Rusty spots on grapvine leaves

[kamiru]

Hi, I left my grapevines for 3 weeks without care. And after back something attacked my grapevines.
https://imgur.com/a/kHsbA

Is this mold ? or nutrient deficiencies?
I dont see any white mold on fruits.
And similar rusty spots were on cucumbers and even weeds in this area.
Is my garden cursed? ;p
Please help!

 

[jgmillr1]

It is downy mildew. There are a number of fungicides you can use depending on the time before you harvest.

This is a good resource, if a little overwhelming with info:
https://ag.purdue.edu/hla/Hort/Documents/ID-465.pdf