Roundup: Should It Kill Poison Ivy?
bob haller wrote:
mix 50 / 50 round up with poision ivy killer. that works fast and is 100% effective.
Same here. I use 50 / 50 glyophosphate with brush killer (usually 2,4D). Mix
both to the highest concentration listed on the label. It still takes a week
before the leaves start to curl and up to a month befor they go brown.
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