Marigolds

Not sure on carrot fly but it does help with White Fly

Is it right that marigolds help to prevent carrot fly

I think the general opinion is that anything that "helps" prevent Carrot Fly is not enough. You might be lucky and not have many fly about in your area, but if you do even the few that manage to fly over the barrier, or are not deterred by the smell of Marigold / Garlic / Onions ... will do a lot of damage to the crop - and lay their eggs in the soil for a renewed attack next year

If you subscribe to that theory then you need an enviromesh enclosure (which is not open to the sky)

An enclosure probably brings up connotations which are a bit grand.

Either laying the mesh on top (after they are big enough), or draping it over hoops / supports / a wooden cage

Quote from: Kristen on March 11, 2011, 16:03

Quote from: harry on March 11, 2011, 12:34

Is it right that marigolds help to prevent carrot fly

If you subscribe to that theory then you need an enviromesh enclosure (which is not open to the sky)

When you say enclosure, what exactly are we talking, please?

WW  

I meant only that no part was open - i.e. the cover encloses the carrots. It is said that Carrot Fly cannot fly more than 2' high so a barrier (without roof) is enough, but if some get carried on air currents over the barrier then they still do damage.

Maybe brightly-coloured rubber gloves planted amongst the crops would work better 

It wasn't just me then   

Maybe brightly-coloured rubber gloves planted amongst the crops would work better 

Beat me to it!