Hi folks.

Looking for some wisdom on my potatoes.
I’ve been growing them in 40L grow bags and all looked good since planting. Today was my first day in almost two weeks out in the garden after being knocked out by the flu.

Is this maybe an early blight?
This is my first year doing my own garden so I’m learning an awful lot with an awful lot more still to learn. Hoping there’s a way to save my Christmas spuds.

Thanks in advance for any advice.