In article ,
Bob Hobden wrote:

How are they grown : don't they have to bother about carrot root fly?

Fleece.

Whenever we have tried to use fleece over carrots we get nil
germination. We use an old water tank so they are well above the
ground (the fly are lazy) which also allows us to use sandy open
compost which carrots like.

My point stands; that's what they use. You don't need to put the
fleece on until after the seedlings appear, though I don't find it
makes any difference. Of course, that's on sandy soil in Cambridge,
and it may be a damping-off issue. I find carrot germination is
always unreliable.


Regards,
Nick Maclaren.