[HN Gopher] Joro spiders likely to spread beyond Georgia
       ___________________________________________________________________
        
       Joro spiders likely to spread beyond Georgia
        
       Author : perihelions
       Score  : 172 points
       Date   : 2022-03-09 19:35 UTC (3 hours ago)
        
 (HTM) web link (news.uga.edu)
 (TXT) w3m dump (news.uga.edu)
        
       | wolverine876 wrote:
       | > This is the first article by Axios Richmond's Karri Peifer
       | 
       | Looking at the headline and the comparison to bubonic plague
       | (which apparently spread via shipping containers several
       | centuries ago), I wonder if it's just a first article or Axios's
       | future direction.
        
         | freetime2 wrote:
         | The link has since been updated to the more informative and
         | less sensational University of Georgia article.
         | 
         | For those wondering what this comment is referencing, here is
         | the original article: https://www.axios.com/local/washington-
         | dc/2022/03/09/giant-j...
         | 
         | For what it's worth, I got a chuckle out of the original. I can
         | definitely appreciate the sentiment, as I have unknowingly
         | walked into a quite few Joro spider webs and it never fails to
         | creep me out.
        
       | danShumway wrote:
       | I'm of course happy to know they're harmless and (as far as we
       | can tell) not horribly dangerous for the ecosystem, but speaking
       | as someone who
       | 
       | A) has arachnophobia and a general fear of insects, and
       | 
       | B) lives completely alone and can't get someone else to deal with
       | stuff like this for me,
       | 
       | would someone who lives in Georgia be willing to confirm to me
       | whether or not they come into houses, and how serious of a game
       | plan I need to make for dealing with them?
       | 
       | I deal with house centipedes/crickets[0] with Raid and then
       | scooping up the body after they're dead. Setting up bug barriers,
       | keeping things clean, and keeping down any other insect
       | populations that they'd feed on seems to deal with most
       | everything else. Tiny bugs like boxelder bugs show up rarely, and
       | are small enough that I can squish them without much trouble, but
       | anything bigger than an inch is tough to deal with.
       | 
       | So if I'm likely to find one of these on my wall in my living
       | room (even just occasionally), I legitimately need to plan ahead
       | and figure out a one-person strategy for killing/moving them out
       | of my house in a way that it isn't traumatizing, and if
       | conventional bug barriers don't work to keep them out then I need
       | to figure out something else for reducing the likelihood of them
       | coming in the house.
       | 
       | If they're just outside, that's not so much of a problem, big
       | bugs are fine outside, although it'll likely put a bit of a
       | damper on my willingness to go hiking in wood trails given
       | people's descriptions of the webs.
       | 
       | ----
       | 
       | [0]: Yes, I know house centipedes are positive predators to have
       | around and shouldn't be treated as pests, but I need to be able
       | to walk into my bathroom without worrying I'll find one on the
       | wall.
        
         | pg_bot wrote:
         | I live in SC and have seen some of these spiders. None of them
         | have come inside our property, they like to build very large
         | webs between trees and hangout there.
        
         | GrinningFool wrote:
         | You might want to look into 'bug grabbers'. We have one and it
         | really does work as advertised. We use it regularly on large
         | spiders, stink bugs, and occasional wasps.
        
           | danShumway wrote:
           | Maybe silly question, but how do you get the insect back out
           | in a controlled way? I assume they don't die inside of there.
           | 
           | I have a vacuum with a detachable wand, but I've never really
           | used it for insects because I always felt like... now what?
           | Can't they just crawl back out?
           | 
           | Also slightly skeptical of a handheld grabber or my vacuum's
           | ability to handle a 3 inch spider, but maybe I'm
           | overestimating their grabbing strength. I guess I could also
           | upgrade.
        
         | [deleted]
        
         | doctoring wrote:
         | I was visiting family in NE Atlanta last fall. These spiders
         | were everywhere -- coating houses, trees, power lines. And yet,
         | they do not seem to come into homes. Even the exterminators
         | they called said so.
        
           | danShumway wrote:
           | Assuming you're correct, hearing this genuinely makes me feel
           | way better.
           | 
           | It's not even necessarily a complete avoidance thing --
           | seeing a large insect when I'm outside just feels different;
           | it's something I'm more prepped for, I'm in a different
           | mental state. Huge boon if I'll mostly only need to worry
           | about them when biking/walking.
        
         | mkr-hn wrote:
         | No Joro spiders inside so far. At least 50 _around_ the house,
         | going by webs, but none inside. They kept their distance
         | outside.
        
