Ok so I've never bought phyton because it is very expensive here.
But having encountered this problem before and just checking the ingredients sometimes the same product can be bought a lot cheaper.
So I checked and the ingredients seem to be 20% copper sulphate pentahydrate.
This stuff is readily available and a fraction of the price.
So can I just make my own fungicide by adding 20% into a spray bottle?
Guess I will go find out!
But this seems too easy. Has anyone else considered it before?
Found a guide on the right dosage:
https://www.hunker.com/13406855/how-...as-a-fungicide