The Environment Agency seems to still think JK is a problem. From its site;You must not import, transport, keep, breed, sell, use or exchange, grow or cultivate, or release into the environment certain invasive alien species. If you do, you can be fined or sent to prison for up to 2 years.JK is on the list the above refers to. I would have to assume that anyone suggesting using boiling water on it, has never had to manage JK. Its rhizomes can extend 7 metres (23 ft) horizontally and 3 metres (10 ft) deep. In areas of series infestation, it can spread for miles.The agency approves Glyphosate for use near water courses to control JK.The environment agency is keen that people treat JK, as it is a serious problem and it will approve use of an appropriate, glyphosate based herbicide near water courses.Glyphsate isn't banned in the EU,it is licensed until December 2022 https://ec.europa.eu/food/plant/pesticides/glyphosate_en#:~:text=Status%20of%20glyphosate%20in%20the,an%20evaluation%20of%20its%20safety.The IARC hasn't assessed the risk of Glyohosate causing cancer, it just has it as a probable hazard, along with hot beverages, working nights or being a hairdresser. The "probable" means it doesn't have evidence of it causing human harm and hasn't any evidence on the level of exposure that would be harmful and the liklihood of that occuring.Group 1, things known to cause cancer include; alcohol, contraceptives, sunlight, wood dust, salted fish, working as a painter. Things that are not banned, although people are likely to have more contact with them than glyphosate, which the IARC has as a lesser hazard, Group 2a and not as a risk.
Kathleen Healy ● 2296d