I would have presumed tests would have also included secondary and tertiary breakdown products of glyphosate. There is also research [1] that suggests measurements might not always reflect how much of the herbicide is being used and results can reflect other common products that have been released into the environment.<p>If helicopter spraying was noted before symptoms, it suggests since numerous other spraying occur around the world, that the company is using something additional to the roundup.<p>[1] <a href="https://phys.org/news/2024-07-glyphosate-european-rivers-farming.pdf" rel="nofollow">https://phys.org/news/2024-07-glyphosate-european-rivers-far...</a>