Need help with brown patches in lawn

mentingJune 25, 2014

Hi, my lawn was just installed using sod in early April, and it was looking fine until about a month ago. There are now large patches of brown in my lawn (attached pic shows one of those patches. I'm not sure how to upload more pictures in the same post), and I have no idea what the cause of that is.

I have pressurized irrigation, and I thought these patches might be because it was too try, so I cranked up the watering a bit, but it didn't seem to help. I even tried to use a hose on those patches after the sprinklers, and it didn't seem to help either. I fertilized the whole lawn a few weeks ago, but it didn't seem to help either. I also wondered if I was cutting it too short (2.25in), so I bumped it up to 3in, but it didn't seem to do any good, as the grass didn't even grow high enough to be cut at even 2.25in

The lawn is a mix of kentucky bluegrass and ryegrass, and I'm located in Boise, Idaho.

Any suggestions for steps to take to narrow down the issue is greatly appreciated.

Thanks.

This post was edited by menting on Wed, Jun 25, 14 at 23:37

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menting

Not sure if this will be of any help, but this is a closer up photo of the brown patch.

    Bookmark   June 25, 2014 at 11:30PM
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menting

this is the pic of another brown patch

    Bookmark   June 25, 2014 at 11:32PM
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dchall_san_antonio(8 San Antonio)

It could be too wet. What did you bump your schedule from and to?

    Bookmark   June 26, 2014 at 9:47PM
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menting

I was watering 2 times a day, 18 minutes starting at 6:45am, then 10 minutes at about 4pm, since the weather gets to be about 90F then. I'm not sure how many inches that translates into.
I've since cut down to only 18 minutes every morning at 6:45am now. The top of the soil seems pretty dry after i get off work every day if I don't give it some water in the afternoon, so I'm really scared of only watering it like once every 3 days or longer as recommended.

This is my first time owning a house and a yard, so I'm probably overwatering like crazy.

    Bookmark   June 27, 2014 at 1:42AM
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