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View Full Version : Looking for some help identifying issue with parts of a lawn


massivesystems
08-12-2010, 12:11 AM
I have a pretty good maintained lawn over all, but have a few areas that differ in size that the grass looks very differnt, and not like a average healthy blade of grass. I do fertilize 3 times a year. It seems like when I fertilize the areas in question it seem to go dorment because it turn brown, where the normal looking grass stays green. After many weeks pass by, the area in question start to green back up. The grass in these areas look matted all year round, and is green mostly at the top and brown from middle to soil surface. Also it looks so differnt when you get right down close and look at it. The top of the grass in these areas is green at the top bu pretty brown below.Never less I have attached pictures of the entire lawn,and the areas in questions circled in red, and close shots of what the grass in question looks like. Most of the lawn itself is thick and healthly, I just don't know what it is. Also just to note I do have a irrigation systems that runs each zone for 20mins on even days.

I would appreciate your help....thank You

http://img508.imageshack.us/img508/4633/dscn9814o.jpg
http://img405.imageshack.us/img405/4889/dscn9815.jpg
http://img689.imageshack.us/img689/7461/dscn9817f.jpg
http://img24.imageshack.us/img24/4862/dscn9819u.jpg
http://img85.imageshack.us/img85/1850/dscn9821.jpg
http://img825.imageshack.us/img825/7108/dscn9824.jpg
http://img267.imageshack.us/img267/1787/dscn9826v.jpg
http://img441.imageshack.us/img441/2120/dscn9825.jpg
http://img155.imageshack.us/img155/536/dscn9827l.jpg

massivesystems
08-13-2010, 10:32 AM
Anyone? I am just looking for some input from a lawn expert that can possibly identify the issue per my description and the pictures.

thanks

TurfLadytx
08-14-2010, 12:07 PM
maybe somebody buried a body there

Turfdude
08-14-2010, 01:26 PM
Its a little tough for me to tell from the pics, but via description, I'm leaning towards thinking you may have some creeping bentgrass patches. After you muw, if you rake and the grass is brown at the base, but kinda comes up "clumpy" and in lengths to 6"-7", that would be my guess. I do a lot better on site. THe other possibility is a fungal problem. It is not leaf spot or dollar spot from what I can tell.

massivesystems
08-14-2010, 05:23 PM
Its a little tough for me to tell from the pics, but via description, I'm leaning towards thinking you may have some creeping bentgrass patches. After you muw, if you rake and the grass is brown at the base, but kinda comes up "clumpy" and in lengths to 6"-7", that would be my guess. I do a lot better on site. THe other possibility is a fungal problem. It is not leaf spot or dollar spot from what I can tell.

Turfdude,

Yes after I mow the grass dos not stand up, it stays matted, and the blades of grass seem to be a lot finer than the rest of the lawn. Also yes if I rake it is brown at the base, and it is clumpy, and it is alot longer than the rest of the lawn.

What do I need to do if it is creeping bentgrass, which I am almost positive it is.

Thanks for your reply

Richard Martin
08-14-2010, 05:39 PM
It may also be Bermuda. Closely following the directions on the package, Ornamec will wipe it out. Take care of it now because it will absolutely take over.

massivesystems
08-14-2010, 06:37 PM
It may also be Bermuda. Closely following the directions on the package, Ornamec will wipe it out. Take care of it now because it will absolutely take over.

The grass is very stringy. And after I lowered my mower to 3" I can see the brown base of this grass. Whether I use Ornamec, or round up will both also kill the kentucky blue grass.

Also I take it I then have to resed. If I do have to resead, how long do i have to wait.

massivesystems
08-14-2010, 06:50 PM
The grass is very stringy. And after I lowered my mower to 3" I can see the brown base of this grass. Whether I use Ornamec, or round up will both also kill the kentucky blue grass.

Also I take it I then have to resed. If I do have to resead, how long do i have to wait.

Also the root systems seems to be very shallow

Turfdude
08-14-2010, 10:32 PM
Yes, if its bent grass - use round-up. Wait 1 week then renovate, aerate & re-seed. Bentgrass will continue to spread if its not erradicated.

massivesystems
08-14-2010, 11:27 PM
Yes, if its bent grass - use round-up. Wait 1 week then renovate, aerate & re-seed. Bentgrass will continue to spread if its not erradicated.

Addtional pictures and labeled

Richard Martin
08-15-2010, 03:27 AM
Yup. I change my vote. Bent grass.

massivesystems
08-15-2010, 09:17 AM
Yup. I change my vote. Bent grass.

So can I just over seed it, or does it all have to be removed? If it needs to be removed what products do I need to use (round up)? I have a fair share of good size areas that seem to be 100% bent grass. Also when is a good part of the season to get rid of it. I am located in Minnesota.

