If you are looking for how to kill a tree without anyone knowing then you are in the right place.
After extensive research in tree-killing, I have come up with the best ways to kill a tree undetected.
First off, I don’t recommend and I am not endorsing that you should kill your neighbor’s tree.
That is their property and you could get in trouble with the law.
If you have a problem with a neighbor’s tree, I would suggest talking to your neighbor and working out an arrangement to have the tree removed.
Offer to pay for half the tree removal bill or all of it if you really want it gone.
The best way to quickly get a few free quotes from local professionals is with HomeAdvisor.
To create better content and resources to help you kill and remove trees please tell me a little about your situation in this ONE Question Survey and recieve 50% off any future tools and resources…from Steven Cooper.
However, let’s say you needed to kill your own tree without your kids or your tree-hugging neighbor knowing, then here are the best ways to kill a tree undetected.
The Best Way To Kill A Tree Undetected FAST
Drill several holes in roots under the soil and pore Tordon in it. Tordon is the best tree killer on the market. It’s what most arborists recommend for killing the hardiest trees.
To learn more about Tordon and how to use it correctly see my Tordon RTU: Complete User Guide.
Normally, you would cut the tree down and treat the outer layer or cambium layer of the tree with Tordon to kill it but I think that drilling several holes into the roots through the dirt would work as well.
If you drill holes into the roots below the dirt then no one will be able to detect the hole in the wood. If you drilled a hole above ground it may bit more tricky to hide the hole.
You could use a piece of bark and some glue but I think it would be way easier to find a root that is just an inch or so under the soil and drill into it and fill with Tordon.
I would do this to several roots around the tree. After just a few days the tree should be dead.
For more information check out my article on how to kill a tree.
How To Secretly Kill A Tree
Now this way is super sneaky. I stumbled upon this as I was researching tree killers. There is a tree killer called Gordon’s Stump Killer and as I was reading reviews I found this.
“Put this on a cottonwood tree stump and it killed all the other live cottonwood trees within a 50 feet radius and they were over 50 years old. I am sick about it and cried.”
Somehow Gordon’s Stump Killer can kill other trees around it. So here’s the strategy. Kill an adjacent tree or bush with Gordon’s Stump Killer and all trees close by should die as well. There are no guarantees this will work but if what this guy said is true then Gordon’s Stump Killer could be the solution.
Slowly Poison A Tree Undetected
Salt can be toxic to plants in high dosages. One idea that I found a comment on my YouTube video was to dig a hole next to the tree and fill with Epsom salts and cover back up.
You would have to use a lot of Epsom salts to make this work but luckily Epsom salts are fairly inexpensive. Digging a hole undetected may be a little tricky and covering it up especially in grass.
A major issue I see with this idea is that digging a hole next to a tree is not easy because of all the tree roots in the way.
This idea is definitely not the best but I think it would work and the tree would die slowly.
Another way to slowly poison a tree without anyone knowing is to use copper nails. I have read mixed reviews with this idea and when it does work it takes a long time like over a year to kill a tree but basically, you can hammer copper nails into a tree and the copper will slowly poison the tree to death.
To do this undetected you would need to hammer the nails into the roots, remove a piece of bark and hammer nails and glue the bark back to the tree or build a tree fort or attach a sign to the tree using copper nails instead of steel.
This could work but I still think drilling holes into the roots and poring Tordon in them is the best way to kill a tree undetected.
Best Ideas for Secretly Poisoning A Tree From Youtube Comments
I have collected all the best ideas from all the youtube comments of the video I made for How To Kill A Tree Without Anyone Knowing. You might get a kick out of these because I sure did.
My personal favorite: Just firmly attach a Trump for President sign to the tree…
(Nothing against Trump there are just some real haters out there who would probably kill a tree if there was a Trump sign attached to the tree.)
Cut the half that is in your yard.
Save the husks off black walnuts, put in a 55gal drum and fill with water after week water your tree with the nasty water for a couple of weeks, the tree should die soon
Drill a half inch hole getting as close as possible to the center…may drill more than one around the girth of the tree near the base…insert ⅜ copper tubing and plug the holes with soft mud.
