Any problems mixing Salt with Roundup for weed killing?

Discussion in 'Lawn Care/Landscaping' started by tracyballard, Apr 30, 2019.

  1. tracyballard

    tracyballard Member

    Joined:
    Feb 3, 2015
    Location:
    Texas
    Trying to permanently kill weeds and anything else growing in certain areas of my alley and sidewalks. Would it cause any toxic hazards if I mix salt and roundup to apply all at once? thanks in advance
     
  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    Not a toxic hazard, but Roundup is for short term killing. You can use roundup (without salt) and plant few days later.

    For longer term crack etc killing, you would be better to use vegetation killer designed for that.
     
    Last edited: Apr 30, 2019
  3. Sponsor

    Sponsor Paid Advertisement

     
  4. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    Regular Roundup takes two weeks for a full kill, root and all. No reason to add salt, however using salt alone will kill everything but a longer while for the salt to leach out of the soil. Roundup does not kill seeds. Roundup comes in all kinds of Glyphosate concentrate. The higher the concentrate percentage, the higher cost. Glyphosate is now available in generic formulas. Most herbicides of other brands will be glyphosate and at any level of concentrate.

    Roundup Quick Pro: It's the Diquat that make it a 24 hour kill
    ACTIVE INGREDIENTS:
    *Glyphosate, N-(phosphonomethyl)glycine, in the form of its ammonium salt.......... 73.3% .
    Diquat dibromide [6,7-dihydrodipyrido (1,2-a:2’,1’-c) pyrazinediium dibromide] ...... 2.9%
    OTHER INGREDIENTS: ............................................................................................... 23.8%
     
  5. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    The only two members of my family that liked using Roundup are now dead. The rest of us are okay though.
     
  6. Sarg

    Sarg Enjoy Learning

    Joined:
    Nov 6, 2020
    Occupation:
    Recently retired
    Location:
    NorthEast
    Just read this tip yesterday to replace "Round-up".
    It was on Facebook so it must be true.
    In sprayer :
    Mix one gallon vinegar ( Heinz makes a hi-acid white vinegar available at grocery stores )
    2 cups of Epsom salt
    1/4 cup of Dawn dish soap

    The claim is it will kill any vegetation it is sprayed on.


    Weed be gone.jpg
     
    Last edited: Mar 28, 2021
  7. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    Vinegar is acidic that will wilt plants. It doesn't kill off the roots.

    Epson salt is not salt, it magnesium, sulfur and oxygen. Good for plants, especially palms that turn yellow for lack magnesium. Just look at a bag of palm fertilizers and other shrubbery plant fertilizers. Some are all magnesium. The chemical supplier I used to buy from sold epson salt in 50 bags. South Florida is about 50% palm trees and you'll see many with yellow palms.

    Dawn acts as a surfactant to break down the water repellency of the top part of the leaf surface.
     
  8. LLigetfa

    LLigetfa DIYer, not in the trades

    Joined:
    Feb 6, 2011
    Occupation:
    Semi-Retired
    Location:
    NW Ontario, Canada
    I use muriatic acid as it is cheaper and available in higher concentrations. Be careful near concrete as it will etch it. To keep weeds off of my gravel driveway, I put down calcium chloride flakes. Sometimes I dissolve it in muriatic acid and water for faster action.
     
  9. Sarg

    Sarg Enjoy Learning

    Joined:
    Nov 6, 2020
    Occupation:
    Recently retired
    Location:
    NorthEast
  10. reesekPal

    reesekPal New Member

    Joined:
    Oct 28, 2021
    Location:
    UK
    Wouldn't it be safer to use a trimmer? I just wouldn't risk using something I'm not sure of on the ground. I mean, it could be dangerous, and it could poison the land. For the weed-killing, I use a trimmer from time to time, and it works great. I use this one - https://trimthatweed.com/milwaukee-string-trimmer-review/, but you can use it wherever you want because I think every trimmer will bring you the results you want.
    So, please, don't use anything you're not sure is safe because there could be irreversible consequences.
     
    Last edited: Nov 20, 2021

Share This Page