Cornwall,
United Kingdom 
the stems of my winter onions have gone very black, I have been told that it is called sooty mould ! Can anyone give me anymore info
28 Jul, 2010
Cornwall,
United Kingdom
the stems of my winter onions have gone very black, I have been told that it is called sooty mould ! Can anyone give me anymore info
28 Jul, 2010
If it is smut you should destroy the onions, the best way is to burn them, but you may have neck rot which is often a grey mould which becomes dusty, more likely on onions with a large neck.
28 Jul, 2010