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Oak Wilt Management
Injury caused by bark feeding insects is one of the most common ways disease enters a tree. Oak Wilt is an especially insidious disease that is easily transmitted and can kill a tree in a single growing season. It affects mostly Live Oaks and Red Oaks. Caused by the spores of a fungus, it is carried from tree to tree by small beetles that feed on that fungus. It can also be introduced to a healthy tree by using non-sterilized tools that were previously used on an infected tree. A rapid yellowing of the outer leaves near the top in mid-late spring is an indicator of this disease. The yellowing will spread throughout the entire canopy, with the tree quickly dropping its leaves. Diagnosis by a Texas Oak Wilt Certified Arborist is critical as successful treatment depends on early diagnosis of all infected trees within an area. It does little good to treat only one tree.
The spread of Oak Wilt disease is minimized by the pruning technician using a special mixture to seal wounds and by sterilizing the tools with alcohol before moving on to the next tree. To stay abreast of the latest research, Preservation Tree arborists complete continuing education courses to be designated as Texas Oak Wilt Certified.
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