by raking and fluffing the grass in the affected area to speed up the drying process. Then, you should apply an organic fertilizer to provide the grass with a healthy dose of nutrients to fight off disease. This Garden Care Organic Fertilizer from Milorganite can be used on your lawn all year round to keep your grass and plants strong and resistant.
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Can The Grass Recover From Fungus
After youve completely rid your St. Augustine turf of disease-causing fungi, the visible signs of damage will still be present on the turf. Luckily, you can help your turf recover to its lush green, healthy appearance by doing the following:
Dow Agrosciences Best Liquid Lawn Fungicide For Brown Patch
This effective fungicide is made with Myclobutanil as the active ingredient to combat the effects of fungal attacks on plants. It destroys existing fungi on the sod and prevents it from occurring again. It has power over 15+ fungal diseases, which cover leaf spot, anthracnose, spring dead spot, brown patch, and zonate leaf spot). Moreover, Dow AgroSciences is compatible with all grass types making it universal hence its trait. This liquid formulation is easy to mix and is applied on a seven to fourteen days schedule.
Optimal results are achieved when applied as a preventive measure rather than curing an already diseased turf. This enhances good sod practices and keeps them healthy and nourished for long. It can be used on commercial and social landscapes to prevent fungal diseases like dollar spot and brown patch. Activities on the lawn should be suspended for approximately 24 hours after application.
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How To Fix Dog Urine Spots On Lawns
Sharing your yard with a canine companion can be one of the best parts of having a lawnuntil dog urine lawn spots and other dog damage show up in your carpet of green. By learning how to fix dog urine spots on lawns and prevent other dog-related lawn damage, you and your dog can coexist harmoniously and enjoy a beautiful, lush lawn.
Get your four-legged buddy on board and follow these basics for simple, effective dog urine grass repair:
When Should I Treat Brown Patch Pythium Or Other Diseases
Does every yard have to be protected from fungus? It really depends upon the level of maintenance and expectations of the lawn. A mid-level lawn without an irrigation system may get some brown patch, and minor damage. If it gets bad enough, those damaged areas could be seeded in fall. You may want to consider treating your lawn disease if you:
- Seeded your yard in the spring. The young seedlings are more susceptible to fungus. Fungicide can protect baby seedlings.
- Have invested a lot in your lawn and love it very much.
- Have in-ground irrigation and water regularly in the summer to maintain good color and appearance.
- Seeded last fall. These lawns are usually thick and dense and the grass has not been through a hot summer phase, so it is typically more susceptible than mature lawns.
- Have a lawn seed that is a variety of Kentucky bluegrass that is notoriously susceptible to dollar spot and summer patch. RYAN Pros recommend using a fungicide until the variety can be switched over to other more resistant species or varieties.
RYAN Pros are experts at distinguishing one lawn disease from another one of the keys to treating your lawn with the correct type and rate of fungicide.
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