After 17 years underground, vast armies of cicadas and their “alien-like wail” are set to emerge in Virginia, West Virginia and North Carolina.
Virginia Tech compares the cacophony caused by the insects to “a field of out-of-tune car radios,” noting that the cicadas will again be making their noisy presence felt. The cicadas are part of what is known as brood IX.
“This year, that alien-like wail of the insect world will be even more pronounced, as millions of cicadas from brood IX emerge after 17 years underground,” wrote Virginia Tech in a statement.
The National Institutes of Health notes that cicadas can make as much noise as a motorcycle. “Male cicadas use drum-like structures on their abdomen called tymbals to create a loud, high-pitched buzz to attract female companions, who respond with a quick flick of their wings together,” it explains on its website. “This mating call and response, which sounds to some like the whining of electrical wires rising and falling, can reach over 90 decibels.”
Users on social media have already posted about their recent encounters with the noisy creatures.
Turn your volume up and you can easily hear the #cicadas in Pittyslanvia County,” tweeted @geo_brady, a Geographic Information Systems analyst in southern Virginia.
“So many cicadas -- all up in my marshmallow plant,” tweeted @gustin.
“The scale of these emergence events is astounding, with as many as 1.5 million cicadas emerging per acre,” explained Virginia Tech in a statement. “Each periodical cicada brood covers a specific geographical region, with some areas overlapping.”
The natural phenomenon will span southwest Virginia, parts of North Carolina, and West Virginia, according to the university. Experts warn that the cicadas’ egg-laying habits can pose a risk to orchards, vineyards and ornamental trees.
“Cicadas can occur in overwhelming numbers and growers in predicted areas of activity should be watchful,” said Virginia Tech professor Doug Pfeiffer in the statement.
“Brood IX is interesting to researchers because it’s located very close to 5 other broods,” explains the Cicada Mania website.
Part of the region covered by brood IX, for example, overlaps with brood II, which emerged in 2013, according to Virginia Tech.
Other broods are also attracting interest. The Magic Cicada website reports that the 13-year-periodical cicada brood XIX, also known as the Great Southern Brood, is expected to emerge in 2024, but “significant numbers” appear to be emerging four years early.
Virginia Tech describes the timing of the 13- or 17-year brood cycles as one of the great mysteries of the insect world.
“Research and mathematical modeling suggest that the length of these brood cycles could be attributed to predatory avoidance,” it says in the statement. “When the cicadas emerge, the amount of biomass they provide could serve as a food source for potential predators to take advantage of. It is theorized that these cicadas have evolved to avoid synching up with predator cycles by having a 13- or 17-year prime number emergence interval.”
“In a normal year, researchers would be able to drive the roads of the area and map the location of the brood so we can get data as to where the broods intersect, but because of the current situation in the U.S., most if not all researchers will be able to travel — so we need you to let us know where they’re at,” it said.
Fox News’ Travis Fedschun contributed to this article. Follow James Rogers on Twitter @jamesjrogers