There's a minor face-slap with this: i think they mean -icide
Presuming it's accuracy, the map is interesting to me; How do the 4 corners, Oregon & Wyoming, &c. stay so virginal.
No debate with me that most of that is bad shit, but when I saw "paraquat" listed as a "pesticide" that's a red-flag to me. 'Paraquat is classified as a non-selective contact herbicide. ' -- wikipedia