Equine america fly repel spray the equine america fly repel spray has been developed with natural ingredients that provides fantastic natural protection from biting flies and also help to prevent the diseases that they carry this spray can be used on horses ponies and camelids and provides relief for up to 8 hours fly repellent spray provides relief from mosquitos midges and or other biting insects natural ingredients lasts up to 8 hours can be used on horses ponies a