WHERE HAS THE EMERALD ASH BORER SPREAD? HOW MANY STATES IS IT IN? The Emerald Ash Borer has been confirmed as of October 1, 2013, in the following 21 states in alphabetical order: Colorado, Connecticut, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New York, Ohio, Pennsylvania, Tennessee, Virginia, Wisconsin,… Read more »