A lot of my parsnip leaves are going brown and brittle. Do parsnips suffer with blight or is this some other disease
Certainly not blight!
Would say they are beginning to die back a touch.
ours are like that, been pulling them for a couple of months now, they're getting really huge ;D
Yes it does mean the leaves are dieing back Spring, like the Scousers I pulled a few already but they are best left in the ground until we get some frost, I only pulled mine because the whole line I put in came up, so I need to thin them but are big snips that I'm thinning so they are hard to pull up without disturbing the others. ;D ;D ;D