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Footage from British Movietone newsreels. Shows man-made disasters featuring plane, train, boat and helicopter crashes, ships sinking and bridges collapsing. Natural disasters covered include floods,...
Biological control can be one of the most effective of all methods of pest control - self-regulating, safe and very cost-effective - but it has a limited success rate. There is interest in improving the...
A rare native moth, the Pine Beauty, suddenly reached pest proportions and caused devastating damage of pine forests in the north of Scotland. The outbreak was linked to the introduction of a new species of...
Provides examples of crop pests that are representative of the main animal groups. 30 slides are devoted to ‘Insecta’. The remaining slides cover ‘Mollusca’, ‘Mammalia’, ‘Aves’,...
All species of pine trees are susceptible to attack by the wood wasp, ‘Sirex noctillio’. When Sirex was first discovered on the Australian mainland in 1961, the softwood plantations of Southern Australia...
The life cycle of the eelworm, method of control by crop rotation, use of resistant varieties of potato.*
Examines the control of insect pests, the problems of blanket use of insecticides, and the various alternative methods of biological control by insect predators and other means.
Shows pests studied in the laboratory including the cottony cushion scale, the cabbage moth, the cabbage white butterfly, the green vegetable bug, and the vegetable weevil. Outlines the success with which...
Shows some 30 insects and their beneficial or harmful effects. Emphasises the desert locust and its organised scientific control. The film is valuable for its exceptionally good visual material which shows...
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