Colorado adds Ventenata grass to noxious weed list and updates management plans

The Colorado Agricultural Commission convened on March 19, 2025, to discuss significant updates to the Colorado Noxious Weed Act, aimed at enhancing the state's management of invasive plant species. The proposed changes, presented by Patty, focus on the addition of Ventenata grass to the state's noxious weed list and updates to management plans for several other species.

The addition of Ventenata, a winter annual grass known for its potential to disrupt native ecosystems and reduce livestock forage, is a proactive measure. Patty highlighted that this species has been on the watch list due to its spread in neighboring states, with recent reports indicating its presence just north of Colorado. The decision to classify Ventenata as a noxious weed is intended to prevent its establishment in Colorado, following successful strategies used in the past with other invasive species.

The commission also reviewed updates to management plans for nine species on the existing list, reflecting a rotational approach to ensure effective control measures without overwhelming county resources. Counties were encouraged to report infestation data, leading to tailored management strategies that adapt to local conditions. While only two counties opted for a one-time upgrade to eliminate certain species, the commission remains committed to supporting local efforts against invasive plants.

No public comments were received during the virtual hearing held prior to the meeting, indicating a general consensus on the proposed changes. The commission's actions underscore a continued commitment to safeguarding Colorado's agricultural landscape and natural resources from the threats posed by invasive species. As the state prepares for potential challenges from Ventenata and other noxious weeds, these updates aim to bolster community resilience and environmental health.