Repel-X®p 16oz for Horses.

The horseman's choice for more than 30 years. Diluted 1:7 with water, Repel-Xp provides economical protection from house flies, horn flies, gnats and mosquitoes. Mixed at 1:4 dilution, kills ticks, horse flies, deer flies and stable flies. Single application keeps flies, gnats, ticks and mosquitoes off horse for days. Superior fly control that's easy on the budget.

From Farnam