         | throwanem wrote:
         | Orb weavers rarely enter human dwellings, although they do
         | quite like porches for the combination of good web substrate
         | and the prey-attracting effect of porch lights and lit windows.
         | 
         | I've only had an orb weaver in the house a couple of times, and
         | once ushered back out they typically remain so. One of them, a
         | young red orb weaver, abseiled down from the ceiling onto my
         | bare shoulder - I'm not sure which of us was more surprised,
         | but even if I didn't like spiders quite well in general, I
         | think her evident terror upon realizing her mistake would have
         | aroused some degree of sympathy.
         | 
         | Most spiders you'll encounter indoors in the eastern US will be
         | cobweb spiders, of which family black widows are by far the
         | most famous - but also very rare, with more typically
         | encountered cobweb spiders being quite harmless to humans. (Of
         | course, so are widows, when given proper respect, as with the
         | one who overwintered behind the toilet tank one year when I was
         | ten or so. She kept to herself and so did we, and we all got
         | along fine - and they are such beautiful creatures!) Beyond
         | that you can expect the occasional wolf spider, salticid, or
         | the like, these being cursorial hunters and thus not so much
         | homebodies as spiders generally tend to be.
        
       | blakesterz wrote:
       | "They likely traveled across the globe on shipping containers,
       | similar to the Bubonic plague."
       | 
       | Seems like an odd choice to compare a spider and the Bubonic
       | plague. Wouldn't any number of invasive species have been better?
        
         | throwanem wrote:
         | "Invasive" is mostly a matter of perspective.
         | 
         | By far the most successful invasive arthropod in the Nearctic
         | is the European honeybee, but you never really hear anyone talk
         | about the considerable ecological harm those do, for the
         | obvious reason that their agricultural and thus economic
         | utility is considered far to outweigh the externalities of
         | their cultivation.
        
         | smhenderson wrote:
         | The whole article is a bit tongue-in-cheek, with it's
         | references to "terrifying" even though it also says they're
         | harmless. And the end, where he says to build a dome over GA
         | now before it's too late, etc. I laughed out loud a little at
         | that last bit.
         | 
         | So I think the plague reference was meant as another way to
         | exaggerate the severity of the situation for humorous effect.
         | That was my take anyway.
        
           | Johnny555 wrote:
           | _The whole article is a bit tongue-in-cheek, with it 's
           | references to "terrifying" even though it also says they're
           | harmless_
           | 
           | A spider the size of the palm of your hand sounds pretty
           | terrifying to me no matter how harmless it is, but then I
           | really don't like spiders of any size.
        
             | chairmanwow1 wrote:
             | I thought it said the size of a child's hand.
        
               | quantum_magpie wrote:
               | Having come across them in Japan many times, they can get
               | as big as 10 cm across. Slightly less than a hand, but
               | still _extremely_ distressing when you run face-first
               | into one.
        
               | jrumbut wrote:
               | Why do I keep reading the comments on this story?
               | 
               | I'm booking a one way trip to the North Pole or wherever
               | these flying spiders aren't.
        
               | exhilaration wrote:
               | Sorry bud: _Spiders make up a significant portion of the
               | animal population in the Arctic._ -
               | https://animals.mom.com/spiders-arctic-6713.html
               | 
               | Looks like we're both signing up for the first one-way
               | trip to Mars.
        
             | brailsafe wrote:
             | Ah, but they're just cute little things.
        
               | sundarurfriend wrote:
               | Hilarious that someone went to the trouble of downvoting
               | you for this (comment is gray as I type this). Someone
               | _really_ doesn 't like spiders.
        
               | sundvor wrote:
               | The Huntsman spider in Australia is similarly harmless
               | one might believe - a useful pest controller as well.
               | 
               | Until one crawls across the windshield of your car whilst
               | driving.
               | 
               | I'm glad I was the driver when it happened. I can still
               | remember the screams of my then co-pilot, however. She
               | definitely had arachnophobia.
        
         | tejohnso wrote:
         | They're trying to make it sound terrifying in a fun way (I
         | think, maybe sarcastic). It's under a heading of "Other
         | terrifying things to know about the Joro spider" along with a
         | bunch of other facts that are not at all terrifying.
        
         | bombcar wrote:
         | I'm more interested in the 14th century shipping containers.
        
           | Wohlf wrote:
           | Differently shaped wooden crates and barrels, mostly.
        
           | mkr-hn wrote:
           | Some attempts to explore this on the worldbuilding Stack
           | Exchange: https://worldbuilding.stackexchange.com/questions/1
           | 28160/wha...
        
       | Miner49er wrote:
       | Man, these things are annoying. I think I live in an area where
       | they really started taking off, because I've seen them the last
       | two or three summers. It seems like they are more and more every
       | year. They make huge webs (like up to 6 ft huge, with single webs
       | going out even further) right at or above eye level and then just
       | sit in the middle of them. When hiking or biking trails you have
       | to constantly keep an eye out for them or you'll constantly be
       | walking into them.
       | 
       | Edit: There's a pretty good example picture of the webs in the
       | UGA article mentioned by the main article:
       | https://news.uga.edu/joro-spiders-likely-to-spread-beyond-ge...
        
