With the cicada emergence approaching, homeowners across the region are asking the same question: will these insects harm my lawn and garden? The short answer is nuanced — periodical cicadas are largely harmless to established lawns, but they can cause noticeable damage to young trees and shrubs.
Understanding Cicada Behavior — Periodical cicadas spend most of their lives underground as nymphs, feeding on tree root fluids. When they emerge, female cicadas use a saw-like ovipositor to cut slits in small branches to deposit their eggs.
Protecting Your Landscape — Drape fine mesh netting over young trees and shrubs. Delay planting new trees until after cicadas have died off.
The Silver Lining — Cicadas actually benefit your lawn. Their emerging nymphs aerate the soil, and their decomposing bodies provide a natural nitrogen boost.