Most producers know that clipping pastures before or after grazing to remove seedheads will improve forage quality by keeping the stands vegetative.  In the same way, harvesting grass hay fields at the boot or early heading stage provides a good compromise between quality and yield. Removing seedheads before they mature is also essential when converting a KY-31 toxic tall fescue pasture or hayfield to a novel endophyte or other improved grass stand. If a KY-31 field that is being renovated in the fall “goes to seed” then no amount of herbicide or tillage will prevent the new grass stand from being contaminated with toxic tall fescue.  ~Ray Smith