         | jdmichal wrote:
         | Sounds reminiscent of banana spiders here in Florida -- aka
         | golden orb weaver or golden silk spider. They do the same thing
         | with their webs, which can also be hard to see due to the
         | coloring. (The "golden" is due to the silk's yellow color, not
         | the spider's.)
         | 
         | https://en.wikipedia.org/wiki/Trichonephila_clavipes
         | 
         | https://edis.ifas.ufl.edu/publication/in467
        
           | wil421 wrote:
           | Yes we have those in Georgia too. I used to see them a lot
           | but I think the Joro might be taking over their habitat.
        
           | nkozyra wrote:
           | Yeah these guys (well gals) can get pretty huge.
           | 
           | My least favorite Florida spider is also nonvenomous but I
           | used to get bitten by the spiny orb weaver any time I was
           | near a citrus tree.
        
             | jdmichal wrote:
             | Huh. I have those around and didn't even know they bit. Had
             | one living in my screened patio a week or so ago, but I
             | think it finally figured out that it wasn't going to catch
             | much there...
        
               | nkozyra wrote:
               | Like most spiders they tend to avoid humans. But if your
               | chore growing up is to clean up all the rotting oranges
               | you're going to be in their territory a bit and the bites
               | are really uncomfortable.
               | 
               | The worst part was the pain would last a few hours.
        
           | kahrl wrote:
           | Found an article that compares the two!
           | https://news.uga.edu/joro-spiders-likely-to-spread-beyond-
           | ge...
           | 
           | "The study found that despite their similarities, the Joro
           | spider has about double the metabolism of its relative, has a
           | 77% higher heart rate and can survive a brief freeze that
           | kills off many of its cousins. These findings mean the Joro
           | spider's body functions better than its relative in a cold
           | environment.
           | 
           | And that means the Joros can likely exist beyond the borders
           | of the Southeast."
        
         | ohwellhere wrote:
         | I went trail running in Georgia several years ago and came
         | within a few inches of running into one on its web that blocked
         | the whole trail.
         | 
         | I know now from the article that they're harmless, but as a
         | mild arachnophobe the experience was highly unpleasant.
        
           | laurent92 wrote:
           | I pruned trees in Kununurra, Northern Australia, and there
           | was a spider in each tree we'd cut (500/day). Harmless or
           | not, they tend to climb once they're on you, so those of us
           | who are afraid of spiders would just let them climb and shook
           | our hats while proceeding to the next tree. Yes, climb across
           | the face. The leader didn't bother, so spiders would fight on
           | his hat.
           | 
           | Awesome experience, but a few people harmed during the
           | summer, mostly because of the tools (and one by bees, one by
           | green caterpillars, one by dehydration after going to work by
           | 40degC after a night drinking - so basically all their faults
           | as long as you value yourself). Said boss had prison
           | experience. I tend to believe Gen Y misses the year of
           | military service and tend to replace it with similar
           | experiences, and the gap year in Australia is toughening for
           | the office monkey and the nerds we were. 100% would do it
           | again.
        
             | [deleted]
        
             | deebosong wrote:
             | I would watch this as an anime. Both from the POV of the
             | humans, but first and foremost from SPIDERVISION.
        
               | throwanem wrote:
               | You'd be disappointed. Orb weavers see quite poorly, and
               | rely on their webs as their primary sensory modality for
               | perceiving their surroundings. This is why they spend so
               | little time off the web, and also why male spiders pursue
               | such slow and painstaking courtships, plucking the web
               | with enormous care to ensure their prospective partner
               | recognizes their approach rather than mistaking them for
               | prey.
        
           | na85 wrote:
           | Time to start carrying a badminton racquet while jogging.
        
         | standardUser wrote:
         | Your description helped me realize these are the spiders I was
         | constantly dodging on trails outside of Puerto Vallarta last
         | year! The webs were usually over my head on the trails, but I
         | imagine that's only because of trail usage.
        
           | jdmichal wrote:
           | Those might have been banana spiders / golden orb weavers,
           | which are native to the southeast US down to northern South
           | America. They have the same web-building habit as described.
           | 
           | https://en.wikipedia.org/wiki/Trichonephila_clavipes
           | 
           | https://edis.ifas.ufl.edu/publication/in467
        
           | throwanem wrote:
           | Probably - I've seen an orb weaver learn to spin her web out
           | of the way of humans, lest we disarrange her careful work.
        
         | dang wrote:
         | We've changed to that link from
         | https://www.axios.com/local/washington-dc/2022/03/09/giant-j...
         | above. Thanks!
        
       | throwanem wrote:
       | Worth mentioning is that it is very young spiderlings, not
       | adults, who engage in "ballooning" to disperse from their natal
       | web.
       | 
       | You don't need to worry about giant spiders with four-inch
       | legspans falling on your head! Or not more than usually, at least
       | - the spiders drifting out of the sky will be only at most
       | perhaps the size of a matchhead, and even more harmless than they
       | would be when full-sized.
        
