Invasive Plant ManagementThe methods that we use are chiefly manual removal and chemical control. You may have seen teams of hardy buffelgrass removal volunteers, with gloves and tools, digging out the plants. Park Service staff and interns also apply an herbicide containing glyphosate during the growing season, when plants are over 50% green. Species-Specific ManagementIt is not a one-size-fits-all type of effort! For our efforts to succeed, we implement species-specific management strategies. We implement the most appropriate control technique for each species and site, considering the extent of the invasion and the threat it represents. We ensure that the control is environmentally safe and supported by research. Species-specific management strategies include:
Early Detection Rapid ResponseOne of the most important aspects of invasive species management is early detection and rapid response (EDRR). This refers to the practice of surveying and identifying invasive species and reacting to such identification in a speedy manner so as to combat the infestation as early as possible. StinknetWhile not yet identified within Saguaro National Park boundaries, stinknet is an invasive plant that has been located in areas in and around Tucson. As stinknet spreads, it is important that we practice early detection and rapid response in our management strategies of this species. Learn more about stinknet.
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Last updated: February 18, 2024