Can Lawn Rust Cause Allergies? (EXPERT Answer)

As beautiful as a green lawn is, it can sometimes come with unwanted side effects, such as allergies. But did you know that even the rust that can form on your grass blades can cause allergic reactions? Find out more in our post on Can Lawn Rust Cause Allergies? Expert Answer.

If you’re dealing with brown patches in your lawn, check out our post on Can Lawn Recover from Brown Patch? My Experience for some helpful tips on how to revive your grass.

Lawn rust is a fungal disease that appears on lawns as yellow-orange or rusty-brown patches.
Lawn rust can cause allergies, especially if you are allergic to mold or other fungi.
Symptoms of lawn rust allergies can include coughing, sneezing, runny nose, itchy eyes, and skin rashes.
To treat lawn rust, you should mow your lawn regularly, water it deeply but infrequently, and avoid using excessive amounts of nitrogen-based fertilizers.
To prevent lawn rust, you should maintain a healthy lawn by mowing it regularly, watering it deeply but infrequently, and fertilizing it properly.
Grass allergies in dogs can result in symptoms such as itching, scratching, and licking, and can be treated with antihistamines or other medications.

Keeping Your Lawn Free Of Rust

Keeping your lawn free of rust is easy, as long as you know what causes rust and how to get rid of it. Rust thrives in moist environments, so keeping your lawn healthy will help prevent infection. Also, use a fungicide that is safe for your family and pets. 

If you want to treat the problem naturally without using chemicals, consider planting grass seed or sod over any areas where the grass has died off from rust.

“Using the wrong type of fertilizer or applying it incorrectly can cause severe damage to your lawn, resulting in burn patches or even death. Take a look at our article on burning your lawn with fertilizer to learn more about the types of fertilizer and how to properly apply them.”

What Is Lawn Rust?

Lawn rust (also known as sorghum rust) is a fungal disease that causes yellowing, browning and death of grass. The disease develops in the summer months when moisture and temperatures are hot.

Lawn rust is caused by the fungus Puccinia sorghi, which attacks cool season grasses including Kentucky bluegrass, fine fescues and perennial ryegrass. It can also affect rye grasses but these are not susceptible to infection from P. sorghi.

How to Control Lawn Rust (4 Easy Steps)

Simple, Effective Treatments For Lawn Rust

Treating lawn rust can be done in a variety of ways, but there are a few options that work particularly well. The first thing you should do is apply either an herbicide or fungicide to your lawn. 

A systemic herbicide contains chemicals that penetrate the leaf tissue and kill the fungus from within. It’s important to note that this type of chemical must be applied at least once per year in order for it to continue working effectively on your lawn.

Systemic fungicides are just what they sound like: They get into the plant’s vascular system (the xylem), so they’re able to kill disease organisms while they’re still inside the plant’s body rather than having to wait until after they’ve already penetrated through its surface tissues before taking action against them!

“Aeration is a critical process in maintaining a healthy lawn. However, not everyone has access to the machine necessary to perform it. If you’re in this group, check out our article on aerating your lawn without a machine for tips on how to do it without any special tools.”

Effective Natural Treatments For Rust On Your Lawn

If you’re trying to cure your lawn of rust, there are a few proven methods. The first trick is to use a mixture of vinegar and water. Vinegar has long been used as a disinfectant for both animals and plants alike, so it makes sense that it would be effective against rust as well. 

You should mix one cup of vinegar with 2 ounces of water in a spray bottle before applying it over the affected areas. The second method involves using salt water instead of vinegar water you can either dissolve 1 tablespoon in 2 ounces or dissolve 4 tablespoons into 1 gallon before mixing them together with warm tap water in your sprayer. 

A third option is to use hydrogen peroxide and water (1 part peroxide: 9 parts H2O) or baking soda and water (1 teaspoon baking soda: 2 cups H2O). 

Lastly, dish soap mixed with warm tap water can also have an effect on rust if sprayed onto infected grass; use about 1 ounce per quart when making up this solution if you plan on using it as an internal treatment for weak areas within your lawn’s system rather than just spraying directly onto the surface where symptoms appear externally.

Dusting And Raking Can Help Remove Lawn Rust In Winter

If you have rust on your lawn, consider applying a fungicide to control it. Fungicides will kill the fungus and prevent new growth from taking hold. 

