I checked with our State Specialist about a "lawn friendly" form of Roundup and he was not aware of such a product. I suggest you read the label carefully and see what the active ingedient is. If your Roundup product contains the active ingredient glyphoste, then that product is a non-selective herbicide, which can then injure and kill the plants it's been sprayed on. If it does not contain gyphosate, please let me know what the ingredients are and I'd be happy to followup on this for you.