Regenerators will be aware that the most common herbicide that volunteers use for spraying and dabbing weeds is Glyphosate (Zero, Roundup etc). There has been debate globally regarding its carcinogenicity.
On 9–13 May 2016 experts met at WHO headquarters and concluded glyphosate is unlikely to pose a carcinogenic or genotoxic risk to humans. More…
The Australian Pesticides & Veterinary Medicines Authority report that “All glyphosate products registered for use in Australia have been through a robust chemical risk assessment process and are safe to use, provided they are used as per the label instructions“