In article .com.au,
Daniel Hanna writes
In aHlwYXRpYQ==.463888f8077d37b45d1466a2584bec8f@104 6317008.cotse.net
Shiva wrote:
There are plain fungicides like Funginex, and all manner
of "organic" recipes consisting of things like Baking Soda and such.

This year I tried an organic method, not for any kooky green reason but
because many Australian rose forum people swear by it.

It's a spray of one part milk, 5 parts water. And it works almost
instantly. I'm still amazed at how something so simple can beat every
chemical spray out there, because I normally believe the opposite.

Does it work for blackspot?
--
Jane Lumley