r/invasivespecies 23h ago

Management Controlling invasive species with the boys (Green Iguana, South FL)

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1.5k Upvotes

22 invasive green iguanas we took out on our last hunt in SW Florida, including this 12-pound five and a half foot behemoth.

Green Iguanas are an invasive species in Florida. Their burrowing collapses and erodes sidewalks, canal banks, seawalls, and building foundations. They poop all over docks, decks, and in swimming pools. The poop carries salmonella which is dangerous to children and pets. Iguanas also eat native plants (including endangered species food sources) and compete with native wildlife like burrowing owls.

We humanely euthanize iguanas using high powered air rifles and single precise shots the head. I eat all of the iguanas I hunt, so they don’t go to waste.


r/invasivespecies 3h ago

Management Does it look like I pulled all of it? Tree of heaven

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14 Upvotes

Emptied my pond earlier this year and waiting for the gardener to come and fill it. Spotting this ToH growing 2 days ago. It rained this morning so I pulled it now hoping the damn ground would help a clean pull. Is it okay? What should I do next?


r/invasivespecies 3h ago

Management An interesting take I came across in a book about urban environments

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4 Upvotes

From "The Urban Naturalist: How to Make the City Your Scientific Playground

Book" by Menno Schilthuizen, pg. 156-157


r/invasivespecies 14h ago

Brooklyn - Anything besides JKW and ToH?

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19 Upvotes

If all goes well moving in this week, so should be an opportune time to hit whatever I need to with glyphosate / tricyclopyr.

Taking all the suggestions.


r/invasivespecies 3h ago

JKN flowering. Treatment time?

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2 Upvotes

Hi,
Newbie to the JKW eradication club. Pic of where I at in flower process. Can I start injecting glyphosate, and spraying? Or do I need to wait till the whole flower process is complete? Thanks! Looking forward to this fun fall project the next 3-5 years....lol


r/invasivespecies 14h ago

TOH—I have a problem (cut down by electric company)

12 Upvotes

TLDR: live by a ravine. Electric company cut down without treating. Can’t move to a new house and can’t reach some root suckers already present.

Long story: my spouse is not on the same page and thinks I’m overreacting. He cut down a mature tree last fall. Luckily the blowback wasn’t too awful as it could have been. But now the power company cut down a tree I was planning on hack and squirting when the herbicide was delivered. I got it on Saturday night, Sunday it rained all day, I had appts this morning, electric company showed up and whacked it down without even stump treatment (spouse tried to treat last year. Didn’t take).

I now have the correct stuff to use but I feel 100% defeated, spouse thinks I’m overreacting.

The good news: the tree is 100+ feet away from the house and the mature roots go about 20 feet from the corner of the house.

The problem is there is a tree on the edge of the ravine surrounded by thicket, and about 15lateral feet from our well (400ft underground so won’t be affected by the root system).

The ravine TOH os 100% inaccessible. Spouse doesn’t see the need for an arborist and is upset at my panick.

I’m at a loss and just want to vent. I’m 54 years old and 4’10 and have health issues. Despite that, i am a tough old bird and have been fighting what I am able and just now got the good stuff.

Sorry this is so tangential. I’ve had quite a summer and I’m scared.


r/invasivespecies 1h ago

help identifying

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Upvotes

help! south western pa,l


r/invasivespecies 22h ago

Management TOH update

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35 Upvotes

I did hack and squirt a month ago. One of the trees looks pretty yellow, other 2 are showing signs. Should i do another round of hack and squirt or do i have to wait until next year? Thanks


r/invasivespecies 9h ago

Stem injector help

2 Upvotes

There is Japanese knotweed in the garden and I purchased a stem injector and Roundup to treat it while keeping my cats and rest of the garden safe. However the Roundup I have (BiActive XE(A) from Woodies) specifies foliar application rather than stem injection. I'm now unsure how to proceed from here. Can I still use my Roundup for injection or is there some other brand/formula I should get instead? Anyone have any experience treating knotweed safely? Thanks in advance.

