Not 100% sure but it kind of looks like Zoysia, which would be thriving right now.

Certainly not the grass you want in MA.

Can you ask the guy what he put down?

I took another picture in another area of the backyard

Could it be crabgrass?

If that is crabgrass will the weed whacking down to the surface and over-seeding work?

Thanks

Pull some out and take a pic of the roots; then we can tell better if it's crabgrass....

does this help?

Thanks

I'm not sure if that's sedge, but it's not crabgrass.

Whatever it is I don't think you want it in your lawn....

Does anyone know the protocol to rid the lawn of whatever this grassy weed is prior to re-seeding?

Do I need to use "Round-up?"

I would think so; not sure of any other way to get rid of that much of it.

Hi Joe,

Do you know the steps that need to be taken to do the job correctly?

Thanks

Ordinarily, I'd say hit the entire lawn with Tenacity but it looks like your desirable grass could be predominantly fine fescue from what I can tell, so that wouldn't be a good option. I agree that it has the color and upright posture of a sedge.

Get out there this week and spray all the areas where it is.

Do it again a week later.

Mow low and bag the clippings.

Overseed 1st week of September.

Landscaper was here today, I asked him what he slice seeded with last fall.

I claims it's crabgrass or weed seed from the topsoil used from on site material.

He will be applying Round-up to kill it off.

He plans on coming back after August 15th to hydo- seed with a KBG, Fescue, and rye blend, (an athletic field blend).

It's a 55+ community, HOA controlled.

I don't think I have a choice on what he uses, unless I do it myself.

Your thoughts would be appreciated

Well, that's good that he's taking care of it. It saves you a ton of work.

Just remember to water 3x a day for a month.

I spoke with the landscaper yesterday, he thinks the grass / weed I show in the picture above is a perennial rye.

I told him I was going to apply round-up to it and re-seed he was not to pleased.

I guess I inherited a fall project.

gle2011

I guess I inherited a fall project.

UMass Ext. says Aug 15 - Sept 15 is “best” for seeding.

Can sedge grow naturally or could it be part of an over-seeding attempt by the landscaper?

Is it a common practice to use this type of grass if in fact it was part of an over-seeding attempt?

I don't think anyone tries to plant sedge grass; it's an undesirable weed. Most lawns can get it in the summer.

BTW, that does not look like rye to me at all; I think the landscaper is full of it.

I agree.

Trying to get out of any extra work assigned to him.

might be annual ryegrass which is sometimes used as a nurse grass. should die out after a year. not sure I'd round it up until i can ID that grass with certainty.

HI Mishmosh,

Any thoughts on how to ID the grass?

I haven't found anyone here in the forum that can ID it.

I Googled annual rye and the pictures do not look very similar.

Would you re-seed over it?

I was thinking of weed whacking it down as close to the soil level and possible and then re-seeding.

Your thoughts?

Thanks

With help and continued research I think I have finally ID the weed grass as a Nutsedge.

When you have a large infestation like I have how do you go about re-seeding the area?

From what I have read from University of Purdue Extension Service

Late spring/early summer (when it is young and actively growing) is the ideal time to control yellow nutsedge. During its early growth stages, yellow nutsedge has not started producing tubers and is most susceptible to control with herbicides. As the summer progresses, nutsedge plants form seedheads and tubers.

Thanks in advance

rifis (zone 6b-7a NJ)

This may be nutty, but it that a sedge? (July 31)

gle2011

With help and continued research I think I have finally ID the weed grass as a Nutsedge (August 14)

Pull up a couple and look for 1/8 inch size seeds attached to the roots. If they are there it is Nutsedge

Toolbelt68

do the pictures above help ID it?

Thanks

Sort of but if you go to google image search you should find some matching photos. Note the seeds at the top of the plant in the pictures. If your has those then it's nutsedge.