The best time to apply fungicides is during dry weather when the ground temperature has reached at least 55 degrees. Some examples of effective chemical treatments include:

  • Sevin Dust
  • Arsenal Fungicide
  • Banner Maxx-Lawn (available at Lowe’s)

How Long Does Treatment Take To Work On Lawn Rust?

It all depends on the temperature, severity of the rust, and how much water is available to the fungus.

Preventing Lawn Rust

Fertilize your lawn regularly. Your lawn can only do so much to absorb iron from the soil, so it’s important to give it a little boost by adding fertilizer that contains iron or zinc. You can also use a fungicide with these ingredients if you’re concerned about fungus in your yard.

Keep an eye out for dead grass throughout the year, especially in spring and fall when temperatures are rising and falling quickly this is when pests like rust thrive most easily! Remove these areas immediately before they have time to spread their spores onto healthy plants nearby.

“Mowing your lawn is a necessary chore, but it can trigger allergies and make symptoms worse. Our article on can mowing the lawn cause allergies? details why this happens and what you can do to keep your allergy symptoms under control.”

Will Your Grass Recover From A Fungal Disease Like Lawn Rust?

Yes, you can treat rust on your lawn. The treatment depends on how much damage has been done to your grass, how fast you notice it and what type of chemical or organic treatment you want to use. 

If the damage is moderate or severe and you catch it early enough, your lawn should recover completely within a few weeks.

However, if left untreated for too long or worse yet not at all the grass may never fully regain its color or become damaged beyond repair (although still able to be used as an area for walking).

What Happens If You Use Chemicals To Treat The Rust On Your Grass?

If you have rust on your lawn, chemicals are the best way to get rid of it. The most common chemical treatment is Sevin dust, which can be applied either by itself or mixed with other chemical treatments. 

Another option is using a fungicide, but keep in mind that this method only works against certain kinds of fungal diseases and not all kinds are effective against rusts.

If you want to use organic products instead of chemicals (which we don’t recommend), there are some options available to help treat rusts as well. 

For example, one option would be applying a systemic fungicide or combination of chemicals and organic treatments such as neem oil or garlic/clove sprays twice per week during the summer months when conditions are favorable for growth and reproduction

Are There Effective Alternatives To Using Chemicals On The Fungus That Causes Lawn Rust?

One of the easiest ways to deal with rust is by removing excess spores from your yard. Dusting and raking help remove them from affected areas, allowing you to use a natural treatment for rust on your lawn. 

Dusting involves spraying an anti-fungal solution on the grass and leaves before raking it off into piles that can be disposed of away from pets or children. 

This method is effective in winter months when there aren’t any active spores present in the soil yet so it should be done at least once every three weeks until frost arrives each year.

In addition to dusting and raking, you can also treat your yard naturally using vinegar sprays or other products made from ingredients such as garlic extract or tea tree oil (just make sure not too much gets into drinking water supplies). 

If these options don’t seem like something that would work well enough for you then consider using chemical pesticides instead; however these may cause problems later down line so please keep this in mind before making any decisions about what kind of treatment might work best with regards toward preventing future infections–especially if they involve animals!

Identifying Signs Of Lawn Rust

Lawn rust is one of the most common fungal diseases affecting grass and turf. It affects all warm season grasses, including Bermuda and St. Augustine varieties. Lawn rust symptoms include yellowing or browning leaves on the bottom of your lawn, with leaves on top remaining green and healthy. 

Rust causes stems to become brittle and break easily, which can cause plant death if not treated in time. 

You may also see brown or yellow spots on your lawn that are caused by spores from this fungus being released into surrounding air currents where they settle onto other parts of your yard before landing again in new areas on various plants across your landscape.”

“Soap isn’t just for cleaning your hands. It has a variety of uses in gardening and lawn care as well. If you’re curious about using soap in your lawn care routine, check out our article on can soap help my lawn? to learn more about its benefits.”

Symptoms Of Lawn Rust

If your grass is affected by rust, it will turn yellow and then brown. The fungus that causes rust lives in the soil and infects the roots of grasses. 

As a result, the grass dies off completely. Rust can also be treated with Sevin dust.

What Should I Do If My Grass Is Infected With Rust?

If your lawn is infected with rust, you will want to treat it as soon as possible. Rust spreads quickly and if you do not get rid of it right away, it will be difficult or impossible to get rid of completely. 

