It's not necessarily the glyphosate itself directly causing the illness, it's the potential for glyphosate to bind metals that usually tie up the prions or some other tricky backdoor way of enabling of prions to become "infectious". Or the potential for the glyphosate to reduce a deer's ability to resist infection in some as yet unknown mode.While the discussion on modern ag chemicals and their potential effects on cervids is interesting. The spread of CWD has been pretty classic in the sense of a disease spread, not the spread of the use of glyphosate. If CWD was primarily associated with glyphosate, CWD would have arisen at about the same time across numerous locations on this continent. Instead, it has been relatively well tracked in its spread from a central point in those captive mule deer herds of the 1960s in Wyoming. Maybe I'm wrong, but I just don't think WY was a pioneer in glyphosate usage.
I would love to place the blame for this at the feet of Bayer, but I don't think there's a very good chance of that.
I, for one, wouldn't mind a complete ban on glyphosate's use in killing crops so they can be harvested. The rise in Celiac's disease is just one that's been linked to glyphosate in the food chain. Many modern cereal products are well above acceptable limits for glyphosate. https://www.consumernotice.org/environmental/pesticides/glyphosate-in-food/
Maybe the glyphosate (or other ag chemical) is a key factor - but it's not able to stricken a deer on its own. It only enables it if the other factors are primed for it.
Local conditions (soils, temps, water sources, plant types, and a million other factors) might be at play. It seems to fit - why else would this herd in this particular location be in BIG trouble while others aren't? Are they only getting their water from a certain groundwater reservoir or surface body of water? That type of thing.
If it's the case that certain other factors have to be in line for glyphosate (or other bad actor ag chemical) to be the poison pill, then use of that chemical itself isn't going to track directly with the prion infection rate - but it'll be the new variable that nature wasn't expecting in some areas far more than others.
I totally agree with a ban on burning down crops with glyphosate. Madness IMO.