Natural pesticides gain ground in 'agri-tox' capital Brazil
Inspecting a thriving green field, Brazilian farmer Adriano Cruvinel is beaming: Using a fraction of the chemical products he used to, he is growing even more soy, thanks to natural pesticides. Agricultural powerhouse Brazil may be the world leader in chemical pesticide use, but Cruvinel is part of a growing trend of farmers turning to natural products known as "biopesticides." "Our soy