Effective and economical control measures for any pest depend on a knowledge of its life history. This film shows the life history of the Cattle Tick in detail, pointing out the two critical stages where the life cycle can be broken by a program of `planned dipping' and-or `pasture spelling'. It explains why irregular dipping, only when animals are visibly `ticky', will never be completely successful. Animated diagrams are used to make the basic principles of planned dipping and pasture spelling clear.
Produced in 1962.