2-3 p.m. at Lyonia Environmental Center, 2150 Eustace Ave., Deltona. Florida is home to more invasive plants and animals than any other state. Staff will discuss some of the more common species, how they affect ecosystems, and what to do if you see them. This program is recommended for age 7 and up. Free. Reservations are required; call 386-789-7207, ext. 21028, or visit https://tinyurl.com/lec-event.