On 5/3/2009 12:45 PM, Billy wrote:
In article ,
"David E. Ross" wrote:

If they grow well in your area (ask at a nursery, not at a hardware
store or lumber yard), try 'Perlette'.

May not be a good idea. Perlette are Vitis vinifera and west of the
Rockies they would be labor intensive to keep the mildew off.

Jeff would be better off with a Vitis labrusca which is native to his
region and used to the high humidity.

In any event, the University of Georgia makes recommendations at
http://pubs.caes.uga.edu/caespubs/pubcd/B807/B807.htm

While I get mildew on my roses, I've never seen it on my grapes,
including 'Perlette'. However, I do spray them after pruning (January)
with an emulsified mix of dormant oil and copper sulfate, at the same
time that I spray that mix on my roses and peach tree (the 1st of 2
sprayings for the peach).

--
David E. Ross
Climate: California Mediterranean
Sunset Zone: 21 -- interior Santa Monica Mountains with some ocean
influence (USDA 10a, very close to Sunset Zone 19)
Gardening diary at http://www.rossde.com/garden/diary