The revised Arizona State Noxious Weed List became law on January 4, 2020. The updated rule is posted on the Arizona Dept of Agriculture website. The list and updated rules will appear in the Arizona Administrative Code with the first quarterly Code Supplement of 2020. A recent article by Patti Fenner was published in the Plant Press with more details.
— The SWVMA Noxious Weed Working Group
Patti Fenner, John Brock, John Scheuring and John Richardson