Brown Patch in Your Lawn: What It Is & How We Can Deal With It...

Hi Ray,
I hope you had a great Fourth of July and are enjoying the summer! 
With all the heat and humidity we've had lately, we're seeing a big uptick in Brown Patch across lawns in Cincinnati.
If you've noticed circular brown or tan patches showing up in your lawn, you're not alone, and it's not your fault. You're likely seeing a common turf disease called Brown Patch.

What Is Brown Patch?
Brown Patch is a fungal disease that affects many cool-season grasses, especially tall fescue and perennial ryegrass. It thrives in hot, humid weather, usually when daytime temps are high and nighttime temps stay above 65°F.
You might see:
  • Circular or irregular brown patches
  • A slightly darker "halo" or "smoke ring" in the early morning
  • Grass that looks matted down or thinned out in spots
How Does It Form?
Several conditions make Brown Patch more likely:
  • High humidity and heat (July and August are peak season)
  • Overwatering or watering at during the heat of the day and/or at night
  • Heavy nitrogen fertilization during summer
  • Poor airflow or excessive thatch buildup
These conditions create the perfect environment for the fungus to grow and spread.
How Do We Reduce or Eliminate It?
The good news? It's treatable and preventable.
Here are the keys:
  • Adjust watering habits – Early morning is best; avoid evening watering and watering during the day. 5am - 8am are best times to water during the hot summer months.  
  • Avoid high-nitrogen fertilizer in mid-summer, this is already accounted for in your Acres of Green Lawn Care treatment program. 
  • Aerate and dethatch to improve air circulation in the soil. 
  • Apply fungicide treatments if needed (targeted and turf-safe).  Very effective, but can be expensive due to needing several applications.  
If you're not sure whether your lawn is dealing with Brown Patch, or you'd like help preventing future outbreaks, I'll be happy to stop by for a diagnosis and personalized recommendations.
The quickest way to get in touch is by calling or texting 513-325-0886. 
Warm regards, 
 
Brian Calkins
Acres of Green Lawn Care
513-828-6100 | LoveYourLawnCincy.com 
Licensed Turf Manager :: Ohio Department of Agriculture License #161426
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