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Looks at the main skin parasites of the sheep, from sheep scap to blowfly, and describes each, giving details of how to identify them, the problems they cause, and how to treat them. Presents several...
The inter-relationships between the alder wood-wasp and four hymenopterous parasites are shown in detail. Two of the methods of parasitism were new to science when the film was made.
The warble fly is an economically important parasite of cattle. Describes the life cycle of the warble fly and discusses methods of its control, including use of one of the first systematic insecticides to...
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