When you get to the point where you realize a herbicide might be nice, but aren’t set up for spraying or dealing with potential drift (droplet size is important

When you get to the point where you realize a herbicide might be nice, but aren’t set up for spraying or dealing with potential drift (droplet size is important, a mist means chemical is floating away to touch something you don’t want), look into stem injectors which is a common method to limit risk. Keep in mind timing will be important though. As always, take the PPE notice on the label seriously (sit down and read the entire damn thing), and always wear chemical resistant gloves and a splash guard for the face.