Discussion by UC scientists on different methods available to ranchers and land managers to control invasive weeds such as yellow starthistle, medusahead, and barbed goatgrass. Wolfgang Pittroff, Asst. Professor with the Animal Sciences Dept. at UC Davis shows the different livestock that can be used in vegetation management. Melvin George, Grazing Management Specialist with Agronomy & Range Science at UC Davis presents his research into the spatial considerations for using livestock to control vegetation, and Peter Hujik, Grasslands Manager with The Nature Conservancy, outlines the obstacles and special considerations to using prescribed fire as a vegetation management tool.