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Invasive Species Resources

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Wisconsin Department of Agriculture, Trade, and Consumer Protection.
University of Wisconsin. Extension Lakes Program. Citizen Lake Monitoring Network.

Wisconsin Department of Natural Resources.

Virginia Tech; Virginia State University. Virginia Cooperative Extension.
Boxwood blight (also called "box blight" in Europe), caused by the fungal pathogen Cylindrocladium pseudonaviculatum (=C. buxicola), was found for the first time in the United States in North Carolina, Virginia and Connecticut in 2011. The first reported infestation in the U.S. was in a North Carolina nursery and the disease was introduced to Virginia on plants from that nursery. Spread outside the two Virginia locations, both of which are fields owned by a single nursery, has not been reported. However, growers should be aware of the symptoms of boxwood blight and monitor nursery and landscape boxwoods for symptoms.
University of Vermont. Forest Pathology.

Wisconsin Department of Natural Resources.

Wisconsin Department of Natural Resources.

Wisconsin Department of Natural Resources.

Wisconsin Department of Natural Resources.

Virginia Department of Game and Inland Fisheries.

Wisconsin Department of Natural Resources.

University of Kentucky. Cooperative Extension Service.
See also: Woody Ornamentals for more fact sheets.
North Carolina Department of Agriculture and Consumer Services. North Carolina Forest Service.
The emerald ash borer is a metallic green beetle that bores into ash trees feeding on tissues beneath the bark, ultimately killing the tree. It is not native to the United States and was first found in the U.S. near Detroit, Michigan in 2002. In 2013, the emerald ash borer was found in Granville, Person, Vance, and Warren counties in North Carolina. In 2015 it was found in many additional counties, and a statewide EAB quarantine went into effect in North Carolina.
University of Kentucky. College of Agriculture, Food, and Environment. Entomology.