Poison ivy is a broad leaf plant and if your ground cover has broad leaves as well there is nothing that you can spray on it that will remove the poison ivy and not your ground cover as well. While wearing plastic bread or newspaper bags over your gloves and long sleeves, you could paint glyphosate (active ingredient in RoundUp or other herbicides) on the poison ivy but not on your groundcover using a cheap brush, such as a sponge brush. Another possibility would be to use a long handled shovel and dig out the poison ivy. If there are woody stems, you can cut the woody stems and paint the glyphosate on the cut ends as soon as you make the cut. This will take persistence. Check weekly for baby poison ivy leaves and cut them or treat them as soon as you see them. https://extension.umd.edu/sites/default/files/_images/programs/hgic/Publications/HG34%20Poison%20Ivy... vw
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