Name Fly Repellent Four-In-One Gel Price £6.50 Extended Description Approved under the Control of Pesticides regulations 1986 for use as directed. Complies with latest (2006) legislation. HSE licence Number: HSE 8039. Specially formulated in Scotland to give long term relief from flies, midges and all biting insects. Contains Tea Tree Oil. Brilliant as a Sweet Itch preventative.