NOVA
Insect Alternative (5x16)
Data di messa in onda: Mag 24, 1978
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.
- Iniziato: Mar 1974
- Episodi: 1039
- Followers: 306
- In corso
- PBS
- Mercoledì alle 21