Returning Green Kylinga Sedge in zone 7

Discussion in 'Pesticide & Herbicide Application' started by joelcoqui, Nov 20, 2018.

  1. joelcoqui

    joelcoqui LawnSite Member
    from NY
    Messages: 57

    Cant kill it. Keeps spreading in NY on long island. We even used roundup to make sure it was dead before reseeding. It came back in the same spots.
  2. Digitaria Sanguinalis

    Digitaria Sanguinalis LawnSite Senior Member
    Messages: 431

    Round up isn't really that effective on sedges. You'll need a sulfonyurea. Cool season grasses somewhat limit what you can use. I use halosulfuron on Fescue. It seems to be the most gentle. You also need to blanket spray problems yards otherwise you'll play hide and seek all season. I'm not familiar with your weather in NY but here in Oklahoma I typically blanket problem yards in May to early June to achieve season long control.
    ETM likes this.
  3. phasthound

    phasthound LawnSite Fanatic
    Messages: 5,635

    Identifying and Understanding False-Green Kyllinga in Cool-Season Turf
    • Matthew Elmore, Assistant Extension Specialist in Weed Science
    • James A. Murphy, Extension Specialist in Turf Management
    oqueoque likes this.

    CHARLES CUE LawnSite Silver Member
    Messages: 2,815

    I have never heard of false green kyllinga Thanks
  5. ArTurf

    ArTurf LawnSite Fanatic
    Male, from Ark
    Messages: 5,960

    I hate to be the one to say this (not really) but are you even licensed to apply herbicides/pesticides?
  6. grassmasterswilson

    grassmasterswilson LawnSite Fanatic
    from nc
    Messages: 5,175

    Are you sure on ID? Looks like you are in New York? Shouldn’t you have had a frost? That would kill it for the winter.

    Halosulfuron, Celero, might be good options.
  7. Delmarva Keith

    Delmarva Keith LawnSite Senior Member
    Messages: 590

    If it came back this late in the season, are you sure it isn’t poa annua or triv? Similar lighter green color and faster growth but poa are grasses (obviously), not a sedge. Poa does very well this time of year.

    If it is sedge, sedgehammer and dismiss have both worked very well for me. Dismiss works very fast but leaves ugly brown patches of mortally wounded sedge in the turf as the sedge dies. Sedgehammer is slower and the sedge just pretty much fades away over the course of several weeks.

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