When do you apply?

Ill have to try this. I had a lot of powdery mildew this year on my plants. I’m thinking it’s genetics since I’ve been reusing seed for several years and the mildew is getting worse every year.

when I see it starting. because I'm not sure how effective it is as a prophylactic... also, I usually forget. :) cukes got it bad one year & spread to my comfrey. mixed up a half gallon milk with half gallon of water... sprayed the leaves liberally, soaked the soil around the plants. did it again a few days later. didn't have any sign of it this year, but I can't say for sure it lasts.

I forgot to say, leave the milk out overnight. it's those bacteria that eat/fight/kill the PW... or so I've been told. I guess my battle with it has gotten better over time. just now realizing that. it was a few years ago that I had it bad. last couple of years, there has been any, and we had a cool wet summer in central ny.

correction *hasn't been any in the last couple years.

I'll keep it in mind for next year. Thanks for the tip! I'm sure others can get a lot out of the information too.

I would do it now. whatyagot2lose?