I've used agrastrep17 (agricultural streptomycin) and aueromycin for soft rot....it does work well, better than "bleach water," or Comet. Downside to both these , though , is they are PRETTY strong ! They require "protective equipment" (masks, gloves, long sleeves, etc.), or they can be a danger to the applier !
The "skimmed milk" (or powdered milk), as a fertilizer
I've not actually tried it, but have read several articles "debunking" it......it IS 'all organic', but there are other fertilizers ....both "chemical and organic" that will give you the same "bang" for less money.
There are lots of culture tips around.....these "old" books are full of them, and , no doubt, most of the advice worked....at least for the person who "discovered it",in THEIR garden. Whether or not it will work for US in OUR garden
. My advice....get a soil test ! That way you know *exactly* what...if any....amendments your beds need.
