Telboy, if you are prepared to accept that you are not going to get any gooseberries this year, and you want to keep the bushes you have, spray the bushes with a fungicide now. Also spray the ground underneath. In winter spray again.
That basically was Margaret Thrower's (Percy's daughter) advice on radio WM on Monday.
What she also said was that she did not like to spray any edible crops in the garden. I'm sure that is how most of us believe - if you're going to eat it - dont spray it.
But her message was, that by accepting you are not going to get a crop this year, and spraying with a fungicide now, and also later in the year, by the time the bushes flower and fruit next year the fungicide should have done its work, and should be out of the bushes system (for eating purposes).
If you still get mildew next year, grub the bushes out and burn them!!
That's the best advice I can give!!
valmarg