I have pounded solid copper pennies late 50’s to 60’s into the tree it will soon die for about 10 cents.
Next time you manage to find ten pennies that are 60 years old make sure to save them until you need to kill a tree without anyone knowing.
Vinegar kills plants- I know because I found out from a youtube video claiming to “liven up” the tree leaves of drooping or low in color…heck no I killed them…it was apple cider vinegar
Do it when they are on vacation.
Use the 4th of July to cover up blowing your neighbor’s tree up with fireworks.
Best way to kill a tree. Every night for about a week, pour a quart of Muriatic Acid around the base of the tree. Be cautious that you don’t stand downwind as it will smoke and will burn your eyes or breathing it will harm your lungs. Within that week all the leaves should start falling from the tree. If you don’t see leaves falling, continue feeding it for another week. Once all the leaves fall, the tree will not recover. Muriatic Acid is inexpensive and can be bought in 1-gallon jugs at Home Depot or Lowes. You will find it with the pool supplies. Two years ago the price was $3.65 per gallon. Today it’s about $8 at Lowes or buy the 2-gallon size for around $11. You’re looking for the 31-1/2 % concentration product.
Copper nails hammered into the tree. Do this late at night so no one is awake to see you. Do what you can to muffle the noise, make sure the nails are all the way in so they won’t be noticed. My dad swore by this method.
Melt salt in boiling water pouring this in holes around the Root system, or use a spade to peel grass
Back from roots pour water into the ground below root level of the grass.
Or packing around roots with ROCK-Salt.
Pile mounds of rich soil around the trunk to about 2′ deep and plant a garden in that soil that gets watered regularly. The wet soil against the trunk will bring bugs that destroy and eat into the bark and kill the tree. Takes a few years, so enjoy the garden. Remember, when the tree is THERE, it’s a shade garden, but once the tree has fallen, it may be a sun garden. Plan accordingly.
I’m actually surprised no one has suggested this. The best way to discreetly kill a tree that also has all the hallmarks of natural tree death isn’t to drive copper nails into it, as that is too obvious. Rather use chemistry as an aide. If you can make Copper sulfate that is still in aqueous form, I.E. In Sulphuric acid. All you would need to do is come up with a means of delivering it to the roots. Whether it is a tree in your yard or close to it, all that needs to be done is to dig up a piece of sod in your lawn and fold it over. Then proceed to dig a least a foot down forming a trench and then dumping the contents into the trench. Dump a lot to ensure an adequate amount disperses and the tree will soak it in, it could take a year or two, but the chemical composition exists in nature, to begin with. If you need faster results, just dump round up and or any other herbicide well beneath the surface of the lawn. Upon completion of dumping, fill the hole or trench with clean fill and sod over the area. You may need to use a sprinkler to ensure your grass survives. However, grass’ roots don’t go much deeper than a few inches, to begin with hence why you need to dig deep. Happy hunting.
So you want to kill a tree under cover. Loads of copper spikes, and electricity. Use an acidic fertilizer for pine trees. Overwatering it daily on top of all this. At night under the cover of darkness hit it with a hatchet to girdle it. Or bore a hole halfway through the tree and plant an M-80 in it. Place a sign like die commie dork in crayons and light the fuse and run inside your house. They will think neighborhood kids assaulted your tree.
Or you can just call Harvey Updyke he will get the job done for you.
I always heard borax would kill a tree, but honestly, I have yet to try…
All you need to do is water the tree with water that has a very low PH balance. The high acidity will kill it.
Simple Way: Have kids dig hole next to the tree while playing. After dark, fill the hole with Epsom salts and cover with dirt. Sooner or later it’ll succumb.
Black powder in a borehole works but people will definitely know, the younger tree’s the trimmer works but older ones the bark is too thick, just use a hand saw to score the bark all the way around into the inner part of the tree it will die.
I hope you found some of these ideas as amusing as I did. This information you should know exactly how to kill a tree without anyone knowing.
If you have other ideas you would like to add to this post leave them in the comments below.