BugLyte (AniMed) is an insect deterrent supplement that contains garlic, thiamin, niacin and grape seed extract to deter flies and mosquitoes away from horses. It also contains Diatomaceous earth to deter fly breeding in horse manure.
Feed 1 ounce per 1,000 lbs body weight daily for 21 days, then feed 1/2 ounce per 1,000 lbs daily.
It will take up to 2 weeks for this supplement to reach full effectiveness.