Thousands of them stubbed their left small toe last week. Is that also the fault of pesticide?

Nothing in this article indicated any causal relationship nor that they have a higher or lower incidence rate of Parkinson's.

"Critics point to research linking paraquat exposure to Parkinson’s, while the manufacturer pushes back, saying none of it is peer-reviewed."

What lead it to being "banned in dozens of countries all over the world, including the United Kingdom and China"?