Organic Grass & Weed Killer, that won't stain pavers

Discussion in 'Organic Lawn Care' started by oqueoque, Apr 22, 2020.

  1. phasthound

    phasthound LawnSite Fanatic
    Messages: 6,218

    Sure, just as soon as I'm done here. :laugh:
     
    Mark Oomkes and hort101 like this.
  2. BigJlittleC

    BigJlittleC LawnSite Fanatic
    from Chicago
    Messages: 8,086

    I'll get some posters made up.

    Come see the one and only THE GREAT BARRY the Weed Yanker from Jersey. 2 days only yanking weeds and spreadin compost. Get your tickets now! Meet and greet tickets available for limited time.
     
    hort101 likes this.
  3. phasthound

    phasthound LawnSite Fanatic
    Messages: 6,218

    You'll have to wait until social distancing is over in the Garden State
     
  4. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 16,836

    Not really practical. I warmed up a mug full of water for 2 minutes in my microwave. Steaming hot. Poured the hot water on a weed in the crack in my driveway, (Veronica). After 48 hours, it is now brown and seriously injured.
    I am waiting another day or two to take photos of hot-water-treated Poa annua in patio cracks--not brown yet.

    SA400306.JPG
     
    mstrat likes this.
  5. phasthound

    phasthound LawnSite Fanatic
    Messages: 6,218

    Was the water boiling? Keep us posted.
     
  6. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 16,836

    Ceramic coffee mug, 1 minute 50 seconds in microwave. Poured steaming hot water on weed.
    Photo after 3 days.

    SA400318.JPG
     
  7. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 16,836

    Here is hot water treatment on Poa annua growing in cracks on my patio. I heated the water for about 2 minutes in a coffee mug in a microwave. Steaming hot. I checked the temp with a meat thermometer; it was 170 F. I poured the hot water into a stainless steel insulated coffee container. The hot water was poured onto the clumps of Poa--about a half-ounce. This on May 15.
    The photo shows the container and result after 5 days.
    Some of the Poa is brown and necrotic. This is especially just left of the container.
    In a few more days it will be clear as to whether it is dying or will recover.

    Of course, a Fresnel lens as a burning glass/fire starter is more portable.
    https://www.amazon.com/Fresnel-Lens-Solar-Oven-Projection/dp/B00JFTXYAU/ref=sr_1_35?crid=1Z5DAGOP7NTG0&dchild=1&keywords=fresnel+lens+fire+starter&qid=1590032393&sprefix=fresnel,aps,265&sr=8-35

    And

    https://www.walmart.com/ip/Rectangl...s-3x-Magnifying-Sheet-180x120x0-5mm/664842190

    SA400001 (3).JPG
     
    Last edited: May 20, 2020 at 11:48 PM
  8. mstrat

    mstrat LawnSite Member
    from Ohio
    Messages: 37

    Fun experiment there.
     

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