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Help. Chalky White Dust killing grass...

Discussion in 'Homeowner Assistance Forum' started by SeatTime, May 13, 2004.

  1. SeatTime

    SeatTime LawnSite Member
    Posts: 6

    About a week ago I noticed a white chalky substance clinging to the individual blades of grass around a section of my lawn...about 10-12 feet diameter. Yesterday, I noticed the grass is still covered with this "chalk" and large portions of grass have turned yellow and died. This area is a ways back from my "normal" dog walking route so I didn't really notice the progressing damage. I figure there's no reversing it now, but what is it and how do I fix the problem. If I walk on it will I spread it via my shoes. Any help is greatly appreciated.
  2. threeputts

    threeputts LawnSite Member
    Posts: 4

    i think its a fungus. i heard that you could fertilize and it helps kill it. im sure a fungucide will kill it.
  3. Grassmechanic

    Grassmechanic LawnSite Silver Member
    Posts: 2,697

    More than likely it is Powdery Mildew.
  4. blaze347

    blaze347 LawnSite Member
    Posts: 101

    Grassmechanic is probabaly correct...its powdery mildew. Use a fungicide to kill and keep your yard mowed a slight bit higher than usual.
  5. PestPro

    PestPro LawnSite Member
    Posts: 114

    I have a lawn care service but I am finding lots and lots of mushrooms in my yard, I have heard that having mushroom means you have a fungus in the dirt. Should I call my lawn care service back and have a retreat done?
  6. HayBay

    HayBay LawnSite Senior Member
    from Ontario
    Posts: 846

    Are you overwatering your lawn? Are you watering late at night? Try changing your watering cycles and times.

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