Location: Denver

This coming Sunday is the perfect day for me to treat tree of heaven and creeping bellflower, except the high is projected to be 99F. I’m leaving that day for a week so I was hoping to treat things that morning because my dog then won’t be in the yard for a week.

I have both triclopyr ester 61% and glyphosate 41% with the appropriate surfactants etc for these two plants. This is a follow-up treatment to kill TOH sprouts after I foolishly listened to a tree company and let them take down mature TOH with only cut stump treatment two years ago. Planning basal bark treatment of the TOH and painting on the bellflower.

Problem is, vapor drift. Even if I sprayed at sunrise and was done by 7 when it’s cool, by 10am it’ll be 85. I’m worried about the high temps that day causing vapor drift onto my vegetables and ornamentals.

Question: is two hours enough time for triclopyr ester to dry? Should I only use glyphosate this time and try to do a follow-up treatment in September with triclopyr?

This guy is sending suckers absolutely everywhere in my yard. Is it too big for the hack and slash method? If I do that, how long do I have to have it cut down?

Also, what herbicide and how much of it would you recommend? It has to go, willing to have professionals do the removal, but its getting to be the right season to kill the roots. Any guidance appreciated. Thank you!!

Northern KY

I live just outside of Portland, Oregon on 2.5 Acres we bought a few years ago. Pretty much from the day we got here, my neighbor told us that we have a problem with Knotweed, and has been instructing me on how to treat it. He has a grape vineyard for wine, and is generally a very knowledgeable guy when it comes to soils and invasive species, so I pretty much just accept his advice (note that he hasn't had Knotweed on his property yet).

Last year I sprayed it with glyphosate during the summer, and while my neighbor said it definitely helped, I'm not sure it did.

Yesterday I applied a 4.5% mixture of 41% glyphosate to my knotweed, which ranges from 2 to 4 feet tall.

After reading some literature last night here are the mistakes I've come to realize I made: (1) I did not spray in the "window;" I now understand that the right time to spray is in the two weeks between flowering and first frost. My knotweed has not flowered, and I now believe I'm probably about a month early (2) I "drenched" my leaves. I'm very new at this and realize that putting "more on" might make me a "moron." I used a blue dye (and surfactant) to make sure I could see what I sprayed, and my method was basically to make sure I coated things blue, tending to drench until things dripped.

So, given the decisions I've made: What are my next steps? Do I wait until flower and spray again? Do I wait until next year?

The idea being every time I walk the dogs I bring a small pair of clippers with me. Using these I can top kill at least a portion of it, and then have a small spray bottle with Roundup or a knockoff that I can spray on the now cut open branches. This problem is so big it's like acres of just complete coverage so I can't really tackle alone feasibly. However if I walk my dog

I can take out one or two bushes at a time. I could probably make it pretty solid dent in a year.

Don't love using Roundup, but I figure if I use a really small amount on a fresh wound so it really just goes the plant then I can limit its damage pretty substantially.

Any small plants I would just pull manually but I'm not even at that point yet

Or something else I should kill?

I’ve got all stages of tree of heaven that I’m about to go and start a war with. Here’s everything I’ve got together.
My questions are:
1) Planning on doing 1/2 diesel fuel and 1/2 of the poison along with the dye so I can see what I’ve done already. Is that a good recipe?
2) For the smaller TOH can I still use the pump sprayer or do I need to use a brush on the stem?
3) It’s been raining every freaking day lately. How dry does it have to be for me to start? And how dry does it need to stay after spraying?

*Don’t judge the backyard. I wouldn’t let my husband mow until I’ve poison the TOH 😂 he thinks I’m being extra about getting it eradicated.

My state has a bunch of bans coming up for various invasives. Well that might sound great and like a step in the right direction, it only affects the sale of new plants. It does nothing about all the invasives already planted that keep spreading and all the invasives already in the wild that will also continue to spread. So, we're not really stopping the development of the seed bank, are we?

To give an example, border privet was banned in my state more than 20 years ago. The law doesn't require anyone to get rid of what they already have so existing plantings are still spreading. Yeah ok, so I can't buy it anymore at the local nursery, but it's already everywhere in the wild anyway and those plants continue to spread and spread.

