Darn it.... is this potato blight

Has been pretty slow coming... noticed some spots on the leaves of my spuds about a week ago. This picture doesn't really do it justice, but I'd say about 50% of the leaves look like this.

Blight? I think I already know the answer...

If that was blight a week ago, your spuds would probably be brown and mushy now.  When I got it 4 years ago, it only took days for the haulms to rot.

Nasty thing blight!   hope it isn't that!

my potato plants leaves turned that colour last season. The experts on my site suggested it was probably the manure i had put on the ground that was infected with that amniro thingy weed killer.

my potato plants leaves turned that colour last season. The experts on my site suggested it was probably the manure i had put on the ground that was infected with that amniro thingy weed killer.

Aminopyralid distorts growth.  It doesn't tend to make discolouration.

Mine got magnesium deficiency and looked just like that. I think it was a combination of factors - my soil is very acidic, which can make it difficult for the plants to 'unlock' various nutrients in the soil, also the rain has leached a lot of goodness out of the soil, plus I might have overdone it with a potash-based fertiliser (a plant will often take up potassium at the expense of magnesium).

You can get Epsom Salts at your local garden centre - it's a pretty mainstream product.

If you google 'potato magnesium deficiency images', you'll be able to compare yours with some similar-looking plants...

we got our first full smith warning email today and am not a million miles from you, so i read this link again :
http://chat.allotment-garden.org/index.php?topic=95198.0

Well done for signing up shoozie. We got another warning yesterday too after three days in a row, a few days ago.....

are those yellow leaves near the bottom of the stem? its just that i've got those yellow leaves with brown spots and i just took them off with ease thinking the lack sunlight down below caused it to be like that. overall the upper leaves are very healthy dark green with budding flowers

I just had a look at the map and spotted that one too shoozie. Quite a few more have popped up all over the UK today.