Isn't fescue another warm season grass? How does it stack up? I've heard that it's not a good idea for broodmares to have fescue... but what about pleasure horses?
It can be problematic for pregnant mares because of a potential fungus in the plant. It produces an alkaloid toxin that can cause miscarriages and low or no milk production in broodmares. There are varieties that are endophytic fungus free but for the mass majority of the fields, you can't tell the status of the stand unless you planted it, maintained it and tested it. Completely safe for non pregnant horses and then it's only really an issue in the later stages of pregnancy.