       | 6510 wrote:
       | While we brag about our boats and flying machines they do all
       | that.
        
       | ayngg wrote:
       | A couple years ago I was in Tokyo and even just going up Takaosan
       | I could see the pathway up was surrounded by what looked like
       | these guys everywhere, you could look up and see a bunch just
       | floating on their webs above the trail. Even on such a well
       | traveled path you could just graze the flora on the side and you
       | would pick up some web threads.
       | 
       | The thought of just going slightly off the path and basically
       | being covered by them made me shudder.
        
       | mkr-hn wrote:
       | We've had them for a couple of years. They keep to themselves,
       | eat bugs you do not want that their local cousins can't while
       | coexisting, and make great photo subjects.
       | 
       | https://twitter.com/givemefoxes/status/1501615636664958976
       | 
       | edit to add: What I did notice is that the insect population
       | seems to be returning after years of decline. I see more bugs
       | around lights every year. These could be the wolves of creepy
       | crawlies.
        
       | jcadam wrote:
       | Looks like I moved from the Southeast to Alaska just in time...
        
       | meowzero wrote:
       | I live in an area with Joros. I don't mind spiders at all. But
       | these joros are a pest. They take over literally everything. They
       | will cover all your porches, trees, etc. with their webs. Their
       | webs are massive, multi-layered, and tough.
       | 
       | I don't usually kill spiders or take down their webs, but I kill
       | these guys and remove their webs whenever they build near my
       | house. It's futile, but I do it anyway.
       | 
       | This article seem to say they're harmless. But I have heard
       | reports of them harming local hummingbird population and driving
       | local spiders out.
        
       | anotherhue wrote:
       | There is no water on Earth for giant insects!
        
       | whalesalad wrote:
       | 2022 bingo card: putin invades ukraine, oil tops 130/barrel,
       | giant spiders fall from sky.
        
         | ffhhj wrote:
         | Recommended movie on those topics: Enemy (2013)
        
         | fistynuts wrote:
         | Dogs and cats, living together
        
         | [deleted]
        
         | MaxfordAndSons wrote:
         | The big twist is that we end up nuking ourselves to get rid of
         | the giant sky spiders.
        
           | MikeDelta wrote:
           | You'd expect, according to Hollywood logic, that in the
           | aftermath of nuke attacks the arachnids and insects become as
           | big as horses.
        
             | throwanem wrote:
             | Nah. Not enough oxygen in the atmosphere to support
             | terrestrial arthropods much larger than the ones that
             | currently live on Earth, or Joro spiders would be much less
             | remarkable for their size - there's only so much you can do
             | with the relatively simple means of oxygenation that
             | arthropods have thus far evolved.
             | 
             | A shame, if you ask me. Social wasps are already quite
             | smart despite having only a few hundred thousand neurons
             | apiece to work with; I think I'd quite like to live in a
             | world where the largest hornets were perhaps dog-sized,
             | with brains to match, or indeed much larger still. If
             | nothing else, maybe people wouldn't so often look at me
             | funny for how well I get on with wasps and spiders, as if
             | there were some absurd betrayal of essential humanity in
             | the simple act of not being frightened by animals compared
             | to even the largest of which we may as well be so many
             | walking mountains.
        
         | brailsafe wrote:
         | Money becomes worthless, housing market crashes again
        
           | 1_player wrote:
           | The stock market goes up and down and sometimes crashes, the
           | housing market goes up indefinitely. Nothing can stop it
           | apparently.
        
             | jacobsenscott wrote:
             | I'll refer you to 2008. I suspect my future self will also
             | refer you to 2023, but we shall see!
        
               | throwanem wrote:
               | You really think it's going to take that long?
        
           | rapind wrote:
           | I wouldn't bet against you on that one.
        
             | buu700 wrote:
             | I mean, winning that bet would be kind of a Pyrrhic
             | victory.
        
       | Serverless_joe wrote:
       | Global pandemic... geopolitical tension... giant spiders
       | now?!?!?!
        
         | ModernMech wrote:
         | Maybe the murder hornets will save us from the spiders? Or are
         | the spiders supposed to save us from the murder hornets?
        
           | throwanem wrote:
           | Sparrow hornets and orb weavers aren't too likely to
           | interact.
           | 
           | In theory the spider might prey on the hornet, but sparrow
           | hornets are large and strong enough that I suspect it would
           | take a very busy spider to envenom one, and avoid being stung
           | in the process, before the hornet broke free of the web. Too,
           | wasps and hornets see much more acutely than many realize,
           | and likely have a decent chance of seeing and dodging webs -
           | I did once see a bumblebee caught in a red orb weaver's web,
           | but never yet a wasp or hornet, for whatever that's worth. (I
           | _have_ seen a drunk bald-faced yellowjacket sleeping it off
           | on my porch, with an orb weaver web in direct line between
           | her and the fig tree, but I don 't know that she didn't get
           | there before the spider had spun her web for the night.)
           | 
           | Sparrow hornets also aren't known yet to have made it east of
           | the Rockies, and the intervening terrain would be very
           | difficult for them at least, more likely impossible. That
           | said, they and Joro spiders hail from much the same origin
           | and may regularly share territory, in which case their
           | relationships are probably fairly well known - I'd likely be
           | able to say more here, except that I don't read Japanese and
           | thus can't review the relevant literature.
        
