Develop a Defensive Strategy
Since at this time there are no vaccines labeled for use in horses for tick-borne diseases, protecting your horses from ticks is your best (and only) defense.
One of the first things you should know is that ticks are not just warm weather creatures. These horrid creatures can even survive in winter.
There is even one species called the “winter tick” that is only on horses during the cold seasons, even during sub-zero weather, who then spends the summer away from animals.