Vegetables Gardening - Growing Organic Vegetables

 

An image search in google for potato leaf diseases or even potato plant diseases should pretty much come up with what you are dealing on those plants. 

Joanne

 

 

Pretty sure it's not early or late blight. The brown spots are very small and uniformly distributed around the leaf surface. Not like the large spots typical of blight. I've seen evidence of aphids, which are the primary transmitter of potato viruses. The spots and aphids are what lead me to think it's a virus.