           | ketzo wrote:
           | No no, the murder hornets and spiders are supposed to
           | distract each other so that the bear-sharks can finally rise
           | from the depths and conquer the mainland.
        
           | nemacol wrote:
           | Murder hornets to the west, giant spiders to the east. Take
           | your chances with the tornados in middle America.
        
       | 97s wrote:
       | I was one of the first people to report them spreading back
       | almost 4(edit) years ago. One day I was taking in groceries and I
       | noticed a golden glimmer by my front door between 3 trees I have.
       | I took a closer look and I realized it was a massive 6-10 foot
       | web, that had 3-4 layers of web spread between the trees. Right
       | smack in the center of it was this beautiful 3 inch spider that
       | was amazing looking. Right below her was this tiny male spider
       | that was barely 1/8 her size. I immediately looked her up and
       | spotted an article about how they came to be and to report their
       | sightings. I emailed the UGA professor about this and he was
       | surprised to see they had already came this far in.
       | 
       | Almost 4(edit) years later, when you go outside on a misty
       | morning during the summer, you look up into the trees as you
       | drive home and it is literally nothing but glimmering Joro spider
       | webs. Thousands of them.
       | 
       | Most of them now appear in my back yard as I removed those trees,
       | but it was crazy to see peoples faces when they walked to my
       | front door and realized what they were walking past and freaked
       | out at a 3 inch spider about 5 foot away from them.
       | 
       | edit: when I looked up the UGA professor name I realized I
       | emailed it back in September 2018! Crazy.
        
         | [deleted]
        
         | echelon wrote:
         | Unless there are other giant yellow spiders with black legs and
         | big webs native to Georgia, I'm almost certain I spotted these
         | when jogging by my neighbor's house in North Georgia around
         | 2007. It was terrifying looking, and it stuck with me.
         | 
         | It had to be around that time, because I moved shortly
         | thereafter.
         | 
         | Anecdotal, but when I saw this headline I immediately thought
         | back upon it.
        
           | mkr-hn wrote:
           | Those are the local variety. The new ones are much, much
           | bigger.
        
           | munificent wrote:
           | Probably just a banana spider:
           | https://en.wikipedia.org/wiki/Trichonephila_clavipes
           | 
           | Here's one from 2006 in Central Florida: https://www.flickr.c
           | om/photos/bobisbob/299200141/in/datepost...
        
           | nik41tkins wrote:
           | Not in GA but close enough. My guess is you saw
           | https://en.wikipedia.org/wiki/Argiope_aurantia
        
           | 97s wrote:
           | There are some other yellow spiders, but nothing really
           | compares to this one. They don't make traditional webs. They
           | make massive ugly janky looking webs from all different
           | directions that span across a lot of different branches. I
           | don't think they came to be until about 3 years ago. The UGA
           | professor says that they believe they came from a freight
           | truck traveling up I85 as they hatched off.
        
         | oyebenny wrote:
         | Who was the professor if I may ask? He may have been mine!
         | Etymology is a very niche community at UGA!
        
           | 97s wrote:
           | Edward Hoebeke
        
           | p3rls wrote:
           | etymology from the greek etumos for "true"
           | 
           | entomology from the greek entomon for "insect", the tom
           | actually is the same tom in atom.
        
       | nix23 wrote:
       | >They likely traveled across the globe on shipping containers,
       | similar to the Bubonic plague.
       | 
       | Ah yes i heard of that, the Bubonic plague traveled in/on?
       | shipping containers.
       | 
       | Is that a stupid AI or a stupid Human who writes articles like
       | that?
        
         | MisterTea wrote:
         | A wooden barrel or crate is a form of container.
        
           | nix23 wrote:
           | Who ships fleas in barrels? Probably more like rodent and
           | fleas with humans on ships....just forget the
           | barrels/containers...senseless point ;)
        
       | cmrdporcupine wrote:
       | I want that. In my vineyard here in Ontario. Eating copious
       | quantities of Japanese Beetles.
       | 
       | Can they survive -20C?
        
       | seba_dos1 wrote:
       | Georgia seemed to me like a weird place to talk about regarding
       | big colorful spiders that may spread beyond the country, but it
       | turns out that the USA has a state with the same name (TIL).
        
