spain, Spain

I have inherited 4 well formed grapevines in my new house along with otherfruit trees. I pruned then well at the end of the season . This year they have grown great and are now covering the pergula and they are starting to form the grapes. I am new to gardening and need some advise re feeding them, watering them and if I need to dust them for any pests. All I know is that they are red and green grapes.
can anyone help!!
agnes

• 12 May, 2013