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Do you have a reference for this? I don't mean that question in a "prove it to me" way, simply that a validated-in-some-form source would be useful to share with colleagues and clients who have an interest in these topics, but are new to it and have some skepticism as well.

It was a comment from some organic type farmers, talking in a podcast about not being able to get glyphosate test strips, because the breweries where buying them all up. (and they hadn't ramped up production for the sudden demand). I do not remember where specifically i heard it. I will poke around a bit for it, but i doubt i will find it.