http://ohiopoisonivy.blogspot.com/2014/06/experiment-vinegar-salt-and-poison-ivy.html
Well, it didn't exactly work 100%. A lot of it died, but some came back this spring. As you can see below, here are nice new red leaves on that plant.
And about 10 days later, the leaves turned green. Worse yet, there were more of them.
I think I'm going let it grow for a little bit to see how many of the leaves really do come back. Then I'll spray with more vinegar and see what happens. The real test will be if it comes back again.
The thing with poison ivy (or any other plant for that matter) is that they must have foliage to make their food; you know, photosynthesis. When I killed off the leaves last fall, the plant still had some energy stored in its roots. Therefore, it could make more leaves. But, it stands to reason if I kill the leaves enough times, eventually the plant will run out of energy and actually will die. I'm going to try that and see what happens.
Of course, though, I might have another use for the plant. Last year I had this test plant in a pot. It was growing nicely and was very happy in the pot. I went away on vacation and my neighbor would not water it, so I came home and it was dead. (I can't say as I blame her for not watering it. She didn't want to take care of the scorpions I was babysitting from work a few years ago, either.)
The plant that died never grew back. I'm telling you that the surefire way to kill poison ivy is to just stick it in a pot.Works every time for me.
I'll keep you updated on what happens with the next round of vinegar.
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