Oh no! It looks like the dreaded potato blight. Almost overnight, our healthy looking potato plants have been reduced to this.
Ours are not the only plants to suffer. A quick tour of other plots showed a similar story. The extremely wet weather so far this 'summer' has taken its toll. We have been advised to dig up all the potatoes and store them. So as soon as it stops raining, that is what we are going to do. I hope you other growers out there are faring better.