       | davesque wrote:
       | Here's their informative, definitely-not-clickbait-fear-mongering
       | list of bullet points later down in the article:
       | 
       | "* They are bright yellow, black, blue, and red and can grow _up
       | to 3 inches._
       | 
       | * They likely traveled across the globe on shipping containers,
       | _similar to the Bubonic plague._
       | 
       | * Their life cycle begins in early spring, _but they get big_ in
       | June and are often seen in July and August.
       | 
       | * They're named for Jorogumo, a creature of Japanese folklore
       | that can shapeshift into a woman or spider before _killing its
       | prey._ "
       | 
       | Emphasis added.
        
       | flanking_pajama wrote:
       | I know this article and the comments are pretty light about this,
       | but I really do wonder what they eat and what we're eventually
       | going to hear about being muscled out of the local ecosystems as
       | a result of their success. At least their introduction wasn't
       | intentional, which tbh is kind of scary in itself.
       | 
       | Globalism: it's for spiders, too.
        
         | jwozn wrote:
         | There is some good news there. From an article posted in a
         | different comment: "Joros don't appear to have much of an
         | effect on local food webs or ecosystems, said Andy Davis,
         | corresponding author of the study and a research scientist in
         | the Odum School of Ecology. They may even serve as an
         | additional food source for native predators like birds." [0]
         | 
         | [0] https://news.uga.edu/joro-spiders-likely-to-spread-beyond-
         | ge...
        
         | spyspy wrote:
         | Spotted lanternflies with any luck
        
           | Ericson2314 wrote:
           | Yes was thinking the same. Tree of heaven -> lanternflies ->
           | these spiders would be a pretty tight fable!
        
         | BirAdam wrote:
         | Here in GA, there are already multiple types of orb weaver and
         | these are in the same niche with one exception: they will also
         | eat stink bugs. There are also many birds who eat the orb
         | weavers and will also eat the Joros. They basically slide right
         | in without too much serious impact.
        
         | fjert wrote:
         | All I could find is that we know they eat brown marmorated
         | stink bugs[0].
         | 
         | "Joro spiders also appear to be able to capture and feed on at
         | least one insect that other local spiders are not: adult brown
         | marmorated stink bugs, an invasive pest that can infest houses
         | and damage crops."
         | 
         | [0] https://news.uga.edu/joro-spiders-are-here-to-stay/
        
           | jsnodlin wrote:
        
           | buu700 wrote:
           | How much would it cost to import more Joro spiders? I'll be
           | writing to my local representatives immediately.
        
             | nneonneo wrote:
             | ...and that's how we end up with invasive species problems.
        
               | yissp wrote:
               | If they get out of hand, just bring in another species
               | that preys on the spiders, problem solved :)
        
               | sundvor wrote:
               | Do you need any rabbits? Cheers from Australia
        
               | AutumnCurtain wrote:
               | That's the beauty of it. When winter rolls around, the
               | gorillas simply freeze to death.
        
             | viraptor wrote:
             | Cane toads in Australia:
             | https://en.wikipedia.org/wiki/Cane_toads_in_Australia
             | 
             | > In June 1935, 102 cane toads were imported to Gordonvale
             | from Hawaii
             | 
             | > Since their release, toads have rapidly multiplied in
             | population and now number over 200 million (...) but also
             | no evidence indicates that they have affected the cane
             | beetles for which they were introduced to prey upon.
        
       | amanzi wrote:
       | Not sure why the article describes these as harmless? If one of
       | them parachutes down on to my face, I'm sure I'll die of a heart
       | attack - hopefully a quick death.
        
         | stjohnswarts wrote:
         | I think I read somewhere that they have a tendency to leap onto
         | objects passing underneath them that are several thousand times
         | their mass and try to spread throughout the land.
        
         | Bellend wrote:
         | Oh man, you aren't alone. This is nightmare fuel. I would move
         | away from the area guaranteed just to escape the possibility.
         | As far as I know, my only fear is spiders and it makes up for
         | being blase about almost everything else. I still check my room
         | before I get into bed because 2 years ago a House Spider (about
         | the size of a pint glass hole) was on the headboard as I was
         | minding my own business in bed. Not too long ago I had a
         | nightmare about that. Never mind it's parachuting yellow
         | brothers from the sky being a thing. No way.
        
           | throwanem wrote:
           | Only young juveniles balloon; on the one hand it's how they
           | disperse from their natal web, and on the other only a very
           | tiny spider is light enough to balloon at all. You probably
           | wouldn't even notice if one landed on you.
           | 
           | In any case, they're a lot more scared of us, and fairly so -
           | imagine Cthulhu peering into your bedroom window, and you've
           | got a fair picture of what it's like to be a spider who's
           | suffered the mishap of somehow attracting human attention.
        
             | jrumbut wrote:
             | If Cthulu peered into my bedroom I'd ask him to kill the
             | spider.
        
