What Are Invasive Species?
Invasive species, such as feral swine, stilt grass and the emerald ash borer, damage forests, grasslands, marshes and farmlands. They may also cause harm to humans. Invasive species are non-native weeds, insect pests and other organisms introduced intentionally or accidentally by people who move them from their native range.
In the United States, economists estimate that more than $120 billion are lost annually to damages associated with invasive species. Invasive species threaten native plants and animals and their habitat in forests, marshes, and other natural areas.
GIANT HOGWEED DISCOVERED IN A HOME GARDEN - June 2018
Giant hogweed (Heracleum mantegazzianum) was recently discovered in a home garden in Clarke County, Virginia. Giant hogweed is listed in Virginia as a Tier 1 Noxious Weed. However, the plants found in the home garden were intentionally planted long ago. In Virginia, the species has NOT been found as a naturalized species spreading across the landscape. Learn more here >>
NEW INVASIVE INSECT ALERT!!! - February 2018
Recently discovered in Virginia, spotted lanterfly (Lycorma delicatula), attacks grapes, peaches, hops and many tree species. Learn more here >>