Ohio Department of Agriculture to host an information session on its efforts to keep the gypsy moth under wraps in 2013 at the OSU Extension in Delaware County on February 13 at 6 p.m. [photo from <a href="http://www.agri.ohio.gov/]Gypsy">http://www.agri.ohio.gov/]Gypsy</a> moths are invasive insects that attack more than 300 different types of trees and shrubs, with oak being the preferred species.