(Riverton, WY) – A new report released by the University of Wyoming evaluating the economic impact of 10 invasive weeds on the state’s agricultural economy estimates that future infestation could potentially cost Fremont County producers more than $32 million in lost revenue annually.
The study focuses on grazing and crop value losses, finding that current losses are significant, with potential future statewide damages exceeding $110 million annually, especially from cheatgrass.
The study concluded that of Fremont County’s nearly 5.9 million acres, 15,000 are adversely affected by cheatgrass, 10,100 by Russian Knapweed, 5,000 by hoary cress/whitetop, and 2,600 by leafy spurge.
“Potential future impacts for cheatgrass are notably high in Fremont, Sweetwater, and Big Horn counties,” the study noted.
The research highlighted the importance of preventing the spread of weed types with a limited current range and provided a model for future studies. However, it acknowledges that some economic factors, like recreation, were not included.
“While there is much uncertainty regarding habitat suitability, suitable habitat used in this report provides a current best estimate of potential impacts if the weeds were left to spread unchecked.”
The report is the result of a pilot study in response to guidance from “a diverse group of Wyoming stakeholders” who developed the recommendations in the Governor’s Invasive Species Initiative Report, the Wyoming Weed and Pest Council and the University of Wyoming.