Rachelle Frosch, from the Morton Arboretum provides a step-by-step demonstration Tuesday, April 30, 2024 in Lisle on how people can net their young or unhealthy trees and shrubs before the mass cicada emergence. The trees will be covered in tulle, which is the same fabric that is used to make ballerinaÕs tutus. Hundreds of young and vulnerable trees will be covered in fine-mesh netting at The Morton Arboretum over several days to protect them from the imminent cicada emergence. (Brian Hill/bhill@dailyherald.com/Brian Hill/bhill@dailyherald.com)