The disease starts at the heartwood of a tree and attacks outward. Dutch elm disease (DED) primarily affects American and European species of elm. DED is a major problem throughout the range of ...

Ryan Murphy and Ben Held, co-investigators on the U’s disease-resistant elm selection and reintroduction program, want to ...

The leaf of an American elm tree. (Tamara Yakaboski ... In a natural native cycle, many of these insects rarely become problems as they are food for birds or predatory wasps.

American elm trees (Ulmus americana ... most of them are not truly resistant and may also be susceptible to other microbial tree diseases. Dr. William Powell, along with his colleagues and graduate ...

For decades, the American elm population has dwindled, and one of its greatest threats is the deadly Dutch elm disease, which has taken its toll on Brown’s campus, too. The tree removal ...

As soon as I saw the picture, I said I know that tree,” Brandon Wojcik, principal at North Collins Junior-Senior High School said. An old American Elm tree stood 75 feet tall in the middle of ...

An American elm tree that predates the Civil War was cut down this week. The tree has stood on the grounds of the First Presbyterian Church 1793 since the first church building was constructed in 1851 ...

The American elm features an open, spreading crown and drooping limbs that form a vase shape. American elm is a common tree in many riparian forest areas or moist soil forest areas. The species used ...

Technicians Oscar Ruiz and Sebastian Dominguez pump fungicide into the roots of an American elm tree in the 3200 block of West Palmer Boulevard. “I can see why the city wouldn’t want to treat ...

Nearly 30 years after it withstood the blast of a 4,000-pound bomb, the Survivor Tree—an American elm that became a symbol of resilience after the Oklahoma City bombing—continues to spread its ...