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Old 08-30-2009, 05:14 PM   #1
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Need super heavy duty Plant poison. Help.


Hi all,

Since I moved into my newly purchased home in May, I have been trying to get rid of this tree plague. Needless to say, I feel like I am loosing the battle. I got rid of a very large tree and had the roots removed. I thought this would be enough but I still have these small trees poping up all over my yard. Some from new seeds and others from the roots (roots that extended through out the yard) that remained from the old tree. I have tried everything that gets sold at Homedepot or Lowes. I have applied the "Round Up' concentrated up to 3 times the recommended amount on some of these. It burns the plant but a week after the same root will grow a brand new and very green plant. Ever since I moved here I have been digging these things almost weekly from the root hoping that some day these will start to desapear... but I don't see much progress. I am tired and frustrated. I really need some help to figure out how can I poison these things to finally get rid of them. I don't care if I won't be able to plant or grow any new plants for a while. I just want to get rid of these things.

I just can't do any landscaping until I make sure I get rid of this "plague".

I live in Southern California if that makes any difference on how to deal with this tree plague.
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Old 08-30-2009, 09:48 PM   #2
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Need super heavy duty Plant poison. Help.


I had a similar problem with a plant in my flower beds, but on a MUCH smaller scale.

It was a plant that sent out shoots underground like yours does. I would dig it all out and a week or two later it was growing in again.

I finally had to dig down deep into the soil to find all of the roots. I used a shovel to dig the dirt and with my hands I broke the dirt away from the roots and pulled them out.

So far so good.

How far down do you think the shoots are below the surface? If you can find out and they're not down too deep, maybe you could rent a Bobcat (or something like that) to dig up your yard and pull out each root. What a pain that would be, but if you've tried everything else, maybe this is the only way to get them all out.

What is the name of this tree again? I think you said it in your other post about this problem. There's a guy here who does a radio talk show about gardening and he's a master gardener. If you have the name of the tree, I can go to the store he owns and ask him for advice.

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Old 08-31-2009, 04:23 AM   #3
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Need super heavy duty Plant poison. Help.


apply glyphosate (Roundup Tree Stump & Rootkiller or Deep Root Ultra Tree Stump & Weedkiller) or triclopyr (SBK Brushwood Killer)

You must apply this to the main stump

The tree in question is alanthus( tree of heaven)
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Old 08-31-2009, 06:00 PM   #4
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Need super heavy duty Plant poison. Help.


Cover it with black plastic? Cover it with clear plastic to solarize the soil. Search that term for more specifics.
Or apply a soil sterilant herbicide. Read the label- some last for up to a year, others not quite as long. A good dose now and you'll be ready to plant next spring.
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Old 08-31-2009, 08:02 PM   #5
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If that tree is the same tree I had at one Apt it will push up shoots thru BLACKTOP if needed
Plastic won't stop it
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Old 08-31-2009, 10:36 PM   #6
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Quote:
Originally Posted by Scuba_Dave View Post
If that tree is the same tree I had at one Apt it will push up shoots thru BLACKTOP if needed
Plastic won't stop it
Yes, it is a pretty invasive tree. It will find its way through or around anything.
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Old 08-31-2009, 10:41 PM   #7
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Quote:
Originally Posted by gma2rjc View Post
How far down do you think the shoots are below the surface? If you can find out and they're not down too deep, maybe you could rent a Bobcat (or something like that) to dig up your yard and pull out each root. What a pain that would be, but if you've tried everything else, maybe this is the only way to get them all out.
I have honestly thought about doing this already. I do not know if I will be able to find all the roots all over the yard. It will be very messy and expensive. I will prefer not to do this. These roots have been there for years as the old tree has huge. I was told that "used car oil" will poison the roots. I just applied a little of it to a couple of this shooters. We'll see how that goes.
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Old 09-01-2009, 02:35 AM   #8
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See my post above.
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Old 09-01-2009, 12:05 PM   #9
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Quote:
Originally Posted by chrisn View Post
See my post above.

You'll need a fresh cut on the stump to apply it to, I believe.

You can also make slices in the bark and apply the glyphosate to the cuts.

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