[Plot74]

Correct me if I am wrong.
I am sure I read that if you plant a row of carrots among your onions the carrot fly will not touch them.
At the moment I am checking what plants go to get her and what should be kept apart.
Theirs a lot more to growing good veg than just putting it in the ground.
John

[Growster...]

The jury is continually out on this one I'm afraid, Plot!

The story is that onion fly doesn't like carrot smell, and carrot fly doesn't like onions...

If you search this site, you'll find several answers, but I agree with you that companion planting is worth considering, like putting marigolds near toms etc!

[DD.]

I know people on our site who have tried and failed.

The only sure way against carrot fly is by totally covering.

[arugula]

I've also read that plants whose crops taste good together, such as tomatoes and basil work well alongside each other..

To add, if you look at lists such as this one, it would appear to be true.

[DrGreenthumb]

i thought that it was marigolds that the carrot and onion fly couldnt stand  we always put marigolds near both and have never had a problem with fly of either type, maybe we were just lucky? 

[Growster...]

i thought that it was marigolds that the carrot and onion fly couldnt stand  we always put marigolds near both and have never had a problem with fly of either type, maybe we were just lucky? 

That's what its all about Dr!

One thing this year - totally different next year!

[devonbarmygardener]

I always try to companion plant.

If you plant nasturtiums or poached egg plants around beans, the blackfly tends to go for the flowered plants - maybe they are tastier.

Always plant marigolds near brassicas and in the greenhouse with the toms - the whitefly doesn't like them.

[Growster...]

I always try to companion plant.

If you plant nasturtiums or poached egg plants around beans, the blackfly tends to go for the flowered plants - maybe they are tastier.

Always plant marigolds near brassicas and in the greenhouse with the toms - the whitefly doesn't like them.

Certainly true for the greenhouse Devon!

And they (marigplds) get watered and fed, and grow to quite a sizeable flower as well!

[compostqueen]

I enviromesh my carrots but I do mix them with onions, rocket, nigella etc etc  because I like to see it as well as hoping it will deter carrot fly 

My best ever fly-free carrots were grown without soil. I only used home made garden compost mixed with some builders grit sand.

[Growster...]

In pots CQ?

Sounds a pretty good idea to me!

[Yorkie]

The one companion planting combo which is advised against, is beans and onions.  Apparently the roots of one inhibit the growth of t'other.

[Matt31]

Either a fleece or enviromesh wrapped around peices of bamboo as sort of fence posts around my carrot plot, around 18" high and the bottom part buried in the soil has worked for me for the last 3 years without a single sign of a carrot fly.

From what i have read carrot fly can only fly close to the ground so a fence seems to be ideal.

Matt

[Yorkie]

Either a fleece or enviromesh wrapped around peices of bamboo as sort of fence posts around my carrot plot, around 18" high and the bottom part buried in the soil has worked for me for the last 3 years without a single sign of a carrot fly.

From what i have read carrot fly can only fly close to the ground so a fence seems to be ideal.

Matt

They can only fly up to 24" from the ground - but that doesn't stop them gliding on a breeze ...

[devonbarmygardener]

I always try to companion plant.

If you plant nasturtiums or poached egg plants around beans, the blackfly tends to go for the flowered plants - maybe they are tastier.

Always plant marigolds near brassicas and in the greenhouse with the toms - the whitefly doesn't like them.

Certainly true for the greenhouse Devon!

And they (marigplds) get watered and fed, and grow to quite a sizeable flower as well!

They do indeedy.
had a stunning show in the greenhouse last year

[Madame Cholet]

i'm trying carrots mixed with nigella and corn flowers the flower scent is supoesed to mask the carrot smell according to Joy Larkhom. it'll look pretty anyway.