What Is... Synthetic Herbicides Posted by AttractingWellness on May 5, 2011May 10, 2011 Synthetic Herbicides Synthetic herbicides are man-made chemicals used in agriculture to kill plants that are unwanted. Selective herbicides kill only specific plants, while leaving the remainder of crops undamaged. Share this:EmailPrintRedditTwitterFacebookTumblrLike this:Like Loading... Related