Kyllinga has taken over

Bermuda, St. Augustine, Zoysia, Centipede, Bahia, Paspalum, etc
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craving77494
Posts: 19
Joined: May 21st, 2017, 4:58 pm
Location: Katy, TX
Grass Type: Bermuda, Tifway 419
Lawn Size: Not Specified
Level: Not Specified

Kyllinga has taken over

Post by craving77494 » November 3rd, 2017, 10:13 am

Looking for some advice.

I have been working hard to restore my tif-419 here in Houston this past year. I have been mowing at 1-1/4” and all was looking good. I noticed a different color “grass” coming in and it looked really good mowed short. I did not think much about it until I realized it’s aggressive growth. Now I know it is Kyllinga and it has taken over about 75% of my front yard.

Now for my questions:

Should I apply SedgeHammer now and try and kill it before Bermuda dormancy or wait until spring to spray the SH? I do plan on applying a Pre-M in February.

How long will it take (roughly) for my tif to grow back over the Kyllinga? With only 25% Bermuda left I think I may have screwed myself for next season.

Any thoughts would sure be appreciated.

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Dchall_San_Antonio
Posts: 3341
Joined: December 17th, 2008, 1:53 am
Location: San Antonio, Texas
Grass Type: St Augustine
Lawn Size: 5000-10000
Level: Advanced

Re: Kyllinga has taken over

Post by Dchall_San_Antonio » November 3rd, 2017, 1:19 pm

My experience with both green kyllinga and nutgrass in San Antonio was that the green kyllinga was not aggressive even when it received plenty of water. Nutgrass, on the other hand, was extremely aggressive especially when watered on a daily basis. Other observations: when you withhold water from nutgrass, it seems to go dormant and disappear. When you withhold water from green kyllinga there is no change whatsoever. It looked healthy in soil that only ever received rain.

So, based on my experience my first guess would be that you have nutgrass and not green kyllinga. But in either case you need something like Sedgehammer or any of the other seven herbicides listed in this link.

It should not take bermuda long to recover. Assuming it is healthy it would be a matter of 3 weeks. The problem will be that common bermuda will invade bare spots giving you a mixed hybrid and common turf.

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