the only thing i ever found to be effective against Kielders Biting army of midges is
http://www.autan.co.uk/nqcontent.cfm?a_id=1
Off a forest ranger when i was about 14, used it ever since and im nearly 40
http://www.autan.co.uk/nqcontent.cfm?a_id=1
Off a forest ranger when i was about 14, used it ever since and im nearly 40