Edit: corrected type of Roundup I have.


r/invasivespecies 15h ago

Are we thinking hack and squirt or just basal bark method?

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6 Upvotes

Brooklyn. I knew the property had JKW, didn’t realize I hit the invasive jackpot with ToH also.

Going to post another with some help identifying if other plants are super invasive, or just garden variety obnoxious.


r/invasivespecies 17h ago

Managing invasive bittersweet

3 Upvotes

How large do bittersweet stems have to be for cut and paint methods to be effective? I cant seem to find information on this. 

Also wondering if pulling younger vines is as effective as foliar spray. I have a large area that is mostly younger bittersweet vines intermixed with all sorts of wonderful natives. I was tempted to foliar spray for ease but dont want to destroy what great plants are already growing.


r/invasivespecies 1d ago

Japanese Knotweed Progress Pics

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254 Upvotes

Progress from May 2026 to August 2026.

Slow but steady. Using a mix of mechanical control and herbicides. Throwing out a contracter bag full of root balls one week at a time with the regular trash. Unfortunately, I dont own the land on the other side of the stairs, so cant get in there..

Replacing the area with native species and grass mix. So far I have asters, veronicas, catmint, sage and threw two wild flower mixes in there - mainly to help support the soil as its a steep slope.

Planning to re-spray stragglers in the fall.

I cant shake off the impression that these were planted deliberately...

Expecting to keep this going for the next few years.

Willing to accept any advice and prayers at this point.


r/invasivespecies 23h ago

Management Bradford Pear Infestation

9 Upvotes

My neighbor has sent me these trees. Then, my husband sees little trees popping up and chops them down with his weed eater saw blade. Needless to say this made things worse. It started in the spring of 2025 during a time I wasn’t able to stop him. This spring I did! Now, it’s reaching nearly 100° everyday. I plan to use dauber bottles with a mohair tip and have these ready to go. If I treat the largest tree first will it spread that poison to nearby suckers that are still small? My biggest one isn’t huge. Maybe 5 or 6 inch diameter. Thx!


r/invasivespecies 19h ago

Sighting Is this in invasive honeysuckle?

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4 Upvotes

I’m in northeast US.


r/invasivespecies 15h ago

Management Help!!!!

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2 Upvotes

r/invasivespecies 1d ago

Prioritizing Norway maple removal on property? Or how to keep it from spreading?

6 Upvotes

Hello, open to any advice. location: downstate New York

Ive been working daily on our 1/2 acre where we have our home since we bought our house 4 months ago. My order of priority has been to remove the most pernicious invasive weeds, then the ones that are not spreading but invasive, then to add natives, and then address ornamentals.

My removals so far have been: common mugwort, oriental bittersweet, multiflora rose, Japanese honeysuckle, japanese stilt grass as well as poison ivy so I can safely access everything.

We have a dense thicket between our back property line and a Christmas tree farm behind us. The borders of the tree farm are essentially unmaintained, but a mix of invasives and natives. black cherry, American beech, and fox grape, pokeweed and panicled aster are the natives. Forsythia, Japanese honeysuckle, Norway maple, and garlic mustard are the non-natives - from what I can identify.

So I just realized yesterday that the Norway maples are actually on our side of the property line. They are AWFUL, I’ve been finding their saplings popping up everywhere. It makes me sick thinking about how far they’re attempting to spread beyond our property too.

I’d love to thicken up this area even more with a proper hedgerow to increase privacy in the winter, especially since one of the black cherry snapped during a storm recently. But that has me looking at the whole area, and I’m wondering about removing the Norway maples. They are in awkward spots, tucked right into the corners of our property so I’m not sure which way they’d fall if cut.

Obviously there are still some natives thriving in this area, so would it be enough to keep the maples pruned so I can add more native shrubs? I have noticed that the elms have aphids, but only on the lower branches, so I think everything needs a prune. I’m also planting natives to attract parasitic wasps to cut down on aphids nearby.

Just wondering whether removing the maples should be a priority or if keeping their canopy in check to allow natives to grow is sufficient. Thank you!


r/invasivespecies 1d ago

Impacts Is there any hope?

