Red Thread Disease

An up-close look at red threadWhat is red thread?
Red Thread is often a common occurrence on lawns in the cooler and more humid areas of the country.  It can be most severe on slow growing, nitrogen hungry turfgrasses such as bluegrasses, fescues, bermudagrasses, ryegrasses and bentgrasses.
What does red thread look like?
The disease first starts out appearing like small water-soaked spots on the leaf blades of the turf. As these spots enlarge, the leaf tissue dries out, turning tan in color. The final stage of the disease appears as the fungus forms pink to red masses of threadlike material at the ends of the grass leaf tips.
Infected areas appear in irregular patches ranging in size from two inches to three feet in diameter. Red Thread development t is encouraged by temperatures in the 68° - 80°F range coupled with rains, heavy dew and fog. This fungus can be spread to healthy turf by mowers and other equipment.
A photo of red thread diseaseHow can I minimize red thread disease?
It’s important to note that red thread is a cosmetic disease which does not affect the grass plant at the crown or root-zone levels. In other words, turf will return to its normal state once conditions become less favorable for the disease, and more in favor of turfgrass growth.

  1. Fertilize the affected area of the lawn with an organic-based fertilizer. This will help the lawn area “outgrow” the condition by producing new leaf tissue.
  2. If needed, watering should be on a weekly basis, soaking the areas for approximately one hour. Allowing the turf to dry out excessively can be very damaging and should be avoided.
  3. A photo of red thread diseaseThe red thread disease overwinters in thatch so if there is a significant thatch layer in your yard dethatching can help to reduce future outbreaks. For lawns with an appropriate amount of thatch, a regular schedule of core aeration is recommended to minimize future outbreaks of the disease.
  4. Seeding the lawn with turfgrass varieties resistant to disease is also an excellent cultural control.
Lawn diseases typically occur from time to time depending mostly on weather conditions. If you have questions, or suspect you have a problem with red thread, call your local NaturaLawn® of America franchise office.

Get My
Free Price Quote


My lawn is beautiful.  It has never looked this good.  It looks like lush green velvet.  We only had one dandelion this spring and it was on the edge of our property, so it must have been the neighbor’s!

Jennifer L. Lloyd – Bear, DE

For over 22 years, NaturaLawn of America has been creating naturally beautiful lawns that are safer for you, your family, pets and the environment.  Of course our satisfied customers say its best!
In less than a year, my lawn has gone from one of the worst on the block to among the best.  This is quite an accomplishment considering we have well water and, therefore, never water the lawn.  The  service is also top notch – friendly, knowledgeable and always willing to explain why they’re doing what they’re doing.

Stewart Kaufman – Southbury, CT

NaturaLawn of America has cared for my lawns now for 10 years (2 houses) and I am completely satisfied with your company.  My service technician is friendly, caring and knowledgeable.  I’m happy with the results, how you care for my lawn and the prices you charge – happy enough that I recommend you to others and I tear up ads from competitors without even reading them.
My husband and I are currently acquiring a house in New Hampshire.  There is no question that I will want NaturaLawn of America service at that house.  It is a true pleasure to work with a “national” company that treats their customers in a local business manner.

Anne Bullitt – Newark, DE

I’m just dropping you a note to let you know that we are very pleased with your lawn service, the way we are treated and the beautification of our lawn.  Many families have seen our lawn and are very impressed by the way it looks.  They are even more impressed that you are an organic-based company and use 85% less chemicals and pesticides.  We have referred many of our friends and neighbors and will continue to refer people as the opportunity arises.

Jack & Sherrie Decker – Plainview, MN

Our lawn is beautiful.  Thank you for the great results AND for protecting my family and the environment from unnecessary chemicals and pesticides.  It’s nice to have a lawn care company that is concerned about my lawn, my family and the environment.  When people are looking for a healthy, nice lawn, friendly service AND a safer lawn care option, I highly recommend they call NaturaLawn of America.

Pete Plimmer – Wilmington, DE

You are doing a great job! We are glad we switched to NaturaLawn of America and are spreading the word about the super job you do.

Steve Pfannenstein – Rockville, MN

I wanted to write and let you know how pleased I am with NaturaLawn of America.  I had never used a lawn service before.  I’m against putting more chemicals into the environment, so I decided to see what you could do organically.  My lawn was 1 ½ years old – builder grade seed on builder soil! It was a lawn in need of some help, but I didn’t know how wonderful it could look.
Two days ago, my neighbor (who used one of the top chemical lawn companies) sounded a little baffled and asked what I do to my lawn – It looks like a carpet!  We just smiled and said “NaturaLawn of America”.  That’s when I took a good look at my lawn and everyone else’s - our lawn is thick and green.  Despite the recent drought, despite our lack of attention to our lawn, and despite its humble beginnings, it is a magnificent piece of work.

Paul & Doris Pavlichek – Mount Airy, MD

This is our second year with NaturaLawn of America and I can’t say how much we appreciate your work. The yard is awesome!

Don Strei – Elk River, MN