tree guys

Discussion in 'Pesticide & Herbicide Application' started by naughty62, May 26, 2007.

  1. naughty62

    naughty62 LawnSite Senior Member
    from iowa
    Posts: 368

    Whats the best fungicde for rhizo. needle cast .1 completely dead 6ft. spruce , old sidewalk construction got into the roots and across the yard a12 footer with 2foot of lower branch dieback .Yes black pycnidia in the stomatas ,lab test no .blue spruce ?
     
  2. heritage

    heritage LawnSite Bronze Member
    Posts: 1,283

    Hi Naughty,

    Chlorothalonil (Daconil Weather Stik) For Rhizospharea Needlecast.

    1st spray when new growth is 1.5" long. 2nd spray when new growth is 3" long.

    Also limb up tree a foot or so from the ground to improve air circulation.

    Pete D.
     
  3. teeca

    teeca LawnSite Bronze Member
    Posts: 1,202

    i second the daconil
     
  4. Tscape

    Tscape LawnSite Bronze Member
    Posts: 1,370

    Banner Maxx
     
  5. heritage

    heritage LawnSite Bronze Member
    Posts: 1,283

    Tscape,

    Did the Banner Maxx work for you? RN is not on that product label.


    Pete D.
     
  6. Tscape

    Tscape LawnSite Bronze Member
    Posts: 1,370

    Yes, propiconazole will control needle cast.
     
  7. philk17088

    philk17088 LawnSite Fanatic
    Posts: 17,386

    mancozeb works well and costs waaaay less than the others.
     
  8. ampeg76

    ampeg76 LawnSite Senior Member
    Posts: 297

    i priced mancozeb one time, gallon vs gallon - it is cheaper, but the high rate usage makes it more expensive, not to mention its so messy
     
  9. americanlawn

    americanlawn LawnSite Fanatic
    from midwest
    Posts: 5,861

    We've been using Daconil for years, but we're also trying out Compass on Blue spruce trees. Needle cast seems to be one of those tree funguses that is difficult to control >> weather, air flow, site, etc. It's not a disease we guarantee complete control of. It's a tough one. Often two sprays just are not enough, but it makes the homeowner feel better. Hey -- how 'bout apple scab? Crabapples are all of a sudden dropping many leaves! Anthracnose too. Looks like a "disease season" rather than an insect season so far in IA.
     

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