Son used lemon/eucalyptus last summer and was very popular with his company mates not only for smelling good but for sharing. Was very effective during July at Camp Buckner.
I imagine it also worked against ticks and other ground force bugs.
I had a July adventure once which also ran into August but we were in malaria endemic Africa where the female anopheles required we slime our bodies with DEET spray. And take a Mefloquine pill. Came to find out later that Mefloquine has numerous bad effects including psychosis. I got a medal for running a successful anti-malaria campaign but turned a company-plus size force into a bunch of loons.