Anyone know what this stuff is?

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Lawnnut
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Anyone know what this stuff is?

Post by Lawnnut » May 24th, 2017, 3:07 pm

I have tons of this thick grass kinda looks like quackgrass or crabgrass also these little flowers are showing up everywhere. Anyone know what this stuff is ??? Every time I spary it doesn't die. Any help would be appreciated
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Re: Anyone know what this stuff is?

Post by g-man » May 24th, 2017, 3:22 pm

Have you followed the triangle approached? Sprayed it with the level 2?

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Re: Anyone know what this stuff is?

Post by Lawnnut » May 24th, 2017, 4:47 pm

What is it .. it's hard to spary something if you don't know what it is.

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Re: Anyone know what this stuff is?

Post by Jackpine » May 24th, 2017, 5:04 pm

Looks like one of the speedwells which can be hard to kill. Being a winter annual it will die after seeding so a fall pre-m is the best control. Pulling them out is the best bet right now.

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Re: Anyone know what this stuff is?

Post by g-man » May 24th, 2017, 5:18 pm

Lawnnut wrote:
May 24th, 2017, 4:47 pm
What is it .. it's hard to spary something if you don't know what it is.
The idea behind the triangle approach is to not to try to figure out what it is. Treat it with level 1, if it doesnt die then level 2, if it doesnt die then at level 3 is when you post a picture and ask what it is and how to kill it.


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Re: Anyone know what this stuff is?

Post by Jackpine » May 24th, 2017, 5:58 pm

g-man wrote:
May 24th, 2017, 5:18 pm
Lawnnut wrote:
May 24th, 2017, 4:47 pm
What is it .. it's hard to spary something if you don't know what it is.
The idea behind the triangle approach is to not to try to figure out what it is. Treat it with level 1, if it doesnt die then level 2, if it doesnt die then at level 3 is when you post a picture and ask what it is and how to kill it.
The triangle approach is fine if you are dealing with a "mess o' weeds". Since this is a targeted weed that was not taken out by what I assume was a common 3-way herbicide I agree with the OP that a proper ID is the best approach.

Since it could very well be a winter annual it will die soon on it's own preventing an unneeded herbicide app.

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Re: Anyone know what this stuff is?

Post by glenforest » May 24th, 2017, 7:51 pm

I don't know what the grass is, but the broadleaf weed is a variety of speedwell. See the heart-shaped seed capsules?

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Re: Anyone know what this stuff is?

Post by tnkrer » May 24th, 2017, 8:07 pm

I have the same weed (lots of it) I think (see the attached picture). I have tried tryclopyr with some success. (I was treating oxalis and violets anyway). Here is a photo, so if its speedwell, pre-m to stop Poa A will also stop this guy?

Image

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Re: Anyone know what this stuff is?

Post by tnkrer » May 24th, 2017, 8:24 pm

Assuming it is corn speedwell triclopyr is not expected to work - (http://www.better-lawn-care.com/corn-sp ... z4i2pelTrb)

Chemical Control: Corn Speedwell is classified as hard to control with herbicides. The most effective approach is to apply pre-emergence herbicides in the fall to prevent seeds from sprouting. Winter annual weed seeds germinate in the fall, therefore, this is the best time to prevent them with pre-emergence herbicides.

Attempts to kill this weed in late spring usually fail because it is at the end of its life cycle. Optimum control with post-emergent herbicides is gained when applied in early spring when it is actively growing, and this is between the four leaf and flowering stage.

Broadleaf herbicides for Speedwell control:
(As recommended by N.C. State Turffiles)

Repeat applications of a "3-way" combination product (Triplet or Trimec) spaced 10 days apart.

One application of the following:
Metsulfuron (Manor, Blade, etc.)
Trifloxysulfuron (Monument)
Quinclorac (Drive)


Read more from original site: Corn Speedwell | Veronica arvensis | Lawn Weed Identification & Control http://www.better-lawn-care.com/corn-sp ... z4i2sl9vg1

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Re: Anyone know what this stuff is?

Post by andy10917 » May 24th, 2017, 8:48 pm

I read the whole article three times and there is no mention of Triclopyr in either a positive or negative light - is this the right article?

Triclopyr works just fine on speedwell-family members, in my experience.

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Re: Anyone know what this stuff is?

