My Leeks Have Died

Hello, I'm sorry if this has been previously discussed but I couldn't find any similar topics using the search.

My leeks have suddenly died back, Monday they were all looking great however by Friday they had died and look like the attached photo.

This problem has now spread to my spring onions, they were looking fine until today. They now seem to have gone the same way as the leeks though.

I think it is a problem with onions in general as I have parsnips in the ground near the leeks and they are still doing well.

It is not just my patch of land which has had this problem, My parents and their neighbours have had exactly the same thing happen this year. We have all used different varieties of leeks so I don't think it is a specific type.

Does anyone know what the cause of this could be?

 

Jings, is that brown tangled mess your leeks Hamster.
What a shame.
Sorry I can't help but I'll watch with interest - just in case it happens to mine :(

 

Can't really tell much from the photo Hamster.
Check the roots - if there are maggots there you've a case of onion fly.
If the leaves ahve been tunnelled it's leek moth, though you would normally spot this before total collapse.
White fluffy fungus at the base of the roots is white rot which can act fairly quickly.
Grey mould on the leaves would be downy mildew but it develops fairly slowly.

 

I had this problem, first time ever ???