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Invasive Species Resources

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Tennessee Department of Agriculture.

The Tennessee Department of Agriculture (TDA) is advising forest landowners to monitor their sassafras trees after detecting new cases of laurel wilt disease in Robertson and Hamblen Counties. In the last quarter of 2019, the disease was detected in trees in Montgomery, Cheatham, Dickson and Williamson Counties. "These new detections of this invasive disease show a significant geographic jump across the state," State Forester David Arnold said. "This is yet another unfortunate example of an invasive pest impacting our forests. Landowners should take caution to prevent the spread of this disease if detected on their property."

Laurel wilt is a fungal disease caused by an invasive pathogen, Raffaelea lauricola, which can affect a range of plants, including sassafras and spicebush in Tennessee. Choked of water, trees wilt and die within a few weeks or months. Currently, no treatment has been developed that can cure laurel wilt disease or protect trees from infection. The best way to prevent the spread of laurel wilt is to avoid movement of firewood or other untreated timber. Tennesseans are urged to monitor their sassafras trees for browning of leaves, leaf loss, and staining in the inner bark. If you suspect your trees might have laurel wilt disease, contact Forest Health Program Specialist Sam Gildiner at 615-837-5439 or sam.gildiner@tn.gov. TDA Division of Forestry staff will assist in identifying the disease and recommending management actions, if appropriate.

Tennessee Department of Agriculture.

Three Tennessee counties have been quarantined for Emerald Ash Borer (EAB) after detection of the forest-devastating insect, bringing the total number of Tennessee counties under a state and federal EAB quarantine to 62. Cheatham, Giles, and Maury counties have been added to the list of areas restricted for the movement of firewood, ash nursery stock, ash timber, and other material that can spread EAB. The tree-killing beetle was recently found in these three counties through the United States Department of Agriculture’s EAB detection program.

Tennessee Department of Agriculture.

North Dakota Department of Agriculture.

Utah Department of Agriculture and Food.

Maryland Department of Natural Resources.

Tennessee Wildlife Resources Agency.

The TWRA needs your help in collecting invasive carp. If you catch a small carp, nine inches or less, the agency is asking that you put it on ice or freeze it and contact them immediately. If you are unable to keep the fish, the TWRA asks you to submit photos of the fish in hand and send it to them. You can contact the TWRA by phone at 731-423-5725 or toll-free at 1-800-372-3928, by fax at 731-423-6483, or by email at ans.twra@tn.gov.

University of Tennessee. Institute of Agriculture.

See also: Beef and Forage Center - Health for more resources 

University of Tennessee Extension.
See also: Entomology and Plant Pathology - Publications and Multimedia Catalog for more resources
University of Kentucky. Cooperative Extension Service.
See also: Woody Ornamentals for more fact sheets.
North Dakota State University Agriculture and University Extension.
Colorado Department of Agriculture. Division of Plant Industry.
Emerald Ash Borer (EAB) was found in Boulder, CO, in September 2013. As a non-native insect, EAB lacks predators to keep it in check. EAB only attacks ash trees in the genus Fraxinus (so mountain ash are not susceptible). EAB is responsible for the death of millions of ash trees in the Midwest. Help protect Colorado's ash trees! Don't move firewood, and consider chemical treatments to protect high-value ash trees.
Maryland Department of Agriculture.
University of Kentucky. College of Agriculture, Food, and Environment. Entomology.
University of Tennessee. Institute of Agriculture.

University of Maryland Extension.

See also: Pest Threats for more fact sheets

Colorado Parks and Wildlife.

All known feral swine have been eliminated from Colorado thanks to a near 15-year state and federal partnership comprised of the U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) Wildlife Services (WS), the USDA Forest Service (FS), Colorado Parks and Wildlife (CPW) and the Colorado Department of Agriculture (CDA). The partnership formed in the early 2000s as a task force to manage invasive feral swine, which root up crops and pastures causing billions in damage nationwide each year. Feral swine also spread disease to livestock, wildlife and humans. Ground-nesting birds and other wildlife are easy prey for feral swine. And the swine put native wildlife at risk by competing for resources and destroying habitats and ecosystems. 

You can help keep Colorado free of feral swine:

  • Spread the word that in Colorado it’s illegal to possess, transport or release feral swine, wild swine species or hybrids.
  • Report sightings of feral swine or transportation activities to USDA Wildlife Services at 1-866-4-USDA-WS (1-866-487-3297) or Colorado Parks and Wildlife at 303-297-1192.
  • Get more information at the National Feral Swine Damage Management Program.