A film titled 'Aerial smoke screen aids U.S. farmer kill pests' shows pilots prepare for spraying insecticides on farmlands to preserve crops from pests in United States. Insecticides in powder form being loaded in aircrafts. Pilots wearing masks take off in planes. Low flying planes spray insecticides on farm as a emitting white powder tail.
An animation shows a mosquito squadron training for attack on humans. They stage mock attacks and navigate a mosquito obstacle course. With training complete, the mosquitoes attack their enemy, Private Snafu, who, as a result, gets malaria and is admitted to a malaria ward. A General pins up a medal onto a mosquito soldier for successfully accomplishing the task. (World War II period).
U.S. Army Signal Corps soldier working on U.S. Army Signal Corps radio set. Views of soldier talking on SCR (Signal Corps Radio) set. Aerial view of dense forest. View across coconut trees. Bits of wire covered with fungus shown. Moisture and fungus on Signal Corps Radio equipment, test instruments and leather case shown. View of Technical Bulletin booklets. Signal Corps soldier working with MKL/GSM kit for step by step processing of units. (World War II period).
Lined up members of fungi and moisture proofing team standing near repair truck. View inside the truck. Team members enter the locker room where Signal Corps Radio-610 (SCR - 610) radio sets are kept. equipment are treated by way of cleaning, drying and spraying. Members of proofing team works on assembly line procedures used for handling many units at one time. View of treated and untreated piece of wires.
Views of United States Army soldiers talking on radio sets. A radio engineer working on a radio set. Radio sets and tubes of early times shown. Then a SCR (Signal Corps Radio) 694 radio set is displayed. U.S. Army soldiers moving in military vehicles with SCR 694 radio set and working with SCR 694 in fields. A case containing transmitter and receiver are thrown into water by a soldier. Case floating in water. Soldiers working with different components of SCR 694 radio set. (World War II period).
SCR 694 radio set components and operating accessories are shown. Four canvas bags containing components of SCR 694. A radio engineer opening every bag and showing components and operating accessories including insulator, power cable, generators and vibrator power supply.