Rampant Cabbage Root Fly

For the first time in years my entire brassica crop has been hit, went down last night and all of them wilted in that gut wenching way, pulled a couple up and they were full of maggot, looks like a mass collar making day today for the next lot which is due to go in.
Is this going to be one fo those years I wonder


Title edited by Aunty so that newbies know what CRF is.

Soul destroying Aid

Cabbage Root Fly - I've changed the title for all the new gardeners.

they look like this

http://www.crocus.co.uk/product/_/kitchen-garden-tools/kitchengarden/fertilisers-pest-control/brassica-collars/classid.2000011993/

but you can make your own out of old lino, roofing felt or even cardboard 

I’ve had a couple of kohl rabi plants attacked in the past few days. They were coming on nicely too! I spent a few minutes squishing every maggot I could find then took the small kohls home and added them to a salad for tea so not as bad as it could have been.

Thanks for that mumofstig & Aidy....*adding some notes to my allotment file* 

I've had my radish attacked by the same maggot. I hope it won't search for my parsnips and onions which are in the same bed. Just ordered some Grow Your Own from Nemersys to kill them off. x

your parsnips and onions are safe from the cabbage root fly, but the carrot fly and the onion fly and the alium leaf miner will probably eat them..