Poison Ivy Vegetation Killer

topic posted Tue, May 29, 2007 - 9:35 AM by  janeO
Spring is one of the very best and easiest times to rid your land of poison ivy in a safe, environmentally friendly way.
SIMPLE SOLUTION:   The key is catching the plant when the leaves are new and shiny.

Here is an easy formula for killing new poison ivy growth using simple kitchen cupboard ingredients:
Soap has been used for centuries as an all-purpose herbicide.
Note: Buy a liquid soap and not a detergent. Health food stores have liquid soaps, such as Dr. Bronner’s Pure-Castile Soaps.
Soap Spray
4 tablespoons liquid soap
1 quart water
-Combine ingredients in a bucket, mix, then transfer to a spray bottle as needed.
**Note that this recipe will kill neighboring vegetation also, so focus the spray on the poison ivy.
Here is another alternative solution to herbicides: Goats! For some reason, Spanish and Angora
goat breeds absolutely love poison ivy. Make sure you get those particular breeds; most others
don't like poison ivy for their main meal. I would love to have goats, but my family won't let me... !

Here is the homemade poison ivy vegetation killer spray that I've found is safe and effective
if you are reading this when the leaves are no longer shiny:

Poison Ivy Vegetation Killer
 1 cup salt
 8 drops liquid detergent
 1 gallon vinegar

Combine the salt and vinegar in a pan and heat to dissolve the salt.
Cool the vinegar, add the detergent, and pour some of the liquid into a large spray bottle.
Spray the vegetation. (You can also just pour the mixture onto the weeds.) Refill the spray
bottle as necessary. Note that this formula will kill all the vegetation, so make sure that you
are only spraying the plants you want to kill. If you need to use a lot of this spray, avoid
spraying it near wells, as the salt can leach into your water supply.
posted by:
janeO
SF Bay Area
  • Re: Poison Ivy Vegetation Killer

    Tue, May 29, 2007 - 9:17 PM
    what about the roots? Them thangs are NASTY
    • Re: Poison Ivy Vegetation Killer

      Tue, May 29, 2007 - 9:38 PM
      will it work for invasive blackberries? i swear nothing short of a time machine to go back and destroy their ancestral roots will do it.
      • Re: Poison Ivy Vegetation Killer

        Tue, May 29, 2007 - 9:54 PM
        Seriously. I have those blackberry monsters invading my back yard. I've heard the salt solution will do them in, but "salting the earth" is really the nuclear option when it comes to weed control.
        • Re: Poison Ivy Vegetation Killer

          Wed, May 30, 2007 - 4:39 PM
          I have found that morning glory flowers will kill blackberries. The vines strangle them out.
          • Re: Poison Ivy Vegetation Killer

            Thu, May 31, 2007 - 2:46 PM
            yeah, but what then kills the morning glories? They're right up there with blackberries in their inability to get rid of..
            • Re: Poison Ivy Vegetation Killer

              Thu, May 31, 2007 - 8:04 PM
              They die back in the winter then I just till them in and weed any that pop up. Much easier than fighting a tangle of thorns every year, which I have to do too much of anyway.
              • Re: Poison Ivy Vegetation Killer

                Thu, May 31, 2007 - 9:27 PM
                "Much easier than fighting a tangle of thorns every year, which I have to do too much of anyway."

                in North central India, they have a thorn that can go through car tires
                • Re: Poison Ivy Vegetation Killer

                  Wed, March 12, 2008 - 2:24 PM
                  The past few weeks, the poison oak shoots are emerging
                  and I have been spraying with the recipe and it works great.
                  In a couple of days, the tiny shiny leaves are shriveled and dried up.
                  I spray paint them also so they can be identified later
                  when I figure out a way to get that stuff out of here.
                  I have one trunk that is more than and inch and a half thick!
                  What power in that stick.
                  Any idea's who I can call in Marin Co for help with this?
                  • This is the maximum depth. Additional responses will not be threaded.

                    Re: Poison Ivy Vegetation Killer

                    Mon, March 31, 2008 - 11:23 PM
                    In Sonoma County we were doing some forest restoration work.
                    My method was to just whack the hell out of it with a machete.

                    I got it out. some of the trunks were between 3-5 inches thick.
                    i also got the worst case of poison oak ever. it went systemic
                    and took over a month to get rid of, with residual
                    burning for weeks even after that.

                    so, whatever anyone says, machete 4 poison- bad.

                    just though i would share
        • Unsu...
           

          Re: Poison Ivy Vegetation Killer

          Mon, March 17, 2008 - 11:25 AM
          dealing with black berries is fairly easy:
          first cut 'em back to the best of your ability (goals can help with this)
          thickly mulch the area (I'm talking feet here)
          the blackberries have root-masses that will start forming higher on the plant and grow into the loose mulch.
          over the next few years, it will be much easier to remove the roots from the loose mulch rather than the hard sub-soil.
          • Re: Poison Ivy Vegetation Killer

            Tue, April 1, 2008 - 7:48 AM
            I'm always in favor of sheet mulching in these cases. As long as you don't mind killing everything growing right around the plants as well, which in the case of blackberry thickets is usually nothing! The trick is to use something the berries can't grow through. An old carpet, tarp, old sheets of plywood, anything opaque so that no significant light gets through. Cardboard can work, but get large sheets from a furniture store and overlap them well. Blackberries are really runny, so they will try to keep poking their heads out through any cracks, or out the edges. If that is prevented from happening with a little maintenance, then it's just a matter of time till it's completely dead under there. Of course you have to cut it off flush with the ground first, or close to it. It's a lot of work, but I think it's the least work in the long run and you can often leave the mulch in place and have a clean slate to start new stuff in. We just cut back a poison oak plant that's going to get this treatment. I like poison oak and like to leave some of the large bushes especially. The thickets are always full of twittering little birds some of which eat the berries. Also, the bees go nuts over the nectar in the flowers which are deliciously fragrant. Then again, it can be a huge pain in the butt too and I kill a fair amount of it, especially all these little stragglers growing around just where you want to walk.
  • Re: Poison Ivy Vegetation Killer

    Thu, May 31, 2007 - 7:40 PM
    This was just sent to me by a friend so I haven't tried it yet.
    I do have another friend who uses a commercial
    "more earth friendly" vinegar based vegitation killer
    and it is truly amazing how well it works.
    I rejoiced to get the recipe and will post my results
    after I have actually used it. I have lots of broom, blackberry and
    poison oak seedlings to deal with.
    • Re: Poison Ivy Vegetation Killer

      Fri, March 21, 2008 - 10:40 AM
      Would anyone be willing to send me some of their blackberry plants? I'd love to grow them if they actually produce blackberries. I'm in zone 3b and they seem to die on me. ANyone have some real hardy ones that just won't die? I'd love to try them!

      Also, if you buy a strong agricultural vinegar sold at the farm supply store to spray on the weeds, it will kill them, and everything around them. But it has to be the really strong stuff, not household strength.
  • Re: Poison Ivy Vegetation Killer

    Sat, March 29, 2008 - 4:51 PM
    These are top killers and will have to be re-applied many times to get to the roots. If you use a brushhog before they leaf out you will be able to identify were the root clumps are and pull tem out with a claw hoe. Wear old pants and shoes that you don't mind throwing away in case you get them contaminated with the resin. You can use the same technique for bramble

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