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-   -   What weed is this? (https://www.diychatroom.com/f16/what-weed-102270/)

wiz561 04-21-2011 07:38 AM

What weed is this?
 
Hi!

I started seeing these pop up a few weeks ago and they are starting to spread. I tried putting down some Bayer Advanced Weed Control and failed. I then put down my usual regime of Scott's with Halts, but so far, they are still there. Just wondering what it is, and what I can do to get rid of them. I *think* it's Canadian Thistle, but not 100% sure.

I'm located outside of Chicago, and it seemed like they started appearing just after the temps reached 85-ish or so one weekend.

Thanks!

http://img825.imageshack.us/img825/4243/img1131eg.jpg

Uploaded with ImageShack.us

nap 04-21-2011 09:01 AM

looks like a dandelion to me.

DangerMouse 04-21-2011 09:16 AM

If you step on it in bare feet and it hurts, it's not dandelion.
That looks to be the same pricker plants I deal with here all the time.
I just stake the goats out and let them eat them.

DM

wiz561 04-21-2011 09:23 AM

ouch
 
I didn't step on it with bare feet, but it does have some little prickleys on it that I think would hurt.

Since I don't have goats, do you have any other removal suggestions? :)

DangerMouse 04-21-2011 09:32 AM

NO GOATS???? You're kidding, right? :laughing:
Before we got our goats, I just dug them out by the roots every time I saw them.
They ARE persistent little buggers.....

DM

hyunelan2 04-21-2011 09:54 AM

I had those in a few places. Ortho Weed-b-gon Max is what I used on everything. That, and physically removing them.

wiz561 04-21-2011 09:57 AM

Is the Ortho Weed-b-gon Max a hose-sprayer thing, or is it in a spray bottle?

hyunelan2 04-21-2011 09:59 AM

Either.

http://www.scotts.com/smg/products/o...RTS_08_std.jpg

http://www.styleceo.com/images/store...bottle-6795299

http://www.styleceo.com/images/store...bottle-6784143

fabrk8r 04-21-2011 10:20 AM

I've always known them as "thistle". They will get a pretty clover-like flower when mature, but they have nasty thorns and spread like crazy.

wiz561 04-21-2011 10:22 AM

Yeah, that's the problem I'm having right now. They first started in the back section of my yard, then started spreading down a little strip. Now they are starting to branch out, and I really want to get them before they overtake my entire newly sodded yard.

hortman 04-21-2011 10:34 AM

What weed is this?
 
Hey, wiz561. Ken here .
It doesn’t really matter what weed it is. The important thing is that
it is a broadleaf weed. If this is the Bayer Advanced that you used, then
give it another shot.
http://www.homedepot.com/catalog/pro...e601b7_300.jpg
It has been a really cold spring and the fluids in the weed aren’t moving
very much, hence, you don’t see much effect. The Bayer hasn’t gotten to
the roots yet to kill them.
The Scotts with Halts only prevents weed seeds from germinating.
It won’t affect any weed that is already up and running.
We are getting some warm weather next week so that would be the time to give the weeds another shot of the Bayer.
If that isn’t the Bayer you used then try one of these lawn care products.

http://www.diychatroom.com/[img]http...ed5df8_300.jpghttp://www.homedepot.com/catalog/pro...ed5df8_300.jpg

http://www.homedepot.com/catalog/pro...ac6aad_300.jpg

Good luck and take care.
http://www.diychatroom.com/[img]http...ed5df8_300.jpg

Erimess 04-23-2011 01:45 AM

I get these too, every year. When smaller, it looks exactly like a prickly dandelion. When bigger, it's obvious it's not. And they will grow tall. (Or at least, it looks like the same thing to me, but don't shoot me if it's not.)

Weed be Gone does work, cause it's what I use. But they're very stubborn and I have to keep on them. Even once they start wilting a bit, sometimes they'll spring back to life if I don't spray them again until they look half-dead.

In my yard, they mostly grow where grass is patchy, like around bushes and such.

GardenConcepts 04-23-2011 06:26 AM

As previously mentioned, Thistle- probably Canada Thistle. Very difficult to eradicate. The thick leaves make any chemical treatment slow to take affect. I like to step on the plant to break the vascular system a bit and then spot spray with roundup.

wiz561 04-23-2011 07:19 AM

Thanks for the info. I was afraid that it was Canadian Thistle and hard to get rid of. Arghhh....

Is there anything that can be done to prevent the growth of more? I'm a little scared to use roundup as it kills grass as well, and I would have lots of bare spots if I took that route. At the same time, I want to get rid of it and prevent it from spreading.


thanks!

GardenConcepts 04-23-2011 07:44 AM

Check out this article on Canada Thistle control on golf courses:

http://turfgrassdiseasesolutions.com...nal%5B1%5D.pdf

Trimec herbicide (similar to the Ortho Weed Begon Max) is probably your best bet. Pre-emergent control is difficult.


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