Why is Oak Wilt Treatment Important?
Oak wilt is a deadly tree disease that spreads quickly through root systems, especially among red oaks and live oaks. Treating oak wilt early with systemic fungicide injections is critical to protect healthy trees and slow the spread of infection.
Preventative oak wilt treatment offers the highest success rates – up to 85%–90% – when applied before symptoms appear. While therapeutic treatments (after symptoms are visible) may help reduce further decline, their effectiveness is typically lower and depends on the tree’s overall health and condition at the time of treatment.
Tracking the tree’s response after treatment is valuable for assessing long-term success and monitoring for any signs of further oak wilt progression.
What is the Best Method for Treating Oak Wilt?
The most effective and recommended method for oak wilt treatment is macro-injection. This process is endorsed by the Texas A&M Forest Service and involves:
- Excavating the tree’s flare root
- Drilling and placing injection tees around the root flare
- Injecting fungicide using low-pressure containers to ensure even distribution
We use Alamo®, the industry-standard fungicide for oak wilt, and dose trees based on their DBH (diameter at breast height).
Important Considerations:
Some adjustments to dosage may be necessary for damaged trees.
Trees with canopy loss or poor health may not fully absorb the fungicide.
Uptake can be affected by various factors, including tree stress, disease progression, or incorrect DBH-to-canopy ratios.
Which Trees Should Be Treated for Oak Wilt?
Preventative oak wilt injections offer the best protection and should be prioritized for:
- Healthy oak trees within 100 feet of an infected tree
- High-value oaks not yet showing symptoms
- Trees in oak wilt-prone areas or near known outbreaks
Trees already showing symptoms may still benefit from therapeutic oak wilt treatment, particularly if they are of high value. However, the success rate is lower, and outcomes depend on how advanced the infection is.
At Oak Wilt Pros, we specialize in identifying, treating, and preventing the spread of oak wilt across Central Texas. With years of experience and proven techniques, we provide customized solutions to protect and preserve your oak trees. From diagnosis to recovery, we’re here to ensure your trees stay healthy and strong for generations. Contact us if you have concerns about the health of your trees, or if you have any questions about oak wilt treatment and prevention.
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