Oak Wilt is a deadly disease that kills thousands of oak trees in Central Texas. The disease is spread underground through the roots of infected trees and by beetles carrying spores of the fungus to fresh wounds on oak trees.
Wounding includes but is not limited to: pruning, construction activities, animal damage, land-clearing, lawnmower or string trimmer damage, and storm damage.
Oak wilt spores and increased beetle activity occur in spring; therefore avoid pruning or wounding oaks during this most vulnerable time. Fresh wounds produce sap which in turn attract sap-feeding beetles; therefore apply paint to pruning cuts or other wounds immediately to prevent spore-carrying beetles from visiting your oak. Any type of paint will accomplish this task. These recommendations apply only to oaks as only oaks are susceptible to oak wilt (Only You Can Prevent Oak Wilt, Robert Edmonson, Texas Forest Service, 2009.)
The City of New Braunfels, Texas Tree Ordinance states in Article IV. Section 134-64 (a) It shall be unlawful for any person, corporation or governmental agency to recklessly (1) Cut or wound any oak tree without administering a protective compound after the cut or wound is made.
Section 134-66 penalizes persons engaged in oak tree cutting or oak tree wounding not following oak wilt prevention measures. Violations of any provision in this article shall be a misdemeanor and they shall be punished upon conviction, by a fine not less than $150 dollars and not more than $500 dollars.
The Texas Forest Service, in addition to the City of New Braunfels Urban Forester, recommends:
- Avoid pruning or wounding oaks February through June
- Immediately paint wounds or cuts on oaks regardless of season.
Please review the Texas Forest Service website www.texasoakwilt.org Oak Wilt in Texas section for more detailed information.
Contact the City Urban Forester, (Kelly Eby at 830-221-4359) County Extension office, or Regional Forester with the Texas Forest Service if you detect any oak trees exhibiting signs of oak wilt.