Dave Apsley, natural resources specialist with CFAES’s outreach arm, OSU Extension, presents “Ohio’s Eastern Hemlock Forests and the Threat of Hemlock Woolly Adelgid” at 7:30 p.m. Thursday, March 2, in Ashland University’s 2016-17 Environmental Lecture Series. Details. (Photo: Eastern hemlock, Bill Cook, Michigan State University, Bugwood.org.)