Dusty Rusty Grass

What is that rusty yellow-orange hue on the surface of your grass? Take a closer look, but be careful not to step on it. If it gets on your shoes, it will spread to healthy areas of your lawn, and before you know it, your entire lawn could change color. The culprit is Lawn Rust – a lawn fungus that most commonly affects grasses mowed at a taller height.    

Simply Green Lawn Care Plus experts are here to keep your lawn healthy and weed-free. So, if you suspect Lawn Rust is ruining your grass, keep reading to learn more about what it is and how it can be treated and prevented in the future. For further inspection, call Simply Green to schedule a visit from a technician.

What is Lawn Rust?

Lawn Rust is a fungal disease that leaves a powdery orange residue on tall turfgrasses. This  condition affects many species of grass, including Bermudagrass, Kentucky bluegrass, and fescue. In its early stages, it spreads easily, so it’s best to treat it when it becomes visible. In later stages, the disease can cause irreversible damage, so be sure to treat it at the first signs.

Weed Control Promotional Banner by Simply Green Lawn Care

What Does Lawn Rust Look Like? 

Lawn Rust starts with small, yellow spots on blades of grass. Over time, as the fungus breaks through the spots, a powdery orange substance appears. The look is similar to seed-plant pollen which can rub off on clothing, shoes, pets’ paws, etc., when walked on. This is the crucial time to treat Lawn Rust because as the disease progresses, the grass blades turn brown, then black, dry out, and die, creating bare spots on the lawn. 

What causes Lawn Rust?

Puccinia spp., is the fungus that causes Lawn Rust. Other types of Georgia grasses most commonly affected are ryegrasses, zoysiagrass and certain types of tall fescue. Lawn Rust spores can survive the winter months and become active in the spring. By mid-summer, when temperatures are warm and wet, it appears when dense thatch takes on a yellowy-orange hue.

How Does Lawn Rust Spread?

Lawn rust can spread quickly and easily, especially during the mid-stage of the disease when the rust-colored powder appears. The loose spores can be carried by the wind, people, pets, lawn equipment and even rain runoff. Homeowners should avoid mowing or walking on a lawn infested with lawn rust to avoid spreading it to grassy areas that are healthy.

Can Lawn Rust be Prevented?

Lawn Rust can infect your grass through no fault of your own. Spores simply could have been carried by the wind to invade your turf. There are measures Georgia homeowners can take, however, that can resist the fungus from settling in. Here are some tips to make sure your lawn is healthy and well-maintained. 

  • Keep the correct mowing height according to what kind of grass you have. 
  • Cut grass regularly so it doesn’t get too long.
  • Rake clippings to avoid thickening thatch.
  • Aerate the soil to prevent compaction.
  • Create a fertilization plan with Simply Green Lawn Care experts. 
  • Water deeply but infrequently, and only in the morning. Letting water sit on the grass overnight can foster growth of many types of fungi.

Weed Control Promotional Banner by Simply Green Lawn Care

Is Lawn Rust Treatable?

Yes! If Lawn Rust is already present, apply an effective fungicide including azoxystrobin, mancozeb, mancozeb plus copper hydroxide (formulated as a mixture), metconazole, myclobutanil, propiconazole, pyraclostrobin, triadimefon, trifloxystrobin, and triticonazole. To be sure which is best for your lawn, contact Simply Green Lawn Care Plus for a treatment plan.

Once the fungicide has taken effect, mow the affected grass and aerate the soil. Then begin the prevention methods mentioned above to keep Lawn Rust from reinfecting your lawn. 

For severe cases of Lawn Rust, homeowners may need to reseed or resod the damaged areas.

Simply Green Lawn Care Plus Is Here to Help!

Lawn Rust can be a frustrating and unsightly issue for Georgia homeowners.Let Simply Green help you create a healthy lawn and keep it maintained with the right service programs. If you have any questions or concerns about Lawn Rust or any other lawn care issue, contact Simply Green for help!

About Simply Green Lawn Care

Picture of a Simply Green Spray Technician treating a lawn

Simply Green aims to provide the highest quality lawn care, mosquito control, and lawn pest control services to Georgia residents.


We are locally owned and operated which allows us to be accessible, attentive, and responsive for customers in Georgia.


Our well-trained team is easy to work with and determined to exceed expectations.


All our plant health care specialists are Georgia Department of Agriculture Certified and maintain their Category 24 applicators license.

Simply Green Lawn Care
Based on 125 reviews
powered by Google
gloria richardsongloria richardson
12:50 12 Dec 22
Ben is wonderful! He always answers all of my questions, please don’t take him away from our route!!!Also the office always texts few days before they are coming so we always know what date they are coming. Great customer service!!!
CJ BrieskeCJ Brieske
17:16 11 Nov 22
Have used Simply Green for over a year now for weed control & fertilization. Their service & products have helped improve the appearance & health of my grass in this short time. Taffari has been the technician the last few visits and he is great - super knowledgeable & able to answer my questions. On the last visit Taffari had the service manager reach out on a concern and it was addressed & resolved the same day.
Mitch FergusonMitch Ferguson
16:54 04 Nov 22
Taffari the lawn treatment person was professional and knowledgeable of all aspects of the service that he gave me. I would highly recommend him and Simply Green.
Andrea MooreAndrea Moore
14:19 04 May 22
Simply Green is the friendliest and most professional company I have dealt with. Always on time, and quality work. My yard has never looked better. If I have any questions the response is quick and efficient..I would recommend them to anyone looking for lawn care company
Elder Ron Brown Sr.Elder Ron Brown Sr.
23:43 17 Sep 21
Simply Green Lawn Care has really done a wonderful job with my yard. They keep the weeds out and it always looks crisp and green.

Latest From the Blog

Implementing Water-Saving Strategies

Implementing Water-Saving Strategies

  Watering too little or too much can affect the health of your Georgia lawn...
Planting a Pollinator-Friendly Garden

Planting a Pollinator-Friendly Garden

  What makes those Georgia peaches and pears so sweet? It’s likely the power of...
Humming Bird flying around flower

Natural Pest Control: Balancing a Healthy Lawn Ecosystem

  A healthy and balanced ecosystem results in various plants, insects, and animals living together...