Ask a Question forum: Killing tree roots to keep from sprouting new trees

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gotoit
Dec 27, 2016 5:25 PM CST
A birch & a Chinese Hackberry have been cut down, leaving a stumps which I would like to be ground down. What can I do to poison the roots before the grinding takes place?
Name: Carol
Santa Ana, ca
Sunset zone 22, USDA zone 10 A.
Charter ATP Member Hummingbirder Lover of wildlife (Black bear badge) Orchids Region: California Plant Identifier
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ctcarol
Dec 27, 2016 6:52 PM CST
There are many "stump killers" on the market, or RoundUp concentrate will work if you pour it on a fresh cut. It does work best if the cut is fresh, before it can callus.
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
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DaisyI
Dec 27, 2016 8:55 PM CST
You don't say where you live but its really the wrong time of year to kill a stump. Round Up, Brush Killer and stump killers all work because the poison is pulled down into the roots. In the spring, when the sap starts rising, you can try but the very best time of year is in the fall, when nutrients are being pulled down into the roots for the winter. (a VERY scientific explanation Smiling )
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Name: Porkpal
Richmond, TX
Charter ATP Member I was one of the first 300 contributors to the plant database! Keeper of Poultry Farmer Roses Raises cows
Garden Ideas: Level 2 Celebrating Gardening: 2015 Plant Identifier
porkpal
Dec 28, 2016 12:04 PM CST
Actually I've always heard the opposite: fall is a good time because the sap is going down to the roots - which you are trying to kill.
Porkpal
Name: Philip Becker
Fresno California (Zone 8a)
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Philipwonel
Dec 28, 2016 12:06 PM CST
I dont think you want to wait a long time before you grind stumps out ? Shrug! I wouldnt !!! I would grind stumps. And in spring any suckers that come up. Dig down to root and drill some holes in them. Not all way through. and pour straight round- up in them. I dont believe the stump killer will kill roots that are 10, 20, or more feet away.
😎😎😎
Anything i say, could be misrepresented, or wrong.
Name: Rick R.
near Minneapolis, MN, USA zon
I was one of the first 300 contributors to the plant database! Garden Sages The WITWIT Badge Garden Photography Region: Minnesota Hybridizer
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Leftwood
Dec 28, 2016 3:14 PM CST
porkpal said:Actually I've always heard the opposite: fall is a good time because the sap is going down to the roots - which you are trying to kill.


Confused
Maybe what you have heard is the opposite, but what you just said is the same as Daisy's explanation!
In the fall, the sap (that carries nutrients) is going down to the roots, at least more so than other times of the year.

Name: Porkpal
Richmond, TX
Charter ATP Member I was one of the first 300 contributors to the plant database! Keeper of Poultry Farmer Roses Raises cows
Garden Ideas: Level 2 Celebrating Gardening: 2015 Plant Identifier
porkpal
Dec 28, 2016 3:56 PM CST
Oh, yeah, right, Ooops.
Porkpal
Name: Philip Becker
Fresno California (Zone 8a)
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Philipwonel
Dec 29, 2016 10:08 AM CST
Im in a curbumbilem 😕y'all !!!
Its the middle of winter.
Is the sap still going down ???
If it isnt. Wouldn't it be a waste to drill holes and apply stump killer ?
😎😎😎
Anything i say, could be misrepresented, or wrong.
Name: Porkpal
Richmond, TX
Charter ATP Member I was one of the first 300 contributors to the plant database! Keeper of Poultry Farmer Roses Raises cows
Garden Ideas: Level 2 Celebrating Gardening: 2015 Plant Identifier
porkpal
Dec 29, 2016 3:40 PM CST
Here it is still more like fall. In the southern hemisphere it would spring or summer. I guess it would depend upon where @gotoit lives.
Porkpal

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