Jane Ransom wrote in message ...
In article , Franz Heymann
writes

"cross" wrote in message
...
I remember reading here that milk can be used to treat blackspot on
roses.

What dilution is it made up, and when is it applied, ie. as
prevention
before the problem appears, or as treatment afterwards?

Oh......... and does it really work ;-)

I strongly suspect that it is yet another gardening old wives' tale

It was discussed here years ago and people said that it worked. I think
it is one part milk to ten parts water.

Wouldn't the residue encourage fungal and algal growth?

Mike.