You really should Google Roundup + toxicity.
It’s the nastiest stuff ever unleashed upon the ignorant public.
A relative who has a greenhouse and ‘professional chemical permits’ had access to it long before it hit the store shelves and he used it to exterminate the Mutliflora bushes around our bog.
That was 10 years ago and we’re just now seeing an occasional frog or toad and we rarely see the salamanders that were formerly *everywhere*.
[or any of the small predators that survived by eating the aforementioned]
The peeping and croaking used to be deafening here on a summer night.
Not any more.
It’s as silent as a tomb, thanks to the kill-off of everything unfortunate enough to have contacted it and its residues.
It’s horrifying to discover that anyone is actually using it on -food- crops.
I know a fair bit about toxicity of pesticides and xenobiotics in general. Roundup is about the most widely used herbicide on the market. Roundup toxicity to weeds is specific and very potent. Its toxicity to animals is quite low; actually about as toxic as table salt. I don’t mean to be flippant, but your attribution of the decline in amphibian population in your area to roundup is not a controlled experiment. Roundup (glyphosate) is not the culprit. Check the refereed literature and you will find that I am close to the mark here. I fear that many people are misled by the old media on this issue as well as most political issues that don’t favor liberalism.