Chriss Bowers in the uk sells grape vines that are mildew resistant. i read on this website you recomended varieties that are resistant.where can i obtain them.because my glasshouse is at the bottom of a slope i have not been able to grow grapes.tried black hamburg on many occassions.
Luckily there is a very good spray for mildew on vines that, applied thoroughly to all leaves, will give complete and lasting control in a single application.
‘Black Hamburgh’ is one of the easiest varieties to grow.
If you spray with a rose spray that contains myclobutanil, you will get control. This is used on fruit well in advance of harvest, on grapes, ideally in spring when the mildew is just starting to spread to the new foliage.