Rust can be treated by applying Sevin dust at a rate of 1 pound per 1000 square feet every two weeks during spring and summer months. You should also use a spreader when applying the Sevin dust so that the grass blades are evenly covered with the chemical. 

In addition, wear protective gear such as gloves and goggles while treating your lawn because while they do not die from using this type of fungicide (or other forms), some may experience skin irritation from contact with it. 

It is also important not to apply anything containing Sevin dust in windy conditions because this could cause dispersal of fine particles into neighboring yards where they might affect pets or other animals which would then potentially harm them if eaten by these animals over time.

Treating Rust On Your Own With Sevin Or Other Products.

Rust on your lawn can be treated with Sevin dust, also known as carbaryl or 1-naphthylphthalamic acid. When applied as directed, Sevin dust is a safe and effective way to treat rust in your lawn. If you decide to apply the chemical yourself, follow these steps:

  • Use proper safety gear when applying any chemicals around your home or yard; wear gloves and eye protection if possible
  • Mix Sevin according to package directions (1 lb/1000 sq ft) and add water per label instructions (50 mL/1000 sq ft). This will make a 1% solution of Sevin dust with water
  • Spray this mixture evenly over the infected areas of grass; be careful not to spray any other plants! Water in well after application

Getting Rid Of Yellow And Dead Patches In Your Yard Caused By Lawn Rust

Getting rid of yellow and dead patches in your yard caused by lawn rust.

The best way to deal with fungal diseases like lawn rust is prevention. If you’re experiencing brown spots on your grass, it’s important that you treat the area immediately before the infection spreads further and damages more of your lawn. 

Applying Sevin dust will help control the spread of fungus and prevent further damage from occurring.

If you want to get rid of yellow spots on a particular part of the yard, consider applying a fungicide such as Cuprofix 20SC (0-0-60). This chemical works by killing off fungal spores that can cause damage if left untreated – which means less time spent treating patches!

Lawn Rust Can Be Treated

Lawn rust can be treated. You can use Sevin dust to treat lawn rust on your lawn, but you will have to be careful about how often you apply it. 

The chemicals in Sevin dust are poisonous to both pets and children, so make sure that no one comes into contact with them especially children who may put their hands in their mouths after touching the chemical! 

If you have pets or children around the house, keep them away from where you are using Sevin dust because even small amounts of exposure can hurt them.

“Mowing a wet lawn can cause severe damage to your mower and make your lawn look unsightly. Our article on can wet grass break a lawn mower? provides tips on how to prevent this and keep your mower running smoothly all season long.”


Lawn rust can be treated and there are many effective ways to manage it. It’s important to keep in mind that rust is a fungus, so it needs moisture and warmth to grow. 

If you want to prevent disease on your turfgrass, you should avoid watering too much or allowing standing water on the ground throughout the year. If you already have an infection, then treat it with an organic fungicide like Sevin dust or copper sulfate.

Further Reading

Can Lawn Rust Cause Allergies?: This article discusses the causes, symptoms, and treatment of allergies caused by lawn rust.

Grass allergy sufferers may experience red, itchy and inflamed eyes: This article discusses how grass allergies can cause eye irritation and inflammation.

Grass Allergies: This website provides comprehensive information about grass allergies in dogs, including symptoms and treatment options.


What is lawn rust?

Lawn rust is a fungal disease that appears on lawns as yellow-orange or rusty-brown patches. The patches appear in irregular shapes and can be as small as a dime or as large as a dinner plate.

Can lawn rust cause allergies?

Yes, lawn rust can cause allergies, especially if you are allergic to mold or other fungi. Symptoms of lawn rust allergies can include coughing, sneezing, runny nose, itchy eyes, and skin rashes.

How do I treat lawn rust?

To treat lawn rust, you should mow your lawn regularly, water it deeply but infrequently, and avoid using excessive amounts of nitrogen-based fertilizers. If the disease persists, you may need to apply a fungicide.

How can I prevent lawn rust?

To prevent lawn rust, you should maintain a healthy lawn by mowing it regularly, watering it deeply but infrequently, and fertilizing it properly. You should also ensure that your lawn receives adequate sunlight and air circulation.

Can dogs get grass allergies?

Yes, dogs can get grass allergies. Grass allergies in dogs usually result in symptoms such as itching, scratching, and licking, and can be treated with antihistamines or other medications.