Laurel wilt is a deadly fungal disease that affects avocado trees. It is caused by the fungus _Raffaelea lauricola_ and is native to Asia. The fungus was first found in the United States in 2002 in Georgia, and has since spread to several other states, including Florida, South Carolina, North Carolina, and Mississippi.

Laurel wilt is spread by a tiny beetle called the redbay ambrosia beetle (_Xyleborus glabratus_). The beetles bore into the bark of laurel trees and lay their eggs. The fungus that causes laurel wilt grows on the surface of the beetles' bodies, and is spread to new trees when the beetles bore into them.

Laurel wilt is a serious threat to avocado trees because the fungus can cause them to wilt and die within a few weeks. There is no cure for laurel wilt, and once a tree is infected, there is nothing that can be done to save it.

In order to prevent the spread of laurel wilt, it is important to take steps to control the redbay ambrosia beetle. This can be done by:

* Removing any laurel or sassafras trees that are infested with the beetles.

* Using pesticides to kill the beetles.

* Placing sticky traps around avocado trees to catch the beetles.

By taking these steps, we can help to protect our avocado trees from this deadly disease.

Here are some additional tips for preventing the spread of laurel wilt:

* Do not transport any firewood or other plant material from areas where laurel wilt is present.

* Inspect your avocado trees regularly for signs of laurel wilt, such as wilting leaves or branches, or dead leaves that remain on the tree for 2 weeks or more.

* If you find signs of laurel wilt, contact your local agricultural extension office immediately.