Luckily, cicadas are harmless to humans. At most, the noise they make could become a nuisance.
“Hopefully, any annoyance at the disturbance is tempered by just how infrequent — and amazing — this event is.”
However, they are a danger to orchids, vines and trees due to the egg-laying habits of its females.
“Cicadas can occur in overwhelming numbers and growers in predicted areas of activity should be watchful,” said Doug Pfeiffer, a professor and extension specialist in Virginia Tech’s Department of Entomology.
Cicadas are large, cleared-winged insects that occur either annually or periodically. It’s a mystery as to why periodical cicadas only emerge every 13 or 17 years, but it’s been theorized that it’s to avoid syncing up with predator cycles.