Richard Martin
08-15-2010, 10:33 AM
So can I just over seed it, or does it all have to be removed? If it needs to be removed what products do I need to use (round up)? I have a fair share of good size areas that seem to be 100% bent grass. Also when is a good part of the season to get rid of it. I am located in Minnesota.

Roundup like they said.

I would imagine that right now would probably be the best time. You want to get you new grass established before it gets too cold. I would imagine that you're not too far from cold temps now eh?

massivesystems
08-15-2010, 10:45 AM
Roundup like they said.

I would imagine that right now would probably be the best time. You want to get you new grass established before it gets too cold. I would imagine that you're not too far from cold temps now eh?

well we just finsihed a full week of 90 temps with high humidity and heat indexes around 100. So when i use the round do I just try to spray the areas affected with the bentgrass? I understand that if some gets on the kentucky blue grass it will also kill that also, but resseding all areas should address that

Then do I wait a week before I reseed?

Richard Martin
08-15-2010, 10:49 AM
well we just finsihed a full week of 90 temps with high humidity and heat indexes around 100. So when i use the round do I just try to spray the areas affected with the bentgrass? I understand that if some gets on the kentucky blue grass it will also kill that also, but resseding all areas should address that

I have a feeing that this winter is going to be so cold that we can't hardly stand it. Not a lot of snow, Alberta Clippers mostly. Just a whole lot of cold.

Yes, spray every bit that you can. Twice. Just the bentgrass.

massivesystems
08-15-2010, 12:42 PM
I have a feeing that this winter is going to be so cold that we can't hardly stand it. Not a lot of snow, Alberta Clippers mostly. Just a whole lot of cold.

Yes, spray every bit that you can. Twice. Just the bentgrass.

after looking over my entire lawn, I can see that the bentgrass is kind of every where, a lot less is most areas. I think I may just go get my buddys skidster and take out the entire lawn 40x50 (225yds) and order in pallets of new Blue Grass. I can get sod for less than $1 a yard.

Richard Martin
08-15-2010, 01:09 PM
after looking over my entire lawn, I can see that the bentgrass is kind of every where, a lot less is most areas. I think I may just go get my buddys skidster and take out the entire lawn 40x50 (225yds) and order in pallets of new Blue Grass. I can get sod for less than $1 a yard.

I would spray the entire yard first and wait at least a week. Spray it twice.

ed2hess
08-15-2010, 07:45 PM
So what is the problem it looks almost as good as the rest of the lawn? I'll bet you can knock it out with RU and put in new sod and it will come back next year. Most grassy weeds seem to come back.

Turfdude
08-15-2010, 08:17 PM
If its in the neighbor's yard, it'll creep back over. That is defiinately bentgrass. If you're going to remove, cut it w/ a sod cutter, then drag into piles & load w skid - you lose less soil that way. It wouldn't hurt to spray w/ r/u 1st, then wait 10 days to get rid of it. I have patches of bentgrass in my yard - it is always "green on top & brown underneath", it is prone to fungus a lot quicker, but I just manage it by annual dethatching, core aerating & overseeding w/ tttf grass. The bent is not that bad as long as I keep it in check.

perdition_72
08-15-2010, 08:18 PM
Carefully spray the affected area with Round up. Wait a week and spray again. Wait another week and re-sod area or renovate with seed.

massivesystems
08-15-2010, 09:55 PM
So what is the problem it looks almost as good as the rest of the lawn? I'll bet you can knock it out with RU and put in new sod and it will come back next year. Most grassy weeds seem to come back.

Yes the top does not look bad. Can I over seed the crap out of the lawn with Kentucky Blue grass to blend it in more?

massivesystems
08-15-2010, 10:04 PM
If its in the neighbor's yard, it'll creep back over. That is defiinately bentgrass. If you're going to remove, cut it w/ a sod cutter, then drag into piles & load w skid - you lose less soil that way. It wouldn't hurt to spray w/ r/u 1st, then wait 10 days to get rid of it. I have patches of bentgrass in my yard - it is always "green on top & brown underneath", it is prone to fungus a lot quicker, but I just manage it by annual dethatching, core aerating & overseeding w/ tttf grass. The bent is not that bad as long as I keep it in check.

Nothing in neighbors lawn. I would rather not go through all the work of tearing it all out and sodding. So if I manage it and perform the same type of task your are, i can control it pretty much, or keep it look good?

If I keep over seeding it each year will the kentucky seed germinate, and blend in with the bentgrass, or even cover up some of the bentgrass.

If I choose to leave it can I still apply fertilizer as usual? My irrigation during the summer goes on every other day for 20 mins. Should I change my watering schedule ( water longer but less often)?