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Winter Lawn Disease Prevention

Winter can be a challenging season for your lawn, particularly when it comes to diseases like brown patch and snow mold. By identifying these common culprits early and implementing preventative measures such as proper watering, aeration, and fertilization, you can safeguard your lawn from damage and ensure it stays healthy and resilient throughout the season.

Common Winter Lawn Diseases

  • Snow Mold: This fungal disease thrives in cold, wet conditions and can cause circular patches of damaged grass.
  • Brown Patch: This disease is favored by warm, humid weather and can cause large, brown, circular patches on your lawn.
  • Dollar Spot: This disease creates small, circular patches of dead grass that resemble dollar coins.

Prevention Tips

  • Proper Watering: Avoid overwatering, as it can create ideal conditions for fungal diseases. Water deeply and less frequently.
  • Fertilize Wisely: Apply a balanced fertilizer to provide your lawn with essential nutrients.
  • Mow High: Mowing your lawn higher in the winter can help retain moisture and protect it from cold temperatures.
  • Aerate Your Lawn: Aeration reduces soil compaction, improving drainage and allowing air, water, and nutrients to reach the roots.
  • Dethatch Your Lawn: Dethatching can help remove excess thatch, which can harbor fungal diseases.
The cobweb like appearance of snow mold as seen on grass after the winter snow has melted away. Snow mold is a type of fungus and a turf disease that damages or kills grass after snow melts, typically in late winter.
Snow Mold 2

Treatment Options

  • Fungicides: If your lawn is infected with a fungal disease, apply a fungicide according to the label instructions.
  • Cultural Practices: Improve your lawn’s overall health through proper watering, fertilization, and mowing practices.
By understanding common winter lawn diseases and taking proactive preventative measures, you can shield your lawn from potential damage. A well-maintained, healthy lawn is naturally more resilient to diseases, ensuring it remains lush and vibrant even during the colder months.

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