An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Provides access to all site resources, with the option to search by species common and scientific names. Resources can be filtered by Subject, Resource Type, Location, or Source. Search Help
Oak wilt is a fungal disease of oaks that can rapidly kill susceptible species (particularly red oaks). The origin and means of the introduction of oak wilt are unknown. The disease was first discovered in 1942 and is currently only found in the U.S., but it may have originated in Mexico, Central America, or South America.