Rust Lawn Disease in Emmaus, Allentown, & Macungie, PA | Green Turf Care
Rust lawn disease in Emmaus, PA.

Rust Lawn Disease in the Greater Lehigh Valley, PA area

Rust is a lawn disease that shows up in lawns from mid-summer to later in the fall and can be carried by the wind.

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We treat rust lawn disease when it shows up in lawns in Emmaus, Allentown, and the nearby communities in Pennsylvania.

This disease shows up as orange or reddish-brown patches on the grass that resemble rust on metal.

If you walk through your lawn and notice orange or reddish-brown patches on the grass, then your grass has probably caught rust lawn disease, named so because it resembles rust on metal.

This disease shows up in yards around mid-summer to late fall and we treat its appearance at properties in Allentown, Macungie, Emmaus, and the surrounding Pennsylvania communities.


Learn about what causes rust to form on your grass.

While the rust that forms on metal may be more well-known, rust lawn disease should also be a concern for any property owner. The fungal disease begins to form toward the end of the growing season around mid-summer to late fall when the grass growth begins to slow a bit. The conditions that cause rust to form include:

  • Warm and humid weather
  • Excessive watering of the grass
  • Long periods of dew
  • Poor drainage in the lawn
  • Shaded areas
  • Malnourished or stressed lawns

The first sign of rust is small, yellow spots on the blades of your grass. These spots will grow larger and at some point, they will emerge into orange or reddish clusters of spores that give the disease its rust-like appearance. Eventually, the disease will cause the grass to thin out and die.

Rust often affects types of grass that have a deep color, such as Kentucky bluegrass, tall fescue, and perennial ryegrass.


Preventing rust is the best way to ensure it does not attack your grass.

To avoid rust developing in your grass, the best strategy is prevention and avoiding the conditions that cause it to develop in the first place. Know these conditions and be proactive about how much moisture is in your lawn, especially in shaded areas.

If your lawn does catch rust, there are some steps we can take to treat it so it does not kill off your entire lawn. Rust spreads via wind, so once you spot it, make sure to contact a lawn care company to help you take care of it with certain types of treatments like:

  • Fertilization: A malnourished lawn needs more nutrients to be strong enough to fight off rust and other diseases.
  • Watering properly: Too much water causes rust to form. We advise you on how to adjust your watering schedule.

Within the next two weeks, if you do not see any improvements, we will apply a fungicide treatment to get rid of the rest of the disease.


Suspect that your lawn may have rust disease? Contact us to assess your yard's condition.

In Allentown, Emmaus, Macungie, and other Pennsylvania cities, Green Turf Care provides rust lawn disease control and other treatments. If you suspect your grass has a disease, contact us at (484) 452-3595 so we can come out to assess your yard's condition.