DELAWARE, Ohio (WCMH) – An invasive insect that leaves a pattern on elm tree leaves was detected in Ohio for the first time this summer. Officials found a population of elm zigzag sawflies at the U.S.

As emerald ash borer (EAB) infestation continues its march across the continent, Don Kinzler shares the distinctive identifying characteristics of an ash tree.

A Japanese plant species with a peculiar leaf pattern recently revealed unexpected insight into how almost all plants control their leaf arrangement. Leaves can be enjoyed for their shade, autumn ...