Stark™ Ultra provides selective post-emergence control of tough annual and perennial broadleaf weeds that rob crops from vital nutrients, preventing them from reaching their full yield potential. Stark Ultra features the active ingredient fluroxypyr, a growth regulator herbicide that disrupts targeted weeds causing abnormal growth and starving it of vital nutrients. Stark Ultra has been proven effective on ALSresistant kochia making it an excellent go-to herbicide. Stark Ultra is absorbed by leaves and shoots of emerged weeds and is rainfast in as little as one hour. Stark Ultra is an excellent tank-mix partner and offers a flexible application window with outstanding crop safety.