"Describes the development and use of pesticides, shows the need to prevent crop losses to insect pests, and illustrates the intensive and costly effort devoted to the development of pesticides of minimum hazard to man." - Summary from Worldcat. 

"Points out that there are natural controls for many pests and plant diseases. When man destroys natural controls pestecides must be used in order to raise enough food to support the world's population." - Summary from the Audiovisual Materials Catalog 2002-2007.