               | throwanem wrote:
               | Which would avail you nothing, most likely, and this is
               | by way of being my point: it may possibly ameliorate your
               | fear to try to understand what an interaction between a
               | human and a spider might be like from the spider's
               | perspective.
        
             | chihuahua wrote:
             | I notice this whenever I try to pick up a spider and bring
             | it outside the house. They want to jump off my hand as
             | quickly as possible, and descend to the ground on a strand
             | of silk. They have no interest in biting etc.
             | 
             | So the best way to bring them outside is to put a plastic
             | cup over the spider, then carefully slide a postcard
             | underneath the cup, and then release it outside.
        
               | throwanem wrote:
               | I avoid that because it risks harming the spider - the
               | cup/card interface is basically one giant moving pinch
               | point, and the force required to cause traumatic
               | amputation is insignificant by human standards. But they
               | can only secrete silk so quickly, which makes the escape
               | thread itself very serviceable as a means of carrying
               | them to safety - just raise your hand gradually as they
               | extend the thread, so they don't touch down until you
               | want them to.
               | 
               | It depends on the spider, too. Orb weavers are reliably
               | fearful, which makes sense given how little they can
               | perceive away from a web, but I've had the occasional
               | salticid climb up to perch on my knuckles with no sign of
               | dismay, and wait to hop off until I bring my hand close
               | to a suitable surface.
        
               | stjohnswarts wrote:
               | Sorry dude, I'm giving them a chance with the cup and
               | junk mail method. I'm not carrying one by the "silk".
               | Nature is ruthless and I'm giving them a fighting chance
               | :)
        
       | adenozine wrote:
       | Well that's the worst thing I've ever read
        
       | tedunangst wrote:
       | If they come far enough north, maybe we can recruit them to turn
       | the tide in the war against the spotted lanternfly.
        
       | notadoc wrote:
       | Do we really need these clickbait headlines on Hacker News? For a
       | while, this was a refuge from that garbage.
        
       | karolist wrote:
       | Is the TFA implying that these spiders will climb the trees and
       | use their webs to lower themselves from "the sky"? Because "drop
       | from the sky" brought back memories of original Red Alert 2
       | trailer https://youtu.be/2YlVumsPHx4?t=80, which is now relevant
       | even without the spiders. And it's scary.
        
         | g051051 wrote:
         | See https://www.newser.com/story/317794/these-giant-flying-
         | spide...:
         | 
         | > hatchlings are often spotted "flying" through the air on silk
         | strands, a la the babies in Charlotte's Web
        
         | bagels wrote:
         | That part is really not addressed at all. They can fly? To what
         | altitude? How does a spider even fly like this in the first
         | place?
        
           | [deleted]
        
           | adrian_b wrote:
           | A young spider makes a long silk string, which will be blown
           | by the wind, together with the attached spider.
           | 
           | Like a human who flies using a balloon, the spider does not
           | have any control over the flight direction. That depends on
           | the winds.
           | 
           | However, the spider can control when to descend back to the
           | ground, by gathering the silk string, like the human with the
           | balloon, who can release the gas which fills the balloon.
        
         | adrian_b wrote:
         | Adult spiders become too heavy to be able to fly again.
         | 
         | Those who fly using silk strings are very young and small.
        
       | [deleted]
        
       | mise_en_place wrote:
       | It's interesting to see the vivid colors that they evolved to
       | develop. Could it be they were mimicking poisonous spiders? To
       | prevent predators from eating them.
        
       | bhaak wrote:
       | Giant alien spiders are no joke!
        
         | flerchin wrote:
         | NBD if you have clone bay though.
        
         | R0b0t1 wrote:
         | Giant alien spiders aren't real, friend. https://scp-
         | wiki.wikidot.com/antimemetics-division-hub
        
           | LandR wrote:
           | Recently read a book called "There is no antimemetics
           | division", pretty good book!
           | 
           | It's based on that SCP.
        
             | msoucy wrote:
             | I'm pretty sure the author of that book actually wrote a
             | lot of the Antimemetics SCP posts in the first place. It's
             | certainly up their alley.
        
       | rr808 wrote:
       | You'd hope the spiders will feast on other exotic invasive
       | insects like Spotted Lanternfly and Gypsy Moths but inevitably
       | they will eat everything local instead.
        
       | acchow wrote:
       | Why are there so few insects and spiders in San Francisco?
       | 
       | In any other city in the world, I encounter insects with 10-100x
       | the frequency.
        
         | iotku wrote:
         | Even the insects can't afford to live there.
        
         | xenadu02 wrote:
         | There are lots of spiders in the Bay Area, including here in
         | SF. But definitely fewer of other insects compared to other
         | places I've lived.
         | 
         | I think it is partially the cool weather that slows them down
         | and the long dry season. It seems especially hard on the
         | typical flying insects that tend to annoy people. Most of the
         | insect life I've seen prefers to root around deep in the
         | topsoil where it is presumably warmer and not as dry.
        
