Posted: 29/11/2014 at 08:39
Not sure carrot flies have read,the script. So 70 cm, 80 cm or 90cm?
I have pretty good conditions for growing carrots...sandy loam......and always use onions and spring onions as companion planting. By the way, parsley too gets carrot fly so same cultural requirements. My veg patch has a mixed low evergreen hedge to one side, a lavendar hedge on another, and runner bean framework to another. Also enough taller growing plants to,,in theory, deny the carrot fly. however, I need to apply fleece to effectively deny carrot fly.
pests will get access one way or another such is their instinct to feed, breed and survive.