On Jul 21, 5:36*pm, Baz wrote:
I have had the dreaded fly from year 1 of my venture into growing veg, year
2 was the same and it nearly put me off growing the things.
Year 3(last year) I made a timber frame and covered it with pvc around, not
the top as water will not get through. I had no fly and someone here
suggested that it might be because the fly and its larvae died during
winter. I tested this year. I sowed seeds in the frame and a few in open
ground.

The carrots in the frame are perfect whereas the ones in open ground are
riddled with the thing.

To me this is case proven though when I first heard of the barrier method I
was very sceptical.(Isuppose some wiseass is going to make a joke about
barrier method)

It's a faff and expensive making the frame but a carrot fresh out of the
ground is something to write home about, and the frame will last a few
years?

Baz *

You might try sowing very thinly and not thinning the seedlings.
The theory is that the smell when you pull them up attracts the carrot
flies. Seems to work for me.