What does it say on the label? It is a contact herbicide, so spraying any foliage of unwanted plants should be effective control but it will not differentiate between desirable plants and weeds.

New to me. Is it better than round up?

I've been told that it is better than round up for thorny, rooty weeds like brambles(blackberry Rubus fructicosus) but it is not available in the EU as a herbicide, only as a compost accelerator and only at 21% concentration. So I can not find any information on its use such as dilution ratios,

when to use i.e. sunny weather, summer months and so on I would be glad to hear any feed back.

Ammonium sulfamate is a contact broad spectrum herbicide, it kills the top growth of anything that has contact with it even though it is also used as a fertilizer. Many products containing this chemical have had the registrations canceled and I find none available commercially. The European Union has banned its use as an herbicide, probably for very good reasons, although I have not seen what those were.

I can find nothing about mixing except to avoid mixing with hot water, and acids, because the exothermic reaction is quite violent.

This is probably a product best left alone.

kimmq is kimmsr

Try a product that contains triclopyr (Garlon, Brush-B-Gone, Crossbow). This has a much greater efficaciousness for use with woody weed species than does RoundUp/glyphosate.

This is most helpful, thank you all.