The Biological control of insects [Excerpt]
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Shows a number of insect pests close-up in the laboratory. Outlines the success with which they have been controlled by their natural enemies and by the use of virus diseases. Suitable for secondary years 7-12.
Sources
- 16mm Filmography (legacy record) — title, description, catalog record
Original permalink · Record added 2026-01-23 04:08:41