The invention relates to a dosage regime for treating an animal over a pest season, the dosage regime comprising a first dosage projectile having a unique identifier and containing a first pesticide; a second dosage projectile having a unique identifier and containing a second pesticide; and a third dosage projectile having a unique identifier and containing a third pesticide; wherein the dosage projectiles are configured for remotely delivering the pesticides to an animal; and wherein the unique identifiers indicate the timing of administration of each pesticide over a pest season. The invention also relates to use of the dosage regime to treat an animal over a pest season.
