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Brown patch fungus is a common problem for lawns, especially in regions with warm, humid climates like Southwest Florida. While it is primarily known for targeting grasses and landscapes, this persistent fungus can also affect trees if left unchecked. In this blog, we will explore what brown patch fungus is, its signs and symptoms, how it affects trees in SW Florida, and how Coastline Tree Service can help you protect your landscape.

What is Brown Patch Fungus?

Brown patch fungus, scientifically known as Rhizoctonia solani, is a fungal disease that typically attacks cool-season grasses during hot, humid weather conditions. This pathogen thrives in temperatures between 65°F and 85°F and can spread rapidly through water, soil, and plant debris. Though it predominantly affects turfgrass, the fungus can also pose a threat to trees in your landscape if not properly managed.

Signs and Symptoms of Brown Patch Fungus

Identifying brown patch fungus early is crucial to prevent widespread damage. Here are some common signs and symptoms to look out for:

On Lawns:

• Circular Brown Patches: Circular patches of brown or yellowish grass, ranging from a few inches to several feet in diameter.
• Darkened Grass Blades: Grass blades may appear water-soaked, dark, and wilted before turning brown.
• Leaf Spots: Dark, irregular spots on grass blades, often with a purplish hue around the edges.

On Trees:

• Discolored Leaves: Leaves may show signs of yellowing or browning, resembling sunscald or drought stress.
• Wilting Foliage: Foliage may wilt and drop prematurely.
• Cankers: Sunken, dark lesions may develop on branches and trunks, indicating fungal invasion.
• Stunted Growth: Trees affected by brown patch fungus may exhibit stunted growth and reduced vigor.

How It Affects SW Florida Tree Landscapes

In Southwest Florida, the warm and humid climate creates an ideal environment for brown patch fungus to thrive. When the fungus spreads from lawns to trees, it can significantly impact their health and aesthetics. The trees most susceptible to brown patch fungus include young saplings and stressed trees with compromised immune systems.

The fungus can weaken the tree’s structural integrity, making it more vulnerable to other diseases and pests. Additionally, the aesthetic appeal of your landscape may suffer due to discolored leaves, wilting foliage, and stunted growth.

Treatment and Prevention

Managing brown patch fungus requires an integrated approach that includes both treatment and preventive measures. Here’s how you can address this issue effectively:

Treatment:

1. Fungicide Application: Apply fungicides specifically formulated to target Rhizoctonia solani. Consult with our certified arborist to choose the right product and ensure safe application.
2. Pruning and Sanitation: Remove and dispose of affected plant material, including fallen leaves and grass clippings, to reduce fungal spores in the area.
3. Irrigation Management: Adjust your watering schedule to avoid excessive moisture on the lawn and around tree roots. Water early in the morning to allow foliage to dry out during the day.

Prevention:

1. Proper Lawn Care: Maintain healthy turfgrass by mowing at the recommended height, aerating the soil, and fertilizing appropriately.
2. Tree Health Maintenance: Ensure trees receive adequate nutrients, water, and support to strengthen their immune systems. Mulch around the base of trees to retain moisture and regulate soil temperature.
3. Regular Inspections: Conduct regular inspections of your landscape to detect early signs of brown patch fungus and other potential issues.

How Coastline Tree Service Can Help

At Coastline Tree Service, our team of experienced arborists is dedicated to protecting your landscape from threats like brown patch fungus. Our comprehensive services include:

• Expert Diagnosis: Our certified arborists can accurately diagnose brown patch fungus and other tree diseases.
• Customized Treatment Plans: We develop tailored treatment plans that address the specific needs of your landscape.
• Preventive Care: From proper pruning techniques to soil health management, we implement preventive measures to keep your trees and lawn healthy.
• Ongoing Maintenance: Regular maintenance and monitoring ensure early detection and prompt treatment of any emerging issues.

Don’t let brown patch fungus compromise the beauty and health of your Southwest Florida landscape. Contact Coastline Tree Service today to schedule an inspection and learn more about our tree care services & solutions. 

We proudly serve and offer Tree Services in Naples, Marco Island, Bonita Springs, Estero, Fort Myers, Fort Myers Beach, North Fort Myers, Cape Coral, Sanibel & Punta Gorda.

Give us a Call at: (239) 895-3230  or contact us online at: https://www.coastlinetree.com/contact-us/.  Contact us today to learn more about how we can support your HOA in maintaining a vibrant and healthy landscape.