On Sat, 8 May 2004 00:20:07 +0100, "David Hill"
wrote:

I'd have thought that Mildew would also be a problem for grapes in a poly
tunnel.
Again Bordeaux Mixture should work, but you must start spraying BEFORE any
signs of trouble, it will help prevent, but won't cure.

There are EU/UK restrictions on the use of Bordeaux Mix, because it
contains copper sulphate, see www.ruralni.gov.uk/pdfs/publications/
Bulletin%20Summer%2002.pdf
and
http://www.organic-research.com/Laws...ection_eu1.asp

Google for more info.