Technical Abstract: Weeds cost you money - either in terms of lost pasture production or in terms of expenditure on control measures. The best control is through prevention. Weed control in pastures is more than a recipe for the right herbicide for a particular weed. If you have a problem with weeds we would encourage you to discuss with your LU outreach agent, NRCS or extension service agent what will work best for your farm. Consider your stocking rate and pasture management, soil fertility and pH and whether you have a good foundation of productive pasture species to grow into spaces left after weeds have been removed. For maximum effectiveness weed control will require a combination of activities, if only parts of a management package are used the effectiveness of individual components will likely be reduced - the investment of time and money may even be completely wasted. Effective weed control for pastures may need some change in your farming practices, but remember: If you keep doing what you always have you will keep getting what you have always had.