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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.
Primera cita aèria : Mar 03, 1974
Data de l'última transmissió : Aug 07, 2024
Episodi : 984 Episodi
Temporada : 51 Temporada
Temps d'execució: 55:14 minuts
Estudi: PBS
País: United States of America
Repartiment:
Tripulació:
