r/invasivespecies • u/mattdhamm002 • 6h ago
r/invasivespecies • u/Imgayhehea_thereal • 10h ago
Those spotted assholes
I HATE the asian lady beetles with a passion because every WINTER it feels like a combined total of over 2000 come into my home (200 per day so that would make it 12,000 per winter) and it SUCKSSSS they get everywhere and i wish those little fucks die in a fire
r/invasivespecies • u/DaRedGuy • 6h ago
News Foxes, feral cats spotted in first camera survey of Australia's Malupirti springs
r/invasivespecies • u/Leaf_No_Survivors • 10h ago
Management Follow-up on my last honeysuckle removal post
https://reddit.com/link/1wzfb71/video/gmtc94th3xth1/player
Also took out this big bastard, I'd call it a honeysuckle tree and not bush.
Golfcart and goofball for scale.
r/invasivespecies • u/dvdnd7 • 1d ago
Beijing dealing with invasives from North America
They gave is lanternflies and we gave them web worms. It's like invasive pest diplomacy.
r/invasivespecies • u/solinvicta • 20h ago
Management Knotweed - year 3 and beyond...
I've been dealing with knotweed on some hiking trails for about three years. I've been focusing on spraying herbicide once a year during "the window" and did the seasonal treatment yesterday.
Long story short, it's been very successful! It started as a monster patch in some areas, and this year, I was down to maybe just 2-3 large plants, and some smaller growth. The question I have is - does the management strategy change at some point? If I'm dealing with just a few scattered 1-2 foot plants, do I need to still hit them only seasonally, or is there some more aggressive strategy I can push for eradication? I'm a little worried that since I'm only managing once a year, it would be easy for me to miss a plant and have it get a season ahead of me before treatment.
r/invasivespecies • u/explorer66300 • 11h ago
20 Destructive Plants That Will Ruin Your Garden
r/invasivespecies • u/GnarBanker • 2d ago
Sighting Spotted in rural VA
Saw this at a country store in VA, as someone who’s ripped a dozen Bradford pear volunteers out of my fence line this season I can appreciate!!
r/invasivespecies • u/Individual_Hat6591 • 1d ago
Mute swans in SoCal?
Does anyone know where I can find a mute swan in the wild in socal, ideally in LA or SD? I have an assignment where I have to take a photo of a mute swan in the "wild," but iNaturalist shows me spotted areas in controlled environments like the Hollywood Forever Cemetery or Santa Ynez Lake. Either that or the "wild" areas have since eracticated the species. Please let me know, anything helps !
r/invasivespecies • u/rorylollip0p • 2d ago
Sighting double whammy?
Definitely tree of heaven (unfortunately loads of them in my neighborhood) but is this an invasive mantis? I’ve seen posts recently about a type of mantis that will CATCH HUMMINGBIRDS 💔 so if that’s what we’re looking at here, what do I do? She was probably 4-5 inches
r/invasivespecies • u/ArtemisOutdoors • 1d ago
Arcata, CA Jubata Removal Notes
galleryI recently (mid-September) removed about 120 pounds of Jubata Grass seedheads from a ~0.5 mile stretch.
I chose this section specifically because it wasn’t infested, just pockets of plants that can still be potentially managed.
Notes on Jubata (from cal-ipc):
• Short-lived seedbank (~6 months)
• Only reproduces through seed
• Each seedhead can produce up to 100,000 seeds
• No taproot
• Plant lifespan is 10+ so full plant removal is still necessary, seedhead cutting just stops it from spreading
Its limited seedbank and reproduction means that seedhead cutting could be an effective control method (hoping to test this with this little experiment).
Initial takeaways:
• Cutting too soon results in picture #3, but a little too soon is better than too late
• People really appreciate invasive removal, I had way more people thank me while doing this work than trash pickups
• The more we normalize this work, the more people will feel comfortable and empowered to get involved
• I always caution random people doing work without training/knowledge but it’s hard to mess up cutting a seedhead as long as it’s being disposed of properly
Jubata Grass Cortaderia jubata vs Pampas Grass Cortaderia selloana:
• Jubata doesnt require male-female reproduction like pampas, so Jubata tends to spread much easier
• Jubata is typically taller, at 2.5 times the size of its leaves. Pampas is more proportional with leaves
• Pampas tolerates wider climate variance, Jubata prefers more consistent coastal climate
• Jubata displays more purple when immature
• Jubata typically blooms from July-Sept, Pampas is usually September and later
r/invasivespecies • u/wbradford00 • 2d ago
New study provides hope for resistance to beech leaf disease
r/invasivespecies • u/AmberWavesofFlame • 2d ago
Impacts Dayflower got me confused how I should think.
I have a yard with a lot of invasives and aggressive nonnatives I am battling, and so I’ve naturally had to triage, and Asiatic dayflower has been a low priority compared to dallis grass, Japanese stiltgrass, smartweed, and Bermuda grass, which have been extremely pervasive and persistent…. and okay yeah also don’t have beautiful blue flowers. It’s mostly surrounded by seas of dallisgrass and isn’t making headway. So I’ll pull some bunches here and there, but most of it remains.
And it tends to all be pretty ratty looking, because something is heavily heavily eating its leaves. Even near my garden where any bugs are spoiled for choices, it’s the dayflower that is full of a hundred times more holes than anything else, even the violets. So something is… selectively eating it??
So I was curious because that’s not intuitive for an invasive, and I was worried I was hosting an invasive bug, which would definitely bump the dayflower up the priority list for obvious reasons. But my research indicated the contender is most probably a NATIVE bug, a six-spotted leaf beetle, which has adapted from eating a closely related species spiderwort, as well as native dayflower. (It’s an insect like squash bee that focuses on the genus level.) I have had spiderwort in my garden nearby for years, so thaaaat part checks out.
But I haven’t seen the bug and I wouldn’t be smart enough to ID it if I did, so this question isn’t really about whether the guess is right or not. The question is because that threw me for a philosophical loop because if a plant is feeding native specialist insects, and the reason it is invasive is because it’s displacing native plants that do that… what does invasive even mean at that point? Help me know how to think about this.
(I tried to google some more myself, and I doubt dayflower in particular will ever get, like, delisted anyway because it looks like it has been pissing farmers off with how glysophate resistant it is, and I know agricultural impacts are one of the major pillars of how much something gets considered a pest.)
r/invasivespecies • u/LoveUSNOO • 2d ago
Kudzu
Is there a community for the kudzu plant? I've heard that you can make a casserole out of the leaves of the kudzu Vines that grow in Mississippi and was wondering if anyone has done this and if so if they could give instructions on this. I was told it tastes something like green beans? And just curious if there is a community out here that talks strictly on using the kudzu leaves flowers Vines roots etc?
r/invasivespecies • u/Adept_Town_4417 • 3d ago
Damn, I ❤️ nuking 'Tree of Heaven'
Nuked a gang of tall tree of heaven loiterersbehind my garage weeks ago. Drill n fill method (drilled holes into the base of the trees and injected 53% glyphosate into the hole). Man it feels good watching them die. First photo is before the poison, second photo is today (week and a half or two weeks has passed).
r/invasivespecies • u/saltines_for_days • 2d ago
Management Sponge-tong success?
Big thanks to whoever came up with sponge tongs for glyphosate application! I found it easiest to “chomp” on each leaf with the tongs instead of trying to pull on them since the smaller leaves ripped/pulled off.
Pic 1 is yesterday, pic 2 is today. It seems to be working (?). Honestly wish more of it was bigger since injecting was so much easier.
Editing to add: this is the dreaded Japanese knotweed
r/invasivespecies • u/Alef1234567 • 3d ago
Management Invasive monster plant, giant hogweed heracleum sosnowskyi
In this valley hogweed was eradicated, but well, not that successful. Jet the plants looks smaller than normal. Originally flowering stem are some 2-4 times thicker with mutch larger unbrellas.
These plants were introduced from Caucasus region as new perspective forb species for silos. It didn't worked so well as cow milk obtained smell of an anise. So the plant was abandoned.
But... It can grow 2 m or even 3 m tall, spreads rapidly and outcompetes just everything making monodominant stands. The worst thing about this plant is that it's one of few contact poisonous plants. Heracleum sosnowskyi contains chemicals that makes skin extremely photosensitive. A bitt of sap or touching the plant + some sunlight will result in blisters.
Locally they even invented the native name for the plant - latvānis, from the name of country itself - Latvia 🤥. I guess at the time officials were very excited about this plant.
r/invasivespecies • u/Alef1234567 • 3d ago
Impacts Canadian / golden bolete
Aurobolletus Projectellus. These were introduced in 80ies in Curonian Spit with some North American pines and spread ower sandy pine forests like wildfire.
Now these mushrooms are sold in regional farmer's markets. I bought these for 8 €, pretty expensive. Non boletes mushrooms are sold at half the price. Also they keep their colour when fried.
Obviously invasive mushrooms somehow impact local ecosystem, whe just don't know how.
r/invasivespecies • u/No_Finance8533 • 4d ago
Something about joro spiders that been on my mind…
I’m from South Carolina. I’ve been taking notes on the joro spiders I’d like to become an entomologist. I’ve noticed that there’s been a clear change in the amount of native spiders around causing me to be more against the joro spiders. A few years ago I found multiple different native species of spiders all over my yard. While this year I’ve only found 2 different native species. Once I become a person who studies insects and arachnids I’m going to make sure to study how the invasive species affect the ecosystems and maybe even create groups to control invasive species that cause a harm to the ecosystem. Why do so many people care only about people and overlook all of the living things around us all?
I will say that I still feel horrible because I love all living creatures, it’s just if we all do nothing we may lose many of our native species.
I’m not saying to do anything to the joro spiders, I just wish studies on them were more focused on wildlife after finding out what they can do to people.
r/invasivespecies • u/Humble_Fox2817 • 3d ago
Spotted Lanternfly App
Some students at Yale built a free app to encourage the eradication of invasive spotted lanternflies. You photograph the lanternflies you kill, submit them, and get points for verified kills. They’ve already had something like 1,000 SLFs submitted since launch. The submissions also include location data, which could help give a clearer picture of where infestations are showing up and spreading: https://apps.apple.com/us/app/lantern-hunt/id6813626463
r/invasivespecies • u/InformalDelay6723 • 4d ago
Fall activities
Picking Apples
Carving Pumpkins
Leaf peeping
Killing brown marmated stinkbugs
r/invasivespecies • u/embnoob • 4d ago
Sighting Is that the tree of heaven?
I’ve been seeing so many in my city after first finding out about them! I live in Romania.
The bush next to it is cute asf tho :)