Lawn Fungus & Brown Patch Treatment
Protect your fescue lawn from brown patch, dollar spot, and other fungal diseases that thrive in Middle Tennessee's hot, humid summers. Our UT Certified team provides preventive and curative fungicide treatments.
Lawn fungus is one of the most destructive and misunderstood problems facing Middle Tennessee homeowners. Brown patch (Rhizoctonia solani) is by far the most common fungal disease in the region, creating large circular patches of dead or dying grass that can devastate a fescue lawn in a matter of days during hot, humid weather. Dollar spot, pythium blight, and gray leaf spot also affect lawns throughout the I-65 corridor, particularly in areas with poor air circulation or excessive irrigation.
The key to effective fungus management is understanding that most fungal diseases in Middle Tennessee are driven by environmental conditions, not poor lawn care. When nighttime temperatures stay above 65°F and humidity remains high — conditions that are common from June through September in Maury and Williamson counties — brown patch becomes almost inevitable in fescue lawns without preventive treatment. Our fungicide program targets these high-risk periods with professionally timed applications.
Mr. Lawn Care offers both preventive and curative fungicide treatments. Preventive applications, applied before disease symptoms appear, create a protective barrier on grass blades that stops fungal spores from penetrating the plant. Curative applications treat active infections and stop the spread of disease. For lawns with a history of brown patch, we recommend a preventive program that begins in late May before the first summer heat wave.
Why This Matters in Middle Tennessee
Middle Tennessee's combination of hot summers, high humidity, and cool-season fescue grass creates a perfect storm for fungal diseases. Brown patch thrives when nighttime temperatures exceed 65°F with extended leaf wetness — conditions that occur regularly from June through September in the I-65 corridor. The region's clay soils also retain moisture, extending the wet conditions that fungi need to spread.
What's Included
- ✓Preventive fungicide applications before high-risk periods
- ✓Curative treatments for active fungal infections
- ✓Disease identification and diagnosis
- ✓Cultural practice recommendations (mowing height, watering schedule)
- ✓Follow-up monitoring after treatment
- ✓Seasonal disease risk assessment
Fungus Treatment Across Middle Tennessee
We provide lawn fungus & brown patch treatment throughout the I-65 corridor. Select your town for location-specific information:
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Fungus Treatment FAQ
What does brown patch look like in a fescue lawn?
Brown patch typically appears as circular patches of tan or brown grass ranging from 6 inches to several feet in diameter. The edges of the patches often have a darker "smoke ring" border, especially visible in early morning when dew is present. Individual grass blades will show tan lesions with dark brown borders.
When is brown patch most active in Middle Tennessee?
Brown patch is most active from June through September when nighttime temperatures consistently stay above 65°F. The disease is most aggressive during periods of high humidity combined with warm nights, which is common throughout the Middle Tennessee summer.
Can brown patch kill my entire lawn?
Brown patch rarely kills fescue grass completely because it primarily attacks the leaf blades rather than the crown and root system. However, severe or repeated infections can thin the lawn significantly, creating opportunities for weed invasion. Preventive treatment is far more effective and less expensive than trying to recover from severe damage.
How do I prevent lawn fungus in Middle Tennessee?
Prevention involves a combination of cultural practices and fungicide applications. Mow at 3.5 to 4 inches, water deeply but infrequently in the morning only, avoid excessive nitrogen fertilization in summer, and apply preventive fungicide before the high-risk period begins in late May or early June.
Is lawn fungus treatment safe for pets?
Professional fungicide products are safe for pets once they have dried on the grass, typically within 2 to 4 hours of application. We recommend keeping pets off treated areas until the product has fully dried.
Ready for Professional Fungus Treatment?
Get a free quote for lawn fungus & brown patch treatment from our UT Certified team. We serve the entire I-65 corridor from Pulaski to Belle Meade.