Post by Green » May 24th, 2017, 8:51 pm

Cool thread. Learned something. I thought that stuff was a type of chickweed. I have it in the mulch bed. I've been hitting it with Triclopyr. It seems to brown out from the herbicide.

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Re: Anyone know what this stuff is?

Post by TimmyG » May 24th, 2017, 9:04 pm

Doesn't look like any speedwell I've ever seen. The leaves are completely different. Here is corn speedwell including some pics comparing Persian, ivyleaf, and corn speedwell leaves.

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Re: Anyone know what this stuff is?

Post by fun4me2 » May 25th, 2017, 7:23 am

andy10917 wrote:
May 24th, 2017, 8:48 pm
I read the whole article three times and there is no mention of Triclopyr in either a positive or negative light - is this the right article?

Triclopyr works just fine on speedwell-family members, in my experience.
I have the same,whatever it is, weed. I thought it was chickweed.
Anyway, I have a huge infestation of the darn stuff.
I've been bagging when mowing.

Did 2 CCO blanket applications (with the 8% Triclopyr) 2 weeks apart).
Turned it yellow and it's slowly dying.
I'm wondering with all this cool weather we've been getting that,
maybe the first 2 applications weren't as effective.
At any rate, will need a 3rd one which is due next week.

Did not put down a pre-m last August.
Will not make the same mistake again.

Other then that...
My Northern mix "mutt" lawn looks pretty darn good! :yahoo:
I am so grateful that I found this site several years ago.
I started out with a lawn taken over by dandelion's, wild violets, clover, etc. etc....
With the right knowledge (triangle approach)....
The transformation of my lawn has been nothing short of amazing.
As a 68 yr old lady, I'm proud of my accomplishments.
I have learned a lot by coming here and just reading, reading, reading.
Thank you to the ATY members who share their knowledge. :good:

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Re: Anyone know what this stuff is?

Post by tnkrer » May 25th, 2017, 8:58 am

Here is the ncstate page on corn speedwell that was referred to by better-lawn-care
http://www.turffiles.ncsu.edu/weeds/corn-speedwell
TimmyG .. what I have does match up pretty well with the photos of corn speedwell on that page and also the description of what to look for on the better-lawn-care
Like Andy said, it does not mention triclopyr, but I have had success with triclopyr on this one .. though the weed needs to be well exposed and it is a very slow kill. When the weed is in thick grass, it does not get sprayed well and so does not die.

Will try fall pre-m this year.. split app early august and late september? That would handle this and poa A?

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Re: Anyone know what this stuff is?

Post by mitten » May 25th, 2017, 9:38 am

This is what i have in my 2016 reno. Looks similar... You can't really see it in the grass unless you're walking on it and looking down.
Image

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Re: Anyone know what this stuff is?

Post by STL » May 25th, 2017, 9:46 am

That looks like what I had in a bit of in my lawn. Tryclopyr dealt with it just fine. I didn't have a lot though.

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Re: Anyone know what this stuff is?

Post by TimmyG » May 25th, 2017, 10:01 am

I guess all we're seeing in the OP's photos are the inflorescences, no leaves. mitten's photo shows a leaf or two at the base of the inflorescence, which confirms speedwell. The flowers should open blue.

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Re: Anyone know what this stuff is?

Post by VitoXI » May 25th, 2017, 1:24 pm

My sympathies, I'm dealing with some speedwell that crept over from my neighbor's lawn. I hit it with a three-in-one product and it turned a little brown on top, then recovered quite nicely. I hit it again, and maybe 30% of it died, the rest doesn't look happy, but I'm sure it will recover.

I hit it with CCO yesterday when spraying clover, but I'm not taking any more chances. It pulls out easily enough. I just want it gone.

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Re: Anyone know what this stuff is?

Post by Lawnnut » May 25th, 2017, 2:47 pm

TimmyG wrote:
May 25th, 2017, 10:01 am
I guess all we're seeing in the OP's photos are the inflorescences, no leaves. mitten's photo shows a leaf or two at the base of the inflorescence, which confirms speedwell. The flowers should open blue.
That is right there I have many with the blue flower opened up .. sounds like it should die off when it's summer time.

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Re: Anyone know what this stuff is?

Post by fun4me2 » May 25th, 2017, 4:42 pm

What I have has white flowers.
So I do have chickweed, to be exact common chickweed.

http://www.turffiles.ncsu.edu/weeds/common-chickweed

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