It is well recognized that most specialty crops do not have sufficient herbicide coverage to provide commercially acceptable weed control. As a result, specialty crops generally have more complex and expensive weed control programs than agronomic crops.
Foxtail (Hordeum murinum) is a pest plant that can dominate pastures on the Central Coast. It's not particularly good forage for livestock and the seed heads often get stuck in eyes, ears, and noses of livestock and pets.
I received the information below regarding Zeus Herbicide (sulfentrazone) that is relevant to the California tree and vine market. The product was registered (supplemental label) for T&V in 2014.