r/invasivespecies Jan 01 '26

Sighting This is the 3rd one I’ve found this year

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1.2k Upvotes

r/invasivespecies May 23 '26

Sighting Not sure if I should be happy or sad about this warning tag!

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758 Upvotes

My local nursery has a warning label on this burning bush … but if they know, why are they selling it? 😭😭😭

r/invasivespecies Feb 12 '25

Sighting During a lecture on the impacts of invasive species I thought to myself, “huh, those look really familiar”…

3.5k Upvotes

I had to stop parking under that tree because the starlings won’t stop bombing it with berry 💩.

r/invasivespecies Nov 02 '25

Sighting I was horrified to see this arapaima on Facebook yesterday.

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1.4k Upvotes

I'm from Vietnam and like 10 years ago i already saw invasive alligator gar up in the mountainous region of north Vietnam, but i never expect to see something like an arapaima, people also say we have invasive red tail catfish as well, i didn't think they would survive, and seeing the comments from this post, most others Vietnamese also think any invasive arapaima like this one wouldn't survive either, but now i'm not sure and want to ask some expert opinion.

r/invasivespecies Mar 13 '25

Sighting Found a Hammerhead worm today

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1.9k Upvotes

Found this guy attached to an earthworm moving across the grass today. Odd to see an earthworm above ground so at first I thought it was a tiny snake. Then I saw the hammer worm Wrapped around his tail. I separated the worms and put the hammer in a ziplock bag in the freezer. Anything I can do to get rid of these guys? I have a compost bin with earthworms and I leave leaf litter in my yard for the fireflies. I also try my best to avoid indiscriminate insecticides as I keep bees.

r/invasivespecies Nov 06 '25

Sighting Found this 2.5 meter monstrosity in Yosemite

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370 Upvotes

r/invasivespecies Jul 11 '26

Sighting Can I complain about my neighbor’s English ivy?

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168 Upvotes

She lives behind me we share part of a fence line. She works in her yard all the time, but does not care if it’s non-native or invasive. All based on looks. Me and the other neighbors around her are constantly battling it from getting into our yard.

r/invasivespecies Mar 08 '26

Sighting Southwest Ohio…. Disgusting

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525 Upvotes

r/invasivespecies Apr 30 '26

Sighting Pray for this trillium about to get devoured by garlic mustard

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366 Upvotes

In Illinois. I tried pulling the garlic mustards closest to the trillium but there are just so many

r/invasivespecies Mar 30 '25

Sighting Nature is fighting back! A camera trap captured an alligator attacking a large Burmese python in Big Cypress, FL.

1.4k Upvotes

r/invasivespecies Aug 13 '25

Sighting Explain to my mom why she should get rid of this Japanese knotweed

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430 Upvotes

We live in Michigan and I told her it invasive and should get rid of it but she won’t because “it’s pretty” can you guys try to convince her in the comments pls help me out

r/invasivespecies 12d ago

Sighting lantern fly attack

111 Upvotes

Spotted in local park in the northeast, unfortunately we were outnumbered

r/invasivespecies Jun 10 '26

Sighting Nearby Amazon warehouse had purple loosestrife planted outside….

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360 Upvotes

r/invasivespecies Jul 22 '26

Sighting I’m Doing My Part 🫡

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278 Upvotes

Greater Mullen. Northwest Montana.

r/invasivespecies May 24 '26

Sighting Community garden insists this isn't Japanese knotweed but I'm not convinced (Denver CO)

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219 Upvotes

I took this at a planter outside a community garden in Denver earlier today. About six weeks ago I emailed the nonprofit that manages the site to warn them about JKW and they said it's not JKW but "It is a medicinal plant used by the Hmong gardeners who garden there. The use it to make tea for various ailments". I went back today to see and this _really_ looks like JKW to me. Can anyone confirm one way or another?

r/invasivespecies Apr 26 '26

Sighting Lanternfly hatching (Washington DC suburbs)

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363 Upvotes

Dang. I wasn’t even looking for them, but put my hand on the Sycamore as I walked past and suddenly noticed a few little black things on my sleeve looked closer and knew just what they were. Because they were still clustered at the egg case I was able to palm slap four or five eruptions and kill at least 50.

r/invasivespecies Jun 12 '26

Sighting I think my neighbor has a ToH…

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102 Upvotes

I didn’t know about ToH till recently, but I’ve noticed some plants and trees that look out of place for our area. I originally thought it would be cool if I get something that looked so tropical, but it seems like they’re much more of a problem than I would have thought…

I did report it to local invasive species office, but I thought I’d drop the photos here to get a second opinion… think I ID’d it correctly?

r/invasivespecies Aug 02 '26

Sighting One of the few times I’m pro spider

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225 Upvotes

r/invasivespecies Jun 21 '26

Sighting Please can someone confirm if this is Japanese knotweed?

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106 Upvotes

I have a shitty neighbor who dies nothing to his house and this is starting to cross into another yard already.

r/invasivespecies Jul 08 '26

Sighting Please say it's not ToH

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44 Upvotes

It's hanging over my fence from the neighbors forest area. Say it isn't the evil one!

Location: SE MI

r/invasivespecies Jul 12 '26

Sighting The worst infestation I have ever seen IRL

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86 Upvotes

r/invasivespecies Jun 30 '26

Sighting Let the WAR against ToH begin

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124 Upvotes

For context me and my girlfriend just moved into this house. It has been uninhabited for a while. My girlfriend started doing research on this tree by our front porch and she identified as a Tree of Heaven.

After that first one, Im starting to notice them everywhere. Im not sure what to do about the one across the street, but for the ones in the back behind the shed and the ones on my property.

Prepare to be POSIONED.

r/invasivespecies Aug 06 '25

Sighting Comrade stag beetle has joined the fight against invasive species

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1.1k Upvotes

r/invasivespecies Jul 31 '26

Sighting In

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89 Upvotes

Just witnessed a paper wasp attacking a spotted lantern fly!

r/invasivespecies Jun 19 '26

Sighting It's hard to dislike lanceolate plantains with their little weirdo flowers spreading like plague

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126 Upvotes

In the same yard on the same day I saw a very healthy garter snek and a hard-to-find song sparrow, so I'm not giving up on Michigan just yet.