1977 Press Photo Propane thermo-fogger creates dense cloud to kill mosquitoes.

Getting Them Where They Live-Mosquitoes are not only a nuisance, some of them carry deadly encephalitis virus, which they pick up from migratory birds and transmit to humans. Thermo-fogging is the most effective way to clear outdoor areas of them and other flying insects because it generates dense clouds of environmentally safe--but powerful insecticide that penetrates even thick bushes and shrubs. Shown here is the propane thermo-fogger by Burgess Vibrocrafters, Inc.

Photo is dated 1977.

Photo measures 10 x 8.25 inches.