Originally Posted by Steve Harris

My vegetable plot is totally enclosed by walls/fences 6' high. I've just
lifted a trial crop of carrots which are completely clean. No
precautions were taken against Fly. I'm encouraged!

Is this just luck or have the walls/fences done the job of keeping out
the low flying pest?

Thanks!

Steve Harris - Cheltenham - Real address steve AT netservs DOT com
A useful bit of gardening software at http://www.netservs.com/garden/