When to start prevent apps, brown patch

Discussion in 'Pesticide & Herbicide Application' started by ArTurf, Sep 17, 2013.

  1. ArTurf

    ArTurf LawnSite Gold Member
    Male, from Ark
    Posts: 3,409

    What are some indicators that you use to start preventative apps of fungicide for brown patch in St Aug? We've had summer like temps but it will be cooling off into the 50's this weekend with highs in the 80's. I plan on starting apps next week. What is your plan?
     
  2. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,080

    Why don't you try the corn meal routine??? I'm not familiar with warm-season grasses and don't have fungal problems myself,,, but I hear from many other sources that corn meal will correct the pathogenic population in the turf??? Relying on "Fungicides" doesn't really help anyone according to the long time professionals who actually used them... Lots of people "Make Claims" but when you get right down to the nitty-gritty it is all smoke and mirrors... :)
     
  3. grassmasterswilson

    grassmasterswilson LawnSite Platinum Member
    from nc
    Posts: 4,513

    I apply preventative fungicide to centipede/st aug lawns who have a history of large patch in the fall and spring. I normally get it down when soil temps reach 70 degrees or there about.

    What is the corn meal thing?
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  4. ed2hess

    ed2hess LawnSite Fanatic
    Posts: 13,078

    I seen some brown patch in an over water area and days are 90 and nights are stll mi 70.
     
  5. BlazersandWildcats2009

    BlazersandWildcats2009 LawnSite Member
    from Houston
    Posts: 197

    Smallaxe, I seen you mention Corn Meal and post on the organic forum multiple times. Are you gearing towards the Organic way? We are using organics on all our vegetables and I would like to gear our new Zoysia towards being dependent on Organics rather than chemicals. This first year I'm going to stick to a mild blended Lesco and plenty of organic materials. I would love to have that lush and healthy organic lawn, I know it takes time and work though. I plan on composting 2-3 times a year, so hopefully that will be a start!
     
  6. Smallaxe

    Smallaxe LawnSite Fanatic
    Posts: 10,080

    My organic activity is limited to compost, Milorganite, overseeding, mulch mowing and spot spraying for the most part and I personally have no fungal issues to deal with...
    I have heard over and over again that the corn meal activates certain microbes in the soil that negates the overpowering influence of the pathogenic fungi causing various diseases... So I really can't speak from experience, but it makes a lot more sense than trying to sterilize dirt,,, therefore I bring it up as a possible solution for those dealing with disease...
    Drainage is a primary issue for all fungal diseases and a well structured soil drains better... organic activity in the soil builds structure so there is a Double Benefit from the corn meal, which also makes sense to me...
    It would be nice to hear real success stories from This Forum, but so far only other sources have reported on corn meal... :)
     
  7. foreplease

    foreplease LawnSite Bronze Member
    Posts: 1,902

    ArTurf: there are some good people here from your part of the country who will be able to help you. I am a northerner who knows what conditions favor Rhizoctonia (Brown Patch) on cool season turf as well as what the signs and symptoms are. Those are the things you need to know for your area and turf types.

    I find this talk about corn meal, particularly from someone who has not used it, to be laughable, irresponsible, and dangerously reckless. One thing leads to another, as it often does in our exchanges here on the forum, and all of a sudden we have a new homeowner with an expensive newly sodded yard ready to jump ship and rely on something from someone who a) does not take care of warm season turf and b) has not tried the "product."

    Say what you will about what contributes to the conditions that favor brown patch - good luck reducing temperature and relative humidity with corn meal by the way - but the causal agent Rhizoctonia leads to the development of Brown Patch. Yes, cultural practices that reduce moisture at the level of the plant crowns, good drainage and soil with adequate air exchange, not applying nitrogen when weather conditions favor outbreaks of Brown Patch are helpful.

    This corn meal must be some product. We have people claiming it prevents crabgrass germination, kills broadleaf weeds, and now prevents Brown Patch. If it was green, we could just install corn meal lawns instead of grass huh?
     
  8. phasthound

    phasthound LawnSite Platinum Member
    Posts: 4,568

    Listen to Foreplease. Using cornmeal as an effective preventative for fungal problems will not provide good results.
     
  9. ArTurf

    ArTurf LawnSite Gold Member
    Male, from Ark
    Posts: 3,409

    I understand the conditions that contribute to brown patch in warm season turf and I control them to the degree possible. Of course it still shows itself.

    As always I feel there is more I can learn. Thanks for the info all.
     
  10. countryclublawnllc

    countryclublawnllc LawnSite Member
    Posts: 151

    Is that corn meal "gluten free'?
     

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