Fortunately, cicadas are harmless to humans. At most, the noise they make could become a nuisance.
“I hope that any trouble with the disturbance is tempered by the rarity – and the incredible – of this event.”
However, they are a danger to orchids, vines and trees due to the nesting habits of its females.
“Cicadas can occur in overwhelming numbers and growers in the intended fields of activity should be alert,” said Doug Pfeiffer, professor and extension specialist in the entomology department at Virginia Tech.
Cicadas are large, cut-winged insects that occur either annually or periodically. It is a mystery to know why periodic cicadas appear only every 13 or 17 years, but it has been theorized that it is to avoid synchronizing with the cycles of predators.