Cornville, Maine — University of Maine Cooperative Extension will offer an Integrated Disease and Weed Management in Christmas Tree Production course on Friday, June 14, 2024, from 3 – 6:30 p.m. at Quinn’s Tree Farm, 290 West Ridge Road in Cornville. Participants will learn how to apply crop protectants using backpack sprayers safely and efficiently. read more Extension offers disease and weed management workshop for Christmas tree growers