Northeast Braces for Invasion of Giant, Venomous, Parachuting Joro Spider

joro spider heading to New York CityPhoto bygraphic by miss knockout

source credit: CBS news https://www.cbsnews.com/news/joro-spiders-new-york-giant-venomous-spiders-spread-east-coast/

First came the spotted lanternflies, then the cicadas — and now, the spiders? The Northeast U.S. is bracing for an invasion of giant venomous spiders with 4-inch-long legs that can parachute through the air.

Earlier this year, New Jersey Pest Control warned of the incoming spiders, saying Joro spiders will be "hard to miss" as females have a leg span of up to 4 inches and are known for their vibrant yellow and grey bodies. These spiders are visually striking and their presence is sure to be noticed by residents. The Joro spider, native to Asia, was first introduced to north Georgia around 2010. Since then, they have spread steadily across the southeastern United States.

"What sets them apart, however, is their ability to fly, a trait uncommon among spiders," the pest control company said. "While not accurate flight in the avian sense, Joro spiders utilize a technique known as ballooning, where they release silk threads into the air, allowing them to be carried by the wind." This method of locomotion allows the spiders to travel significant distances, spreading their reach far and wide.

A peer-reviewed study published last October by invasive species expert David Coyle found that the invasive species is "here to stay." The study noted that these arachnids are adaptable to various environments found in the U.S. and their spread is expected to continue. Joro spiders have been sighted in numerous states across the eastern U.S., including Florida, Alabama, Mississippi, the Carolinas, Tennessee, Kentucky, Virginia, West Virginia, Maryland, and Ohio.

"They seem to be OK with living in a city," Davis added, noting that Joro spiders have been found on street lamps and telephone poles, locations where "regular spiders wouldn't be caught dead in." This adaptability suggests that urban environments will not deter their spread.

The Joro spider’s arrival in the Northeast has understandably caused concern among residents, particularly those who are not fond of creepy crawlies. "Anyone that doesn't sort of like all the creepy crawly things, this has all of the characteristics that makes them squeamish," Coyle previously told CBS News. Despite their intimidating appearance and the public's fear, Coyle reassures that Joro spiders do not pose a danger to humans. Their venom is used primarily to subdue their prey, which includes butterflies, wasps, and cockroaches.

"We have no evidence that they've done any damage to a person or a pet," Coyle emphasized. However, their presence could pose a threat to native spider populations, potentially disrupting local ecosystems.

As the Joro spiders continue their northward spread, experts advise the public to remain vigilant and report sightings to local pest control authorities. Understanding their movement patterns and impact on local ecosystems will be crucial in managing their presence. While the thought of giant spiders parachuting through the air may be unsettling, education and awareness are key to addressing the concerns associated with this invasive species.

The invasion of Joro spiders in the Northeast U.S. marks another chapter in the ongoing battle against invasive species. From their impressive size to their unique ballooning ability, these spiders are sure to make an impact on local communities. However, with proper management and a focus on education, residents can learn to coexist with these new arachnid neighbors.