I have massive amounts of poison ivy in my backyard. I read somewhere that you can make a solution of salt and soapy water to get rid of it. I want to know if this solution will kill the blackberries growing in and among the ivy. Thanks, Moe
Pretty much anything that will kill the Poison Ivy, will any other plant. Even selective herbicides, such as 2,4-D don't discriminate between broadleaf weeds. To eliminate the Poison Ivy, you need to (option 1) kill everything with a herbicide (ie. Round-Up), (option 2) selectively apply herbicide to the Poison Ivy, (option 3) elmininate it's habitat by i) mowing, ii) dense shade, iii) full sun, all of which will promote a species mix & competition that does not include Poison Ivy. None work very quickly, even the herbicide method, as many of the roots will survive the intial chemical onslaught.
Oh, I almost forgot....if the salt & soapy water works on Poison Ivy, it should be equally as effective on blackberries. I can't comment if it actually works, but really salty water will kill many plants.
