This covers your horse for the whole fly season. (Annually)
(Go to Spalding Labs’ website to learn more about these beneficial insects http://www.spalding-labs.com/Horses/Default.aspx).
You may use a Marigold Spray or any natural fly repellant. It will not be harmful to our fly predators. You may also use Equi Spot or something similar for tick control or a roll on/wipe on product.
Just do not use any other fly/bug sprays here on the farm.