Cool Season Weed ID Thread - What is it and how do I kill it?

Need help identifying a weed?
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Togo
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by Togo »

LIgrass wrote:
Tue Apr 06, 2021 7:05 pm
Togo wrote:
Mon Mar 29, 2021 10:22 am
LIgrass wrote:
Fri Mar 26, 2021 9:10 pm
The weed below is a summer weed that is hard to control. I can't figure out what it is. CCO hurts it for sure but could never figure out the exact weed id. Anyone know?
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LI here too and I have some of this as well. Had one spot that I glypho’d last year and just saw some two days ago in another spot in the lawn.

And @g-man mine already looks like that with those spiked looking buds.

@LIgrass a google search turned up that cylindric sedge and global sedge which look very similar are controlled with Tenacity so I will try this. https://www.turffiles.ncsu.edu/weeds-i ... ric-sedge/
@g-man @Togo I think you both nailed it being cylindric sedge. Never heard of it before. Yes it looks like that starting now and I think grows through summer. I will try the tenacity. Thanks guys.
I just googled gmans suggestion and started reading up on it because I never knew what it was before but I have it. Although I couldnt find the one I thought I saw the other day so idk where it was but I know I saw it last year.

edixon88
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by edixon88 »

Should have pulled some out for better close up pics, but any guesses as to what these seed heads are?
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frekwentflier
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by frekwentflier »

Somebody posted a similar weed in the LCN private Facebook group. It was identified there as "rough rye grass". It basically looks like hay to me. The small purple stem seems to be the key identifying factor.

Since it's a grass, the only way to get rid of it is glyphosate. Either kill the entire area and reseed or paint each individual weed with a Qtip. Other people posted that the root structure isn't very deep (I can confirm this), so just pull it out. I'm not sure if this will work or not.

I have the same thing in my lawn in places where my former fertilizer service overseeded a few years ago. They used a cheap seed, and this is what I got. I've had it for years and it has spread slowly.

I have one primary section that I'm going to kill the entire area in July/August and reseed in the Fall. I also have a few more plants that have spread throughout the yard. I'm going to try to paint some of these with Roundup and pull others and see how each method works. I've had it for so long I can see it in my yard immediately, so I'll know if it comes back.



Lawn Whisperer wrote:
Mon Apr 05, 2021 2:05 pm
Trying to identify this weed that is growing faster/taller then TTTF and lighter green in color. I’m hoping it’s not dallisgrass as what my local nursery told me. I’m leaning more of some type of perennial ryegrass.


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ScottW
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by ScottW »

edixon88 wrote:
Wed Apr 07, 2021 9:06 pm
Should have pulled some out for better close up pics, but any guesses as to what these seed heads are?
Poa annua a.k.a. annual bluegrass.

LawnJawn85
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by LawnJawn85 »

New home owner here. I am suspecting this is poa. Can anyone confirm?


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shadowlawnjutsu
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by shadowlawnjutsu »

LawnJawn85 wrote:
Fri Apr 09, 2021 7:55 pm
New home owner here. I am suspecting this is poa. Can anyone confirm?


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Do you have a closer shot? I don’t think it’s poa it looks thin and it’s standing up tall. And I don’t see seedheads.

LawnJawn85
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by LawnJawn85 »

[/img]
shadowlawnjutsu wrote:
Fri Apr 09, 2021 8:53 pm
LawnJawn85 wrote:
Fri Apr 09, 2021 7:55 pm
New home owner here. I am suspecting this is poa. Can anyone confirm?


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Do you have a closer shot? I don’t think it’s poa it looks thin and it’s standing up tall. And I don’t see seedheads.

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TurfGuy
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by TurfGuy »

New guy here, thanks for adding me. I believe I may have the same grass weed? Any help identifying what I have? its real sqeaky whern I run my sneaker over the blades. Thanks very much! Love the lawns of the month!
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shadowlawnjutsu
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by shadowlawnjutsu »

Please help me identify this. It’s not poa annua, but it has a boat shaped tip. Definitely not KBG. Could this be poa triv? Here are some close up photos.

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shadowlawnjutsu
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by shadowlawnjutsu »

LawnJawn85 wrote:
Sat Apr 10, 2021 9:28 am
[/img]
shadowlawnjutsu wrote:
Fri Apr 09, 2021 8:53 pm
LawnJawn85 wrote:
Fri Apr 09, 2021 7:55 pm
New home owner here. I am suspecting this is poa. Can anyone confirm?


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Do you have a closer shot? I don’t think it’s poa it looks thin and it’s standing up tall. And I don’t see seedheads.

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That could be poa triv but I’m not sure. I can see a boat shaped tip. Does it look anything the same as the photo I posted above?

dicko1
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by dicko1 »

Turfguy
That looks like classic Poa Triv.

Shadowlawnjutsu
I'll go out on a limb and say your photos look like Orchard Grass

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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by TurfGuy »

Thank-you dicko1, gonna try spot treating the larger areas with Aneuw..

edixon88
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by edixon88 »

Are these seed heads all poa a? This is an area that had/has bentgrass. I overseeded with TTTF and sprayed tenacity last Sept.

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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by Lawn Noob »

edixon88 wrote:
Wed Apr 14, 2021 2:06 pm
Are these seed heads all poa a? This is an area that had/has bentgrass. I overseeded with TTTF and sprayed tenacity last Sept.

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Yep. Sorry.

edixon88
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Re: Cool Season Weed ID Thread - What is it and how do I kill it?

Post by edixon88 »

Lawn Noob wrote:
Wed Apr 14, 2021 6:52 pm
edixon88 wrote:
Wed Apr 14, 2021 2:06 pm
Are these seed heads all poa a? This is an area that had/has bentgrass. I overseeded with TTTF and sprayed tenacity last Sept.

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Yep. Sorry.
I don’t even understand how it’s possible that I have that much. :? I highly doubt it but I wonder if there was something wrong with the Hogan Blend I got.

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