The Truth About Roundup Herbicide
Roundup was developed in the 1970s as a non-selective herbicide, meaning it would kill almost any growing plant it touched. It was an effective burn-down herbicide farmers could apply prior to planting and it assured an almost weed-free field at the beginning of the growing season. Roundup could be used in non-agricultural situations as well, to kill weeds and grass growing in sidewalk and patio cracks, around buildings etc, but care was needed because, as noted, it was non-target and could kill whatever plant it touched.