Emerging threats in Tennesse are insects, diseases, and plants that have been detected in Tennessee but are not a common issue in the state, or that have not yet been detected in Tennessee but may eventually make their way to the state. However, we actively monitor for these issue and encourage residents to report potential sightings.
Sudden Oak Death
Sudden oak death is caused by a water mold (Phytophthora ramorum) that threatens the vast oak forests of the eastern United States. The disease causes girdling cankers on the main stem and large branches which coalesce to eventually kill the entire tree. Sudden oak death (which is not very sudden) is responsible for killing millions of oaks in the western states.
Spotted lanternfly (Lycorma delicatula) is an invasive plant hopper with forewings which are light brown transitioning from black spots at the front to a speckled band near the rear, while hindwings are scarlet with black spots. This sapsucking insect prefers tree of heaven however is a threat to a host of tree species.