Everything You Need to Know About Lawn Fungus

If you’re like most homeowners, you want a lush, green lawn that’s free of any pesky fungus. Unfortunately, lawn fungus is more common than you might think. In this blog post, we will discuss everything you need to know about lawn fungus- from what causes it to how to get rid of it. We’ll also provide some helpful tips on how to prevent lawn fungus from occurring in the first place. So read on and learn everything you need to know about keeping your lawn healthy and fungus-free.

What is a lawn fungus?

Lawn fungus is a type of plant disease that affects the grass in your lawn. It can cause your grass to become yellow or brown, and it can also lead to the development of patches on your lawn. There are many types of lawn fungus, but some of the most common ones include dollar spot, red thread, and rust.

What causes lawn fungus?

There are many things that can cause lawn fungus, including poor soil health, weather conditions, and even pests like nematodes. Most cases of lawn fungus are caused by one or more of these factors.

Lawn fungus starts when the conditions are just right for its growth – warm and moist weather with little sun exposure. And, since grass is often in the shade of trees and other plants, it’s common for fungus to get started in these environments.

What are the dangers of lawn fungus?

Dangers of lawn fungus can include damage to your grass, as well as health risks for your family and pets. Some types of fungus can produce harmful toxins that can cause skin irritation, respiratory problems, or even death.

It’s important to be able to recognize the symptoms of lawn fungus, so you can take appropriate action before it becomes a bigger problem.

What to consider before treating lawn fungus


Type of fungus

The first thing you will want to do is determine what type of fungus you are dealing with. This may take some time because there are many types of lawn fungus.

Some of them are more obvious than others, while others are almost impossible to see without getting down on your hands and knees and looking closely at the grass.

If you are not sure what type of fungus you have, or if you are dealing with a particularly stubborn case, it may be best to bring in a professional. They will be able to identify the fungus and recommend a course of treatment.

Location of fungus

The next thing you need to consider is the location of the fungus. Fungus can grow anywhere on your lawn, but there are some areas that are more prone to it than others.

For example, if your lawn has a lot of shade, it is likely to develop fungal problems more often than a lawn that gets full sun exposure.

Disease severity

Another factor to consider is how severe the disease is. Some types of fungus are more serious than others and can cause extensive damage to your lawn if they are not treated properly.

If you are unsure how severe the problem is, it is always best to err on the side of caution and contact a professional.

How to Identify lawn fungus

A few common types of lawn fungus include dollar spot, brown patch, and gray leaf spot. They all look a bit different and have their own characteristics, but they all have one thing in common: They will cause damage to your lawn if left untreated.

It’s important to try to identify the type of fungus you’re dealing with before using any fungicide treatment so that you know exactly what you’re up against and how best to treat it.

The easiest way to identify a type of fungus is by researching pictures online and comparing the pictures with what your yard looks like.

Treating lawn fungus

Once you have a good idea of what type of fungus you are dealing with, you can start to look for the right fungicide treatment.


There are many types of fungicides on the market, and not all of them will work against every type of lawn fungus. Most fungicides need to be applied regularly in order to be effective. The amount and frequency of the application will depend on the product that you choose.

In general, you will want to apply the fungicide when there is no rain forecast for the next 24 hours. You should also water your lawn well before applying the fungicide so that it will be better absorbed by the grass blades.

It is important to read the label carefully before selecting a product and to only use products that are specifically designed for treating lawn fungus.

Maintaining your lawn

Once you have treated your lawn for fungus, it is important to take steps to prevent it from coming back. One of the best ways to do this is to maintain a healthy lawn.

Mowing your lawn regularly, watering deeply but infrequently, and fertilizing according to the needs of your grass type will all help to keep your lawn healthy and less susceptible to fungal diseases.

If you live in an area that is particularly prone to fungus, you may also want to consider using a fungicide on a regular basis as a preventative measure. Your grass can eventually recover from fungus.

When should I treat my lawn for fungus?

The good news is that once you have identified the type of fungus, then it will be much easier for you to treat it. Unfortunately, no two types of lawn fungi are alike! Each has different symptoms and requires a different treatment plan.

Once the fungus has started, it’s too late to do anything but wait out the bad weather before treating your lawn with fungicide. The spores may persist long after the fungus has died back if not treated immediately.

Fungi thrive in damp spots where water collects or puddles up, such as near sprinkler heads, trees, or garden beds.

Are there any natural remedies for treating lawn fungus?

Yes, there are several natural remedies that can help treat lawn fungus.

Using apple cider vinegar mixed with water

To get rid of brown patches, mix together one part apple cider vinegar and eight parts water. Apply this mixture to the affected area with a spray bottle.

The acidity of the vinegar will kill the fungus and help to prevent it from coming back.

Baking soda

Baking soda can also be used to treat brown patches. Mix together one part baking soda and two parts water. Apply this mixture to the affected area with a sponge or brush.

Let it sit for 30 minutes before rinsing it off with water. The baking soda will help to neutralize the pH of the soil, making it less hospitable for fungi.

Tea tree oil

Tea tree oil is a natural fungicide that can be used to treat all sorts of fungal diseases. Add 30 drops of tea tree oil to a quart of water and spray it on the affected area.

You can also add one teaspoon of tea tree oil to a gallon of water and use it as a soil drench.

Be sure to test a small area first to make sure that the tea tree oil does not harm your grass.

Tips on how to prevent Lawn Fungus:

  • First, make sure that your grass is getting enough sunlight and water.
  • You should also avoid using too much fertilizer, as this can lead to an overgrowth of fungi.
  • Be sure to aerate your lawn regularly to improve its drainage and reduce the risk of fungal growth.
  • Keep your lawn mower blades sharp — dull blades tear the grass instead of cutting it cleanly, leaving a jagged edge that’s susceptible to disease.
  • How you water your lawn is also important: Water early in the morning so that there’s plenty of time for the water to soak in before the sun goes down. And avoid watering too often if possible, as this can also lead to fungal growth.


Frequently Asked Questions


Does lawn fungus go away?

Yes, lawn fungus will go away on its own in time. However, if you want to speed up the process, you can rake up the dead grass and dispose of it properly. You can also treat the area with a fungicide.

How long does it take for grass fungus to go away?

It depends on the type of fungus and the severity of the infestation. Some types of fungus will go away within a few days, while others may take weeks or months.

Will grass come back after fungus?

Yes, the grass will eventually grow back after the fungus has been removed. However, it may take some time for the grass to fully recover. In the meantime, you can try to cover the affected area with mulch or straw.


Lawn fungus is an unfortunate reality for many homeowners, especially those who live in humid climates. Although there are several ways to treat lawn fungus, the best way to prevent it from coming back is by maintaining a healthy lawn. By following these tips, you can keep your lawn looking beautiful all year long.