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This booklet is the 2019 revision of a similar booklet published in 2001 and the second edition. This updated edition of the guides provide management suggestions for most listed species based on a synthesis of field trials and greenhouse experiments mostly conducted in the arid southwest. The second edition included most of the invasive plant species that appeared in the 1st edition with several species added. The updated booklet is not intended to provide a comprehensive list of all of Arizona’s invasive weeds, but rather, it illustrates a few invasive plants that have become, or have the potential to become, problematic in Arizona. Publication Number: AZ1482-2016