Overview
In a world that each year loses up to 40 percent of its crops to insects, some form of pest control is desperately needed. But chemical pesticides have backfired. Pesticide-resistant insects frequently develop, and previously harmless insects have become devastating infestations. Farmers have found themselves trapped on a "pesticide treadmill"—the more they spray, the more they have to spray. NOVA examines several alternatives for pest control.
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5 - 1In The Event of Catastrophe January 04, 1978 -
5 - 2The Green Machine January 11, 1978
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5 - 3Blueprints in the Bloodstream January 18, 1978
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5 - 4One Small Step January 25, 1978
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5 - 5The Final Frontier February 01, 1978
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5 - 6BaMiki BaNdula: Children of the Forest February 15, 1978
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5 - 7Trial of Denton Cooley February 22, 1978
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5 - 8The Great Wine Revolution March 01, 1978
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5 - 9The Case of the Ancient Astronauts March 08, 1978
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5 - 10The Mind Machines March 22, 1978
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5 - 11Icarus' Children March 29, 1978
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5 - 12Still Waters April 12, 1978
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5 - 13Battle for the Acropolis April 19, 1978
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5 - 14
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5 - 15Laser : Light of the 21st Century May 10, 1978
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5 - 16Insect Alternative May 24, 1978
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5 - 17The Desert's Edge May 31, 1978
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5 - 18The Tsetse Trap June 07, 1978
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5 - 19Memories From Eden June 14, 1978
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5 - 20A Whisper from Space June 21, 1978
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5 - 21Alaska: The Closing Frontier June 28, 1978
