"Watch List" TrainingAsian Longhorned Beetle
Member of the Longhorn Beetle (Cerambycidae) family. They made their way to the United States around 1996 in untreated wooden packing crates from China. Since being discovered, the beetle's current distribution includes areas of NYC, Illinois, Massachusetts, New Jersey and most recently, Ohio.
Asiatic Sand Sedge
Perennial, stout , coarse plant that is a member of the Sedge (Cyperaceae) family. First observed in the United States, at Island Beach, New Jersey in 1929. Later planted for dune stability, trampling resistance and disease and fungal resistance.
Balsam Woolly Adelgid
Member of the Adelgid (Adelgidae) family. Introduced to North America from Europe around 1900 and first noticed in Maine in 1908. It later appeared on the West Coast and Southeastern United States in the mid 1950's. Infested nursery stock is the presumed source of introduction.
Bighead Carp
Member of the Minnow (Cyprinidae) family. Introduced to the United States in Arkansas to control algae in southern aquaculture ponds and escaped into the Mississippi River in the 1970s.
Black Carp
Member of the Minnow (Cyprinidae) family. Imported for snail control in catfish farms in the early 1970s; escaped in Missouri in 1994 when holding ponds flooded. Still used by fish farmers to control snails that host a catfish parasite.
Brazilian Elodea
Aquatic, submergent, rooted plant that is a member of the Tape-grass (Hydrocharitaceae) family. Most easily surveyed in summer and fall, when its flowers, which distinguish it from other Elodea species and Hydrilla, are present. This species is listed on the Michigan prohibited aquatic plant list.
Chinese Yam
Deciduous, creeping and climbing perennial vine that is a member of the Yam (Dioscoreaceae) family. Economically valued as a food plant and is used as a traditional Chinese medicine.
European Frog-Bit
Perennial, free-floating aquatic herb that is a member of the Tape-grass (Hydrocharitaceae) family. Most plants are dioecious and many populations consist of only one sex. In mixed populations, most plants are male and little seed is produced. This species is listed as a prohibited noxious weed by the Michigan Department of Agriculture.
European Waterclover
Aquatic, rooted fern that is a member of the Water Clover (Marsileaceae) family. Available as a water garden and aquarium plant.
Grass Carp
Member of the Minnow (Cyprinidae) family. First introduced in the United States in Arkansas in 1600s and has since spread to 34 states.