           | ben7799 wrote:
           | It's the dry climate.
           | 
           | Western Europe is similar. Coming from New England it blew my
           | mind they barely even know what insect screens are in
           | France/Germany/Switzerland. Just an unbelievable lack of
           | insects compared to the eastern US.
        
           | clpm4j wrote:
           | Spiders and Argentine ants. Those are the only insects I
           | consistently see in SF. Nothing in comparison to the
           | Southeast though... I do not miss the mosquitoes and roaches.
        
       | throwaway2214 wrote:
       | Can you eat them? I dont know why we dont eat more insects, but
       | it seems super good ROI.
       | 
       | I tried to grow crickets to make flour out of them, but it was
       | much harder than I thought, those spiders seem easier, and are
       | also meatier.
        
         | vgel wrote:
         | What did you find difficult about raising crickets? I remember
         | as a kid I had a lizard and a cricket box for feeding and it
         | was just a matter of adding cricket food and cardboard tubes
         | (disregarding the one "dropped the box of crickets on the
         | ground and all the crickets escaped into the kitchen" incident,
         | to be fair). That said, I wasn't trying to raise human-food-
         | grade crickets, lizards are probably less picky.
        
         | danShumway wrote:
         | Everything else in this comment aside, what are you planning to
         | feed them if you don't want to grow bugs like crickets?
        
           | throwaway2214 wrote:
           | I was kind of hoping they find their own food :)
        
             | danShumway wrote:
             | Desperately hoping that this response means you want to
             | catch them from the wild or around your property, and not
             | that your house naturally contains a volume of insects
             | large enough to support a nontrivial population of these
             | things. :)
        
       | nkozyra wrote:
       | > They likely traveled across the globe on shipping containers,
       | similar to the Bubonic plague.
       | 
       | Yeah, I guess that counts as a "terrifying thing" if you consider
       | those the two things on earth that travel across the globe on
       | shipping containers.
        
       | Buttons840 wrote:
       | > [The spiders] are harmless to humans as their fangs are too
       | small to break human skin
       | 
       | I thought the whole "small fang" thing was a myth? Haven't we all
       | heard of a local spider which is very poisonous but has fangs
       | that are too small?
       | 
       | Does anyone know if the "small fang" thing is true? And does the
       | spider have venom if it is able to bite?
        
         | dragonwriter wrote:
         | > Does anyone know if the "small fang" thing is true? And does
         | the spider have venom if it is able to bite?
         | 
         | Virtually all spiders are venomous, but many can't penetrate
         | human skin and many have venom that isn't dangerous to humans
         | at the dosage injected.
        
         | friedturkey wrote:
         | I once walked down a street that had hundreds of them. Being
         | bored and interested in spiders, I picked up a twig to provoke
         | them a bit and see how they responded.
         | 
         | Some of them would furiously try to bite the stick and I could
         | feel their fangs scraping on it. So I can't quite say whether
         | they're strong enough to break the skin, but they're strong
         | enough to send vibrations down a 2 foot long stick.
        
       | khaki54 wrote:
       | On the bright side, this spider eats those stink bugs that
       | nothing else will touch. We will of course need something to eat
       | the spiders
        
         | jrodthree24 wrote:
         | Maybe we can have some of these spiders to eat the other
         | spiders.
         | 
         | https://en.wikipedia.org/wiki/Portia_(spider)#:~:text=Portia...
         | .
        
           | bobbylarrybobby wrote:
           | FYI your bing query is included in that URL (a practice which
           | I detest)
        
         | gvb wrote:
         | Birds eat the spiders. Then they poop on my boat. :-/
        
       | thecrumb wrote:
       | Me Googles "how to make diy flamethrower"
        
       | hunterb123 wrote:
       | Looks similar to a banana spider, the webs nearly alike too.
       | 
       | https://wikiless.org/wiki/Golden_silk_orb-weaver
        
       | nkrisc wrote:
       | If they're that harmless then I'm kind of hoping I find some if
       | they are in fact here. They look pretty interesting.
       | 
       | Looks like they'd make for some cool photos.
        
         | chomp wrote:
         | They won't break your skin but you'll still feel the bite.
        
           | TobTobXX wrote:
           | > To humans, the Joro Spider isn't particularly dangerous. A
           | bite won't kill you. It'll hurt, though. A lot. Imagine a bee
           | sting. It'll hurt where you were bitten with a blister.
           | Within a day, you'll be fine.
           | 
           | https://jorospider.com/are-joro-spiders-dangerous/
        
           | nkrisc wrote:
           | I mean that's pretty harmless if they're as non-aggressive as
           | it suggest they are.
        
         | iffycan wrote:
         | They are beautiful, but they don't come one at a time. They
         | make their thick webs _everywhere_ and in big groups. You can't
         | escape them during spider season.
        
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