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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.

Georgia Department of Agriculture.

Georgia Department of Agriculture.

Nebraska Game and Parks Commission.
Nebraska Game and Parks Commission.
In 2016, Nebraska implemented an Aquatic Invasive Species Stamp to fund programs aimed at combating aquatic invasive species. Boaters who register their motorized watercraft in Nebraska will notice a $5 fee added to their three-year boater registration fee. Boaters who register their motorized watercraft in any other state will be required to obtain a $15 Aquatic Invasive Species Stamp each year that they boat in Nebraska. This stamp is available for purchase online. A temporary stamp may be purchased at some state parks and recreation areas.

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.

Vermont Department of Health.

State Agriculture and Health officials announced that the Asian Tiger mosquito (Aedes albopictus) has been identified for the first time in Vermont. This normally tropical/subtropical species is a known disease vector for Zika, chikungunya and dengue viruses, infecting humans in countries where these diseases are present. The mosquitoes found in Vermont do not currently carry these viruses. Natalie Kwit, public health veterinarian with the Vermont Department of Health, said that while the discovery of Aedes albopictus in the state is notable, Vermont's climate is currently inhospitable for the mosquito species for most of the year, making it unlikely they will be spreading new diseases here any time soon. "The diseases they can carry are not endemic to our area, and in fact are rarely found anywhere in the United States," said Kwit. For more information, visit Vermont's Mosquito Surveillance Program.

Georgia Forestry Commission.

Cogongrass, Imperata cylindrica (L.), is considered the seventh worst weed in the world and listed as a federal noxious weed by USDA Animal and Plant Health Inspection Service - Plant Protection and Quarantine. Cogongrass infestations are being found primarily in south Georgia but is capable of growing throughout the state. Join the cogongrass eradication team in Georgia and be a part of protecting our state's forest and wildlife habitat. Report a potential cogongrass sighting online or call your local GFC Forester.

Vermont Agency of Agriculture, Food, and Markets.
Virginia Department of Game and Inland Fisheries.
Vermont Agency of Natural Resources. Department of Forestry, Parks, and Recreation.
Firewood is widely recognized as a major source of non-native forest insect and disease infestations. A rule governing the importation of untreated firewood into Vermont went into effect on May 1, 2016. Visitors to Vermont State Parks, Vermont State Forests, and the Green Mountain National Forest may only bring firewood originating from Vermont or that is heat treated and in its original, labeled package. To help slow the spread of emerald ash borer within Vermont, ash firewood that has not been heat treated should not be moved outside of the Emerald Ash Borer Infested Area in Vermont.

Nebraska Department of Agriculture. Plant Industry.

Virginia Department of Agriculture and Consumer Services. Plant and Pest Services.
Virginia Department of Conservation and Recreation. Virginia State Parks.
Invasive insect pests and diseases are threatening the future forests of Virginia. The transport of firewood is one of the primary means by which these harmful insects and diseases spread. Quarantines have been issued by the Virginia Department of Agriculture and Consumer Services to restrict the movement of firewood from counties where the pests have been found to counties without them.
Tennessee Wildlife Resources Agency.
Virginia Department of Forestry.
Tennessee State Government.