This product also kills and repels ticks and mosquitoes for up to 30 days 1.Bend at perforation and tear off first month???s applicator. 2.Hold applicator and bend area of plastic at perforation, tear off and discard. 3.Hold applicator upright and snap tip back, away from face and body. 4.Position the tip of the applicator on the dog???s back between the shoulder blades. Apply 1/2 of the contents of the applicator. 5.Invert the applicator to an upright position and move to the dog???s hindquarters. Position the tip of the applicator at the base of the tail and apply the remaining contents of the applicator. 6.Do not reapply product for 30 days.