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Why are there brown spots on my lawn?

Maintaining a lush and healthy lawn throughout the summer months is a top priority for any homeowner in Virginia. One of the primary challenges is dealing with diseases that can affect the beauty and vitality of your tall fescue turf. As your trusted lawn care partner, Sorensen Outdoor Services is here to help you identify these diseases early on so that you can take swift action and keep your lawn looking its best. In this blog post, we'll walk you through the key steps to identify disease in your tall fescue lawn.

1. Understand the Common Diseases:

Before you can identify diseases in your tall fescue lawn, it's essential to familiarize yourself with the common culprits in our area - Climate Zone 7a. Diseases like Brown Patch, Dollar Spot, Red Thread, Rust, and Pythium Blight are frequent visitors in this region. Research and educate yourself about their symptoms, so you can spot them quickly if they arise.

2. Check for Irregular Patches:

Healthy tall fescue lawns generally have a uniform appearance. Disease outbreaks often lead to irregular patches or spots that differ in color and texture from the rest of the lawn. Keep an eye out for areas that exhibit unusual discoloration, such as brown or straw-colored patches.

3. Look for Distinct Patterns:

Certain diseases, like Dollar Spot and Brown Patch, tend to form patterns in the lawn. Dollar Spot creates small, silver-dollar-sized spots, while Brown Patch typically forms circular patches. Pay close attention to these distinct patterns, as they can be indicative of specific diseases.

4. Examine Grass Blades:

Take a closer look at the blades of the grass in your tall fescue lawn. Some diseases manifest as visible changes on the blades. For example, Rust appears as reddish-brown pustules, while Red Thread exhibits pink or red threads extending from the leaf tips.

5. Assess Environmental Conditions:

Weather and environmental factors play a significant role in disease development. Hot and humid conditions can favor diseases like Pythium Blight, while extended periods of moisture promote fungal growth. Consider recent weather patterns and how they might impact your lawn's health.

6. Seek Professional Advice:

If you're uncertain about the symptoms you observe or are unable to identify the disease accurately, don't hesitate to reach out to us. Our team is well-versed in diagnosing and treating diseases in tall fescue lawns. Early detection and intervention can make a significant difference in saving your lawn from further damage.

If you have any questions, we are always here to help. Shoot us an email at or give us a call at 540-845-6203.


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