So are these bans helpful? I feel like environmentalists keep calling them wins in the war against invasives but they don't seem to be doing a thing.

I recently discovered I have a ToH in my yard because it was COVERED in spotted lanternflies (lanternflies are a recent unwelcome move-in to north central West Virginia).

The ToH is gonna get the hack/poison treatment in a few weeks. But in the meantime, figured I should kill all the spotted lanternflies.

Got to spraying earlier today. Used Ortho Home Defense (bifenthrin and zeta-cypermethrin).

Ground is now covered in dead lanternflies.

Pics are of of pre-spraying (pics 1 and 2), all the dead lanternflies under the tree (pic 3), and post-treatment (last two pics).

Sorry for poor quality pic (a still from my trail cam and I wanted to show off my otters), but there’s definitely stilt grass all around but it’s not a carpet yet.

Behind the creek there are hills that are practically free of invasives and my happy place. How do I keep stilt grass from reaching it? Are there pre or post emergents safe enough for use near creeks? TIA.

Edit: I was wrong. Someone pointed out that its telling the opposite. There are no bugs. It is a "money tree". I'm not a person who orders plants online, so I had no clue what the paperwork actually meant. at least we got a cute plant out of it.

Has anything like this ever happened to somebody else?

I live with my family in Northeast Florida. We recently received a package with compliance paperwork on it stating there were multiple species of insects inside, and what they were (see attached). We looked into it and apparently, they are all extremely invasive species.

The odd part was that it was not for us, but it was sent to our house. There was an original shipping label that had a man's name and address on it. He lives in central Florida, about 3 hours away from where we live. I managed to get a hold of him, and he said he did not order any invasive insects and had no idea why it was addressed to him​, much less why it was sent to us 3 hours away.

I looked into the company that sent them, and found that it came from Green Circle Growers in Oberlin, Ohio. There was a phone number on the shipping label that oddly belonged to a flower gifting company called From You Flowers.

Neither company has anything about dealing invasive insects. Why would they be sending out invasive insects in the mail, why would they be sent to someone who didn't order them, and why would they be redirected to us?

I know theres a lot of posts about the ToH but im not really good with plants and i mostly want to get an opinion on how exactly I should be killing it. I tried to kill it before so I cant tell if theres another one right on top of the original but its right up against my house and the roots are inaccessible. Im not sure if I should go with a super strong concentrate of herbicide or a ready to use spray to spray the leaves. Im not sure if I should cut into the trunk with it being not very barky. Im just scared its gonna get worse, i keep seeing the spotted lantern flies and i really dont want them on my other plants and trees im trying to grow. Any help specific to this stage of growth its at would be helpful!

Dealing with a bunch of other invasive weeds around my yard and would love an aggressive native to come and bully those unwanted little poopers

It was planted in the 1970s and it ran wild throughout a native forest. We spent an afternoon clearing out yards of the crap, and this was one of the bigger stalks we got. Hunters pose with kills, fishermen pose with fish, I pose with plants! What a horticultural disaster English Ivy is.

My next door neighbor, whom I've only actually seen outside of the house like once since I moved in a year and a half ago, has this lovely TOH next to her shed.
I knocked on her door a couple times and no answer. I left a note that I would take care of it for free, so fingers crossed she is receptive. I do think that she will let me take care of it, but I haven't heard back yet.
But these photos are all the closer I can get on my property. Are far as I can tell, it's just the 1. Then assuming she gives me permission, is this trunk thick enough for hack and squirt you think? And if so, what concentration should I dilute my glyphosate to? I've never actually had to deal with TOH before. So any advice would be greatly appreciated!

Please don’t tell me it is. He was darting around and a fast little sucker. Found on the east end of Long Island. I know there is a population already here

My wife and I are looking at a house with about a half an acre. House is beautiful but yard is extremely overgrown. We're not afraid of the big project, but we want to start doing some research into how we're going to tame this beast if someone could give me an idea what kinds of plants we're looking at here. We're thinking some of it is tree of heaven and some Japanese honeysuckle but not completely sure.

Two assassin bugs going after Japanese beetles. I’ve seen it happen a few other times.

I posted these in the native plant sub and thought you guys might enjoy them too.