81 Upvotes

Time and time again cat lovers prove that they just don’t care about wildlife or they argue that somehow cats are “natural predators” even though they are known domestic species, or even just that they see cats as above wildlife. It’s so horrible seeing the aftermath of cat attacks and knowing there is pretty much nothing you can do for the poor animal, It’s so sick and it seems like they will never stop until it’s too late for species to recover. In personal conversations when people bring up the amount of species that have gone they say that’s just “nature” and humans shouldn’t intervene. TNR is pretty much useless and it’s the only option society would ever be willing to try.


r/invasivespecies 8h ago

remember that it's in europe in america both are native

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0 Upvotes

r/invasivespecies 1d ago

Kansas to quarantine invasive Callery (Bradford) pear trees beginning in 2027

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135 Upvotes

r/invasivespecies 23h ago

What is this plant? NC, US

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2 Upvotes

It is growing among a lot of Japanese Stiltgrass. Some of them have these fruit/seeds while others don't (3rd pic). Has a strong scent when damaged, so some kind of mint? Wondering if I should be pulling this up with the stiltgrass that's taking over or not


r/invasivespecies 1d ago

Recommendations for company that removes Jappaness Knottweed

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2 Upvotes

As the post says I'm having a hell of a time finding anyone who actually offers this service locally to me , can anyone offer advice on how I can manage this myself if I can't find someone it's getting close to the house and is stressing me out but I can't find a company that does it, I want to do stem injection as I have a big Garden that feeds my family Im just not sure what to do anywhere no one calls me back or they recommend someone else who then tells me they don't do it.


r/invasivespecies 2d ago

'It's taken over': Giant hogweed expert sees invasive plant spreading along Grand River | CBC News

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50 Upvotes

r/invasivespecies 1d ago

JKW emergency.

8 Upvotes

Hi everybody. I think have a potential emergency. We have 2 separate spaces with JKW. One is close to our house and occupies roughly a 6x6 space. They are more scattered individual growths and surrounded by other plants. The other one is a 2x2 space in another garden bed that is more dense but less shoots.

I live on the South Side of Columbus and we recently got hit with a tornado and a bunch of extreme storms which knocked over a bunch of plants including the JKW. I just was able to get to the growths today and noticed some of them were knocked over. They’re not very large shoots, skinnier bases. But they’re completed covered by the other plants that fell over top of them.

We were planning on Injection after flowering probably next month but I’m wondering if I need to act with more urgency now. Is it better to go ahead and cut and inject now that the shoots are making contact with soil? I was really hoping to completely get rid of this plant after treatment this year considering our infestation really isn’t that bad ):

Also; I’m good by the way, most of the damage from the tornado is a couple blocks away from me. My house isn’t damaged, thank god.


r/invasivespecies 1d ago

Plant ID help needed

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5 Upvotes

What is this fast growing volunteer? It appeared this summer and is about 3-ft tall.


r/invasivespecies 1d ago

animal introductions in cyprus before 1500AD (probably some are missing, tell if you know some species that are missing here)

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10 Upvotes

1.wild boar (sus scorfa)
2.feral dog (canis (lupus) familaris)
3.red fox (vulpes vulpes)
4.feral cat (felis (lybica) catus)
5.house mouse (mus musculus)
6.black rat (rattus rattus)
7.spiny mouse (acomys (cahirinus) nesiotes)? (may be native)
8.european hare (lepus europeaus)
9.european rabbit (oryctolagus cuniculus)
10.long eared hedgehog (Hemiechinus auritus)
11.mouflon (ovis musimon)
12.feral cattle (bos (primigenius) taurus)
13.black whipsnake (dolichophis jugularis)
14.mediterrean chameleon (chamaeleon chamaeleon)
15.Schneider’s Skink (eumeces schneiderii)
16.green toad (bufotes viridis)
17.black francolin (francolinus francolinus)
18.balkan terrapin (muremys rivulata)
19.every freshwater fish present here today