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-   -   invasive grass taking over Kentucky bluegrass (http://www.diychatroom.com/f16/invasive-grass-taking-over-kentucky-bluegrass-76587/)

annie68164 07-19-2010 12:31 PM

invasive grass taking over Kentucky bluegrass
 
I've been searching the net trying to figure out what is taking over my lawn. I have Kentucky bluegrass that is being crowded out by a thicker- bladed light-green grass that grows at least twice as fast. It's taking over quickly and I'm not sure how to stop it. I know it's not crabgrass, it's actually not unattractive and doesn't seem to be sprouting anything. It's just it's destroying the blue and it grows way too damn fast. My lawn has tons of that white clover stuff and elephant ear too.(think that's what it is called) I usually use Scott's Weed and Feed in spring, then I just applied their anytime fertilizer which consists of Nitrogen, Sulphur and some Iron. I tried Ortho's Weed and feed that you attach to your hose but I don't think I had enough water pressue (well water) for the stuff to come out of the applicator. I did the whole lawn and the bottle was still full. Very frustrating! Any advice would be great!

GardenConcepts 07-19-2010 06:34 PM

A picture would help, but it sounds like Yellow Nutsedge. Weed and feed won't kill it. I think it has been mentioned here before- SedgeHammer- kills Nutsedge.

cgoll 07-20-2010 01:43 PM

The OP's description sounds like a grass I have in my yard. The Chemlawn guy told me it was 'orchard grass'. Also said nothing would kill it (except for Round-up).

If it is nutsedge it will have a triangular stem cross section.

FrankL 07-22-2010 11:21 AM

Crabgrass is like that as well. Sometimes you can get a special formulation of weed killer for a type of weed. Ortho has a Crabgrass formulation. You can try to spray those spots and also dig it out. Check with a local nursery or the state or county agent. Theere may be a state web or university web site with info on weeds found in your area.

Frank Lardino

moondawg 07-22-2010 02:01 PM

It's been going "nuts" here as well. Only my 2 neighbors with EXTREMELY thick lawns have been able to avoid it. I agree that I think it's Yellow Nutsedge. My yard is new, was not thick, and YN completely took over.

Parch702 08-03-2010 05:16 PM

Invasive Grass in NE Phila PA
 
3 Attachment(s)
Sounds like I have something similar. Light green grass growing in patches, grows twice as fast as the native species and has a triangular stem at ground level.

Been fighting this thing for 3 years now by pulling out some of the interior stems, but this year it just seemed to take off. Also seems like it's spreading below the surface as the grass has never gotten high enough to go to seed.

Have attached pix. If you have any comments I like to hear them. Thanks in advance

GardenConcepts 08-03-2010 05:27 PM

Definitely Yellow Nutsedge.

Check out this .pdf from Perdue University on control options:

http://www.agry.purdue.edu/turf/pubs/agry-98-04.pdf

Parch702 08-04-2010 09:57 AM

Thanks Chris,
 
I read the Purdue report, seems I need to wait til next spring to take care of it.

Someone recommended Sedgehammer as a herbicide. Do you know of it and does it work? Would I also need to wait til next spring before applying?

I live in Philly, maybe I'll stop by next trip up north, see what your business is and say hi.

Thanks again,
Mike.

RDS 08-04-2010 12:47 PM

Glad I found this thread -- I've been pulling this stuff out, and didn't know what it was called. It does pull out rather easily, which is nice, but come spring I will go chemical on it now that I know what it is.

kredman 08-04-2010 12:49 PM

We have the same thing. Thanks for the link to the pdf!

SPS-1 08-12-2010 05:34 PM

I have been seeing it too. Used to be that I didn't worry about it because it doesn't really look so bad when its just a few blades. Then, on the forum, I read about how it spreads and is hard to kill. I have been pulling it by hand this year. Actually, I think I am winning the fight, but some always seems to come back. My grass is not strong, and I do have occasional weed problems. I am beginning to think the clay level (high) in my soil is the root problem for my lawn

moondawg 08-12-2010 07:29 PM

Quote:

Originally Posted by SPS-1 (Post 484788)
I have been seeing it too. Used to be that I didn't worry about it because it doesn't really look so bad when its just a few blades. Then, on the forum, I read about how it spreads and is hard to kill. I have been pulling it by hand this year. Actually, I think I am winning the fight, but some always seems to come back. My grass is not strong, and I do have occasional weed problems. I am beginning to think the clay level (high) in my soil is the root problem for my lawn

Yes, we have a ton of clay here as well. The heat and dry has really been knocking this back of late. I think it really took off this year because we had (in central indiana) an extraordinarily wet summer.

Allison1888 08-13-2010 04:35 PM

weed
 
We have that as well and it is a bear to get rid of. Thanks for the tips.

annie68164 08-14-2010 09:58 AM

The grass in this post's photos is something I have abit of too but not the main culprit. I'll try to post photos. My dad thought it was something called "water grass" due to our very wet year (central Iowa). He said it's popping up in everyone's lawns. From what I've read about controlling undesirable grass/weeds we are to fertilize in an appropriate, timely manner to get our good grass thick and healthy enough to block out the bad. Also there are pre-emergents for some of these undesirables like crabgrass. I plan to use that next spring. It's so thick and our yard is so huge no way I can pull the stuff out by hand. It has spread big time now. My yard looks terrible. :furious:

Roarck 03-22-2011 11:27 AM

What worked for me
 
Mowing it short once a week got rid of those grass types for me. The KTB was ok with being mowed short, but it damaged that weird green grass until it eventually died off and the KTB spread over them. By short I mean the normal recommended height for KTB.


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