The herbicide has been ubiquitous since the 1970s. The only thing that has changed is the politics - the realisation that if activists throw enough mud then sufficient will stick to scare ignorant and spineless politicians to be seen to be ‘doing something’. Bear in mind that the dire need to protect crops led to the use of some really nasty chemistry - often involving toxic metals - was actually better than starvation. (Actually, the organic movement still uses some of it on the grounds that copper isn’t synthetic)
This needs to be frozen.
I believe it was a scientific study. The suggestion was that the bees loose beneficial gut bacteria, leaving them more vulnerable to infection. Obviously its just one study and may not be right, but probably worth keeping an eye on any further developments, especially if you keep bees.
Cheap as hell due to findings on it not being very nice stuff for all concerned m
As a kid we used to have fun with my Dads sodium chlorate