3rd Annual Roots to Shoots tree program: University of Florida Extension agents, staff and O’Neil’s Tree Service will demonstrate canopy cleaning, lifting, structural pruning, tree climbing techniques and safety. Classroom topics will include safety, tree roots and creating a wind-resistant urban forest. 9 a.m. to 4 p.m. Cost is $30; free to employees of Pinellas County, the Pinellas County School Board and Pinellas County Master Gardener Volunteers (must have ID on day of class). Advance registration required. Pinellas County Extension, 12520 Ulmerton Road in Largo. (727) 582-2562; register at http://pce-commercialhort.eventbrite.com.