1. Can’t make it to the GIE+EXPO 2017?
    LawnSite brings the trade show floor to your fingertips with our new GIE+EXPO 2017 Sneak Peek video series debuting now in the Lawn Mowing forum.

    Dismiss Notice

rule of thoumb/fungus models

Discussion in 'Pesticide & Herbicide Application' started by anthony, Jun 6, 2002.

  1. anthony

    anthony Guest
    Messages: 0

    can any of you guys share your knowedge on turf fungus outbreak.
    and old golf course manager sharged with me the 150 rule.
    if the max temp +the max humidity = 150 at night it is good conditions for dollor spot.

    any of you guys here of this?
    can you share yours?
  2. KirbysLawn

    KirbysLawn Millenium Member
    Messages: 3,485

    Not sure about any rules, but I know what conditions make it favorable. Here when the night temps get >70 and we have high humidity or PM storms brown patch is a comin'.
  3. Turfdoctor

    Turfdoctor LawnSite Member
    Messages: 51

    If dollar spot is a problem, your N is too low. A slow, steady supply of N will reduce dollar spot dramatically. If you go too high on N , Mr. Brown patch is coming. If you got it bad, Banner Maxx it!!!!!!
  4. tremor

    tremor LawnSite Bronze Member
    Messages: 1,476


    The 150 rule is for Pythium.


Share This Page