How to Kill a
Tree Without
Cutting it Down
By: John Lampe
Licensed Pesticide Applicator
Here are answers
to questions you
might have.
First Question
Can I leave a
standing dead
tree?
4
Standing, dead
trees are great
habitat for wildlife.
Woodpecker
hole
Work of a pileated
woodpecker on a
dead aspen tree.
However, be careful!
A dead tree will eventually fall.
Make sure that it will not fall near people or
property.
Second Question
Should I use
herbicide?
Herbicide will kill a tree
faster and with greater
ease and certainty.
If you don’t want to use herbicide, see
the Green Shoots® video:
“How to Kill a Tree without Chemical.”
Second Question
What time of year?
Definitely not
in springtime.
Early summer is not
so good either.
Fall and early winter
are best.
Why?
Inner bark
or phloem
(live tissue)
The objective is to introduce the herbicide into
the live inner bark or “phloem.”
Phloem sap transports energy and nutrients
between the leaves and roots.
In springtime, phloem sap is rising . . .
Sap
. . . To feed leaf growth.
Sap
In fall and winter, phloem sap is falling . . .
. . . to store energy and nutrients in roots.
The herbicide will travel with the sap. . .
Herbicide
Sap
to reach the roots and kill the entire tree.
Third Question
How do I
use the
herbicide?
Select the right herbicide: glyphosate
works well and is readily available to
most consumers.
The herbicide should have active
ingredient of at least 20%.
Read and follow the label on the
herbicide.
Dilute the mixture with water to about
20% active ingredient.
Pick a tool that can cut into the bark.
Use a chisel (or knife) for trees with thin bark.
Use a hatchet for trees with thicker bark.
Use a drill for trees with very thick bark . . . or
. . . if you don’t like using a hatchet or chisel.
½ inch drill bit
Inner bark
or phloem
(live tissue)
The objective is to introduce the herbicide into
the live inner bark or “phloem.”
With a hatchet or chisel, cut the slit at a 30
degree angle into the bark.
Inner bark or
phloem (live tissue)
If using a drill, drill at 45 degree angle.
Sapwood
You should see white sapwood which is moist.
Using the hatchet, for example . . .
. . . cut the first slit . . .
6 inches above ground level is ideal but . . .
6 inches
. . . you can cut higher if cutting low is difficult.
25 inches?
Leave the little flap
of bark if possible
to help retain the
herbicide.)
Immediately apply foam
herbicide to the slit –
don’t wait longer than a
few minutes.
Frill cuts – several with foam herbicide.
Apply the foam to the slit and inside of the flap.
The foam will slowly dissolve . . .
. . . travel in the phloem and down to the roots.
Inner bark or
phloem (live
tissue)
Cut another slit at the base of the tree.
About 1 inch apart.
1 inch
Apply herbicide in 2nd slit.
Cut all slits and apply foam herbicide.
Or, if using a drill, drill all around the base.
Do not disturb the tree for about a year.
To see all our products search:
“Green Shoots Foam”

How to Kill a Tree without Cutting It Down