[1] In 1943, Gerberg was commissioned a second lieutenant in the U.S. Army Sanitary Corps and assigned as assistant camp medical inspector for Camp Lee, Virginia, charged with ridding the barracks of an infestation of bed bugs so severe it had received Congressional attention.
In 1946, Gerberg co-founded Insect Control & Research in Baltimore, Maryland, a business venture that became highly successful for him and his partners.
He authored the first U.S. Public Health Service pictorial key for the identification of anopheline mosquito larvae for the national malaria control program (1943), a revision of the New World species of powder post beetles of the family Lyctidae (1957), a manual for mosquito rearing and experimental techniques (1970), a manual of Florida butterflies (1989), and a bibliography of publications dealing with repellents effective against blood-feeding arthropods and leeches (2001).
For many years, he single-handedly updated and published the World Directory of Arthropod Vector Research & Control Specialists on an annual basis.
[1] Gerberg's work and expertise were recognized with a number of awards over the years, including the American Mosquito Control Association's Meritorious Service Award in 1980, life membership in the National Pest Control Association awarded in 1980, American Registry of Professional Entomologists' Outstanding Medical/Veterinary Entomologist for 1983, and honorary membership in the Entomological Society of America in 1993 and the Florida Entomological Society in 1995.