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Riley Dempster

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November 11, 2023

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A healthy lawn is not just a matter of pride; it's a crucial part of your home's curb appeal and outdoor enjoyment. However, lawn diseases can swiftly turn a lush, vibrant yard into a patchy, unsightly mess. Dempster Brothers Lawn Care & Landscaping is dedicated to helping Knox County residents understand and tackle lawn diseases effectively.

Understanding Lawn Diseases

Lawn diseases are caused by a variety of factors, including fungi, bacteria, and environmental stress. Symptoms range from discoloration and thinning to patches of dead grass. Recognizing these signs early is key to effective treatment.

Common Lawn Diseases in Knox County

  1. Brown Patch: Common in the humid summers of Tennessee, brown patch creates circular patches of brown, dying grass.
  2. Dollar Spot: Identified by small, silver-dollar-sized spots on the lawn.
  3. Red Thread: Noted for pinkish-red threads that bind the grass blades together.
  4. Pythium Blight: This fast-spreading disease causes greasy-looking spots that quickly turn brown.

Prevention Strategies

The best defense against lawn diseases is a strong offense. Here are some preventative measures:

  • Proper Mowing: Keep your grass at an appropriate height to reduce stress and susceptibility to diseases.
  • Adequate Watering: Overwatering can promote fungal growth. Water your lawn deeply but infrequently to encourage strong roots.
  • Balanced Fertilization: Too much or too little fertilizer can increase disease risk.
  • Good Air Circulation: Regularly rake and aerate your lawn to improve air circulation and reduce moisture buildup.

Treatment Techniques

Once a disease is identified, timely treatment is crucial. Dempster Brothers employs a variety of methods:

  • Fungicides: Appropriate fungicides can be effective, especially when applied early.
  • Cultural Controls: Adjusting watering and fertilizing practices can often mitigate disease spread.
  • Reseeding or Overseeding: In cases of severe damage, reseeding or overseeding can help restore your lawn's health.

Professional Help

While some homeowners prefer the DIY approach, professional help can be invaluable, especially for stubborn or widespread diseases. Dempster Brothers Lawn Care & Landscaping offers expert disease diagnosis and treatment services, tailored to the specific needs of your lawn.

Lawn Care Schedule

Creating a lawn care schedule that includes regular maintenance activities like mowing, watering, and fertilizing can significantly reduce the risk of disease. Seasonal lawn care, especially in spring and fall, is critical for maintaining a healthy lawn.


Your lawn is an extension of your home, and keeping it disease-free is vital for its beauty and health. By understanding common lawn diseases, implementing prevention strategies, and seeking professional help when needed, you can maintain a vibrant, healthy lawn year-round. Dempster Brothers Lawn Care & Landscaping is your partner in achieving and maintaining the lawn of your dreams in Knox County.

With 12 years of expertise, Riley is the perfect partner to deal with your most valuable asset - your home. He provides comprehensive landscaping services and promises unmatched knowledge for every recommendation he makes. His dedication delivers results that last long-term; plus his passion will guarantee satisfaction from start to finish!

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Riley Dempster

Owner & CEO of Dempster Brothers Lawn Care & Landscaping