Joro spiders in a web

Imagine stepping into your backyard, when suddenly, you spot a giant spider with a large web stretched between your trees. This isn’t your typical garden variety spider; it’s huge, menacing, and unlike anything you’ve seen before. Your mind races – what could it be? It’s possible you’ve just encountered the Joro Spider, a species of orb-weaver spider that has recently made headlines as it’s been spotted in several states across the eastern United States – including, yes, here in North Carolina. 

So what is a Joro spider and should you be concerned? In this blog, we’ll unravel the mystery of this intriguing newcomer.

What Does the Joro Spider Look Like?

The Joro Spider stands out for several reasons. It’s a large, vibrantly colored spider with a massive web. Seeing a large Joro usually means it is a female, as the spiders exhibit sexual dimorphism. This means that the females and meals vary in appearance from one another. 

Here’s how to tell male and female Joro spiders apart:


  • Size: Much smaller than females.
  • Color: Darker, less vibrant, with more subdued colors.
  • Web: Does not build webs as females do.


  • Size: Large, with a body length of about 0.75-1 inch and a leg span of up to 4 inches.
  • Color: Bright yellow and blue body with distinctive red markings.
  • Web: Builds large, intricate webs that can span up to 10 feet.

The Joro Spider web is also distinct, as they are large, strong, and golden. The webs can trap a variety of insects. 

Where is the Joro Spider Found?

The Joro Spider is noted as an adaptable spider due to its various habitats. While they were originally assumed to live in a large natural area, the Joro Spider is surprisingly urban-tolerant. Interestingly, they have even been found near highways. This is unusual as web-hunting spiders rely on vibrations to capture their prey. Their ability to thrive in different environments, including urban areas, underscores their versatility and potential for wider spread.

Where Did the Joro Spider Come From?

The Joro Spider is native to East Asia. Their initial appearance occurred near ports, so it is assumed that they were transported to the U.S. through shipping containers. From there, the spider subsequently spread across the eastern United States. 

Is the Joro Spider Dangerous?

Joro Spiders are generally not a threat to humans, despite their daunting appearance and size. They are capable of biting, however, their fangs are small and when they are confronted, they typically retreat from the threat. The most frightening aspect of the spider is related to their appearance, rather than their aggressiveness.

What’s Next for the Joro Spider in North Carolina?

For those not fond of spiders, the news might be unwelcome: the Joro Spider is probably here to stay. Their adaptability and successful breeding indicate that they’re likely to continue spreading across the eastern seaboard.

Got Questions About Spiders?

While the Joro Spider might initially inspire fear due to its size and unfamiliar appearance, it’s important to remember that they are largely harmless to humans. Their presence in North Carolina and beyond is a testament to the ever-changing tapestry of our local ecosystems. 

However, if you have concerns or questions about the Joro Spider or any other pests, remember, we’re here to help. Call us anytime for advice, information, or assistance in dealing with any pest-related issues.

Does North Carolina have the Joro Spider? Serving Charlotte, Raleigh, Greensboro, and Durham

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