Oak Wilt, one of the most destructive tree diseases in the United States, is killing oak trees in central and west Texas at epidemic proportions. According to Johnathan Davis of Arborlogical Inc., Lubbock is starting to see the devastating effects of this disease.
“Oak Wilt is caused by a fungus called Ceratocystis fagacearum,” Davis said. “It can be spread by insects, or sometimes by man. The fungal mats and spores can survive and be transported on cut wood, like firewood. It can even be transmitted through interconnected roots of multiple trees.”
On live Oaks, dark green, yellow or brown discoloration of leaf veins can indicate infection.
“On Red Oaks, look for wilting or discolored leaves that remain attached to the tree, or spore producing fungal mats at the base of the tree or behind loose bark,” Davis explained.
There are three primary approaches in properly managing Oak Wilt and its spread, and successful control usually depends on effectively incorporating them into an overall treatment plan.
“First, you would want to eliminate any diseased trees and paint any wounds on healthy trees,” Davis explained. “The next step would involve trenching or other measures to disrupt root connections. Finally, injections of fungicide to help reduce crown loss and maybe extend the life of the tree.”
Davis says these measures will not cure Oak Wilt, but can significantly reduce tree losses.
“This disease can devastate your trees and your landscaping. I encourage people to call us and let us evaluate their trees before it is too late.”
Arborlogical Inc. is a turf and tree care company, founded in 2000 by Texas Tech Alum Kelley Sims, that serves the entire Texas Panhandle and South Plains. Arborlogical Inc. is accredited by the Tree Care Industry Association, and staffs two ISA Certified Arborists, a degreed Forrester, a TCEQ Licensed Irrigator, two Licensed Chemical Applicators, and one of fewer than 20 Board Certified Master Arborists in the state of Texas. Visit arborlogicalinc.com or call 844-TXARBOR for more information.
(Press release from Arborlogical Inc.)
