/r/invasivespecies

Photograph via snooOG

Focused on the very important environmental issue of noxious exotic species from around the world invading, degrading and destroying native ecosystems and costing nations billions.

Our submission content consists of news, educational resources, discussion and photos of field sightings.
The goal of the sub is to better inform and educate our subscribers on the critical topic of invasive species.


An invasive species is an organism not native to a specific location, with a sustained population and which damages the environment, human economy and/or human health

This is an important topic, since many organisms, especially island populations, are threatened or already extinct at the hands of these noxious invaders.


Post flairs

Sighting

For reporting sightings of invasive species. Please include a location and proof!


Management

For questions, discussions and articles on managing invasive species.


News

For full articles on invasive species issues.


Impacts

For posts on the problems invasive species cause.


Law and Policy

For the laws, policies and regulations around invasive species.


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  • /r/invasivespecies

    16,699 Subscribers

    3

    Is this Japanese Barberry?

    1 Comment
    2024/03/26
    22:28 UTC

    9

    What is this invasive vine!? 5 Years now and still unable to identify. You are a genius if you can figure it out. They are sprouting up all over my otherwise healthy green grass lawn!

    East Coast USA here, though this plant I suppose could come from any place on earth. Have not been able to identify it through many google image searches. Its super hardy through the winter. New sprout has light green reddish edge and roundish leaves. As the vine matures, it grows 3 lobes with what looks like a whitish stripe in the middle. These leaves always pop off the main stem in pairs, one next to the other one. They are popping up all over my otherwise healthy green grass long. They look like baby "suckers" some might call them, like little fruit trees, but grow into a vine that climbs up and chokes out trees and anything nearby!

    What are they first of all!!! Been years and still not able to identify them.

    https://preview.redd.it/h3m1hfk8jlqc1.jpg?width=2737&format=pjpg&auto=webp&s=d4d34901aaf0691292060bff13d3a7281b85a827

    11 Comments
    2024/03/26
    03:16 UTC

    7

    Japanese Knotweed?

    Hi all,

    As in title, just bought a house with a suspiciously Japanese Knotweed looking plant.

    Would anyone here consider themselves expert enough to identify?

    Thanks, Dipole

    9 Comments
    2024/03/24
    21:47 UTC

    1 Comment
    2024/03/21
    13:05 UTC

    9

    Zip tie girdling Bradford pair?

    Some Bradford pairs popped up on the edge of my property. I want to kill them, but I’m not really up to using equipment (chain saw, axe, hatchet). Also I don’t really have the money to higher the job out. This lead me to the idea of just girdling the trees by zip-tying them. I’m not worried if they stay standing for a while or take some time to die. I would get some thick zip-ties and place 3 on each tree. My real question is would this actually kill them? Would it only work on the young ones? Anyone ever tried something like this?

    11 Comments
    2024/03/21
    00:25 UTC

    4

    Controlling Japanese Knotweed stand at base of tree

    I've read on here about ways to control Japanese Knotweed but mostly discussion was about how to control it within lawns. What about right up against the base of an established swamp maple. I'd really prefer not to use roundup or another herbicide, and sounds like some could be bad for the tree. Or maybe a tree of that size won't be affected (at least 12in trunk diameter)? Any hope that the tarping and smothering method will control it? I can see the growth spreading 3-6ft feet from the base of the tree in most directions.

    7 Comments
    2024/03/20
    02:39 UTC

    18

    Anyone have success containing an existing stand of golden bamboo? Will the expense be worth it?

    When we bought land a few years ago, the previous owner had planted ornamental bamboo, which we soon realized was the aggressively spreading golden bamboo. It's now taking up an area of 40 ft long by 20 ft wide. Our landscaping company insisted for the last 2 years that just mowing the perimeter was enough. It's clearly just pushing the rhizomes farther out until they'll pass our fence or enter an overgrown area we don't mow. The roots already spread at least 15ft beyond that 40x20ft area now. Has anyone effectively contained an area this large by using a HDPE, high-density polyethylene barrier like Bamboo Shield? It seems like it's mostly marketed as a method for controlling new plantings. Our project is complicated by being near a couple large established trees, whose roots we'll probably have to cut through pretty dramatically to install the barrier. We prefer not to use herbicides on the property if we can contain it otherwise. The bamboo shield project looks like it will cost us at least $1,000 as a DIY project (for materials and rental of a trencher). We haven't gotten quotes on having a company do it, and I don't trust our landscapers to do it after their terrible advice. Will this actually work and be worth it to prevent the bamboo from taking over more of our acreage? Any other alternatives?

