The Nature of Things

The Battle Against Biting Insects (7x4)

Data di messa in onda: Lug 11, 1966

An examination of some of the most sophisticated methods of pest control such as: unbalancing the insects' nutrition; killing them by ultrasonic or other shock waves; sterilizing the males through ionizing radiation or light flashes; drowning the larvae in traps; or interferring with mating and egg-laying by light, colour or electricity.