Kyllinga Sedge

Roslyn, United States

I have a serious Kyllinga Sedge problem on my lawn. 1/2 acre with major areas so overgrown with it that there is no more lawn to see. It is very thick and plush. I have tried sedge hammer and sedge ender. It looks like it dies but it comes right back more and more each year. What to do? My landscaper wants to kill it all and re-sod. A fortune for me..because he could not control it?

Reno, NV(Zone 6b)

Here's an article from University of California, Davis. It may give you some ideas. It seems the biggest factor is water. Kyllinga seems to like wet spots.

http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7459.html

Roslyn, United States

...and yes, there is an easement underground that spews water from our street run off.... what dou you suggest I put there instead of turf... Or is there turf that likes moisture and full hot sun. zone 6

Reno, NV(Zone 6b)

I don't know of any regular turf grass that likes to be underwater. I think the first step is to get rid of the Kyllinga. You may have to kill everything in the areas most affected and then somehow keep the Kyllinga under control. Grass seed is cheaper than sod.

I found this website that may give you some ideas. They specialize in ornamental and native grasses.

http://hoffmannursery.com/home/the-plants/grasses-for-wet-areas/

Roslyn, United States

Well I killed it all in the fall. Reseeded last month in the dead spots...AND ITS BACK. IT WONT DIE for good!

(Zone 5a)

Do you know the species name, maybe Kyllinga brevifolia? In my case, if I had that plant, I would keep it since it is native to the US... I tolerate lawn, barely and since I live far from town, I can let some areas go wild. Near the house and where we go in the yard is kept mowed, only because of ticks. If it is in an area where you don't walk, can you just let it go since it is so plush?

If that is not something you want to do, maybe try some of these things. It is an annual, so maybe put down corn gluten meal which does not allow seeds to germinate. Might be tricky if water would just wash it away. One method we use for clearing up weeds is digging them up, roots and all. Turf and creeping charlie are my bane. That is quite labor intensive, but then I can plant other things right away.

Right now one area is under thick clear plastic with the edges covered with dirt to not allow any air to get in and this heats the area and kills them. Another method is smothering with black mats. The trick to this is to take off the mats every month or so to allow remaining seeds to germinate, then cover it again. These two methods require a full growing season.
Page six of this catalog goes into details of smothering and solarization.
http://www.prairiemoon.com/PDF/2016%20Prairie%20Moon%20Cultural%20Guide%20for%20Web.pdf

I know this is frustrating for you. I used to be frustrated with a lot of weeds here, but for one reason or another, I've just come to live with them... except that creeping charlie. I hope you find some solution that works for you.

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