State is US’s largest user of pesticide that is virtually proven to cause Parkinson’s diseaseCalifornia is banning paraquat, a highly toxic, controversial herbicide used across millions of acres of American cropland.

State is US’s largest user of pesticide that is virtually proven to cause Parkinson’s diseaseCalifornia is banning paraquat, a highly toxic, controversial herbicide used across millions of acres of American cropland.