    34 Comments
    2024/03/20
    02:31 UTC

    15

    Asian carp, found in the meramec river, St. Louis.

    0 Comments
    2024/03/18
    01:16 UTC

    9

    Amur honeysuckle, Knoxville area, TN

    I recently visited Knoxville to visit the natural areas and botanical gardens and noticed something...off. I noticed a green, dense canopy in the middle of early spring that i found out was entirely comprised of Amur Honeysuckle. The entire city is covered in it from one side to another, and it seems to especially cover natural areas and limit biodiversity in them. I hope that if more people voice their concerns over this, local officials and organizations will work towards eliminating at least some of it from their local parks. I can't really do much though, im an out of towner :\

    15 Comments
    2024/03/17
    15:21 UTC

    26

    Removing invasive lionfish while diving in St. Croix

    0 Comments
    2024/03/15
    21:35 UTC

    25

    Invasive grasses play a huge role in worsening wildfires across the western US, especially in deserts. This magazine feature unpacks the problem with grass.

    7 Comments
    2024/03/14
    17:09 UTC

    0

    This is so gross.

    This would be a third of the ones I found today in the dog door frame. We moved into this home 5 months ago. I am so disgusted by these little turds. I have tried everything I can think of.

    Not sure if I am correct but we call them Japanese lady beetles. Lady bugs dont ingest houses and when I was growing up they were cute. I live in Rural Central Minnesota. Most people have problems with these jerks but I keep finding them.

    Always willing to accept advice.

    6 Comments
    2024/03/11
    06:18 UTC

    4

    can i burn english ivy?

    i have a lot of english ivy (Hedera helix) in my back yard that i’ve been able to pull out of the ground, dig up roots, and cut vines from trees and was wondering if any of these can be used as a firewood? thanks!

    8 Comments
    2024/03/08
    18:09 UTC

    2

    Is this Guinea grass (Megathyrsus maximus)?

    It’s being grown for hay in Texas.

    0 Comments
    2024/03/08
    04:26 UTC

    2

    Is it too late for invasive Boa Constrictors to be eradicated from Florida and the everglades?

    As many folks on here probably already know, the Burmese Python's invasion of the everglades has gotten to the point where it's considered highly unlikely they will ever be completely eradicated. However, In my research of the Boa Constrictor's similar invasion of Florida and the Everglades, I have found no such claim for them. I wanted to hear the opinions of folks, do you think it's possible that the Boa Constrictor still has a chance of being eradicated from Florida and the Everglades, or will it become just as entrenched as the Burmese Pythons have?

    4 Comments
    2024/03/07
    20:48 UTC

    10

    Dealing with buckthorn infestation, think I may have messed up - can it be saved?

    I am dealing with a pretty bad buckthorn infestation in my backyard.

    There are some quite mature trees, many juveniles (3" and under) and tens of thousands of seedlings.

    Because the infestation is so bad, it has been difficult to physically move through the area to treat the trees. It is so dense that the trees don't even fall down when I chop them because their canopies are intertwined.

    I have been using the cut stump method to treat the juvenile trees. Cutting the trees serves partly to kill them, and partly just to clear them out so I have room to work.

    There isn't enough room for me to feel comfortable using my chainsaw, so I have been cutting them manually with my bow saw.

    Because of the cramped conditions and the fact that I am using a manual saw, I found that it was a lot less fatiguing to cut them off maybe a foot to 18" from the ground.

    Immediately after cutting, I have been generously wetting the exposed end with triclopyr.

    After what I had thought was a very successful day yesterday in which I cut down over 100 trees, I did some reading, and now I think I may have made a mistake cutting them so high up.

    I hadn't thought it would make much difference, since the herbicide would get sucked down into the roots anyway, but everything I am reading now seems to say you should cut as low to the ground as possible.

    Did I mess up? Does this mean the trees are not going to die, or maybe that I will just have a somewhat lower kill rate?

    Could I re-cut them and reapply herbicide, or it it too late for that now?

    22 Comments
    2024/03/04
    15:28 UTC

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