• Wilted Grass"Church" is Copyrighted by Flickr user: byrne7214 under the Creative Commons Attribution license.
  
  

Conditions

• The most favorable conditions for brown patch development include the presence of active fungi, vigorous growth of susceptible grass and daytime temperatures of 75 to 85 degrees.
  
  

Symptoms

• The most common symptom of brown patch disease is a pattern of wilted grass with a yellowish ring called a smoke ring on the perimeter of the diseased areas.
  
  

Control

• Brown patch is a severe disease that can somewhat be controlled by applying the proper amount of trace elements and nitrogen during ideal times.
  
  

Prevention

• Aerate often to prevent brown patch disease, and in the affected areas, reduce shade. Follow a detailed fertilization schedule to prevent extreme amounts of nitrogen.
  
  

Treatment

• Fungicides commonly used to treat brown patch are Armada fungicide (a professionally applied product), chlorothalonil and benomyl. If temperatures exceed 90 degrees, fungicides containing thiophanate-methyl and or chlorothanil become ineffective.