articleThe Brief New York DEC has identified multiple terrestrial invasive species of concern. What we know:The DEC tracks terrestrial invasive species that pose the highest risks to New York’s environment. Emerald ash borer — An invasive beetle from Asia that feeds on all native ash trees. (Andy Lavalley/Post-Tribune/Tribune News Service via Getty Images)Why you should care:Left unchecked, invasive species cost New York millions in tree loss, reduced crop yields and ecological disruption. DEC urges New Yorkers to help by reporting sightings, avoiding the movement of firewood and being careful not to spread invasive plants and insects.