Willie
If you go back earlier in the thread you will read my experience with milk treatment. Haven’t tried evap milk though. From what I was explained, UV activates a bacteria in milk that kills PWD hence letting it sit in sun for a couple of hours worked better. I have also noticed that it leaves a glossy coating on leaves… I think that that helps spores from sticking, but could be wrong.
On another note, a bleach solution did not work for long and seemed to make it worse,