Insect repellent for horses. Liquid spray insecticide (product type 18) for controlling flying and crawling arthropods on horses’ skin or on surfaces in stables where insects are prevalent. It kills 99% of the insects tested (house flies – Musca domestica, German cockroaches – Blattella germanica, yellow fever mosquitoes – Aedes aegypti) on porous and non-porous surfaces within 10 minutes of application. On days when insects are particularly active, use several times a day.