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Produce => Edible Plants => Topic started by: BAK on June 16, 2007, 18:16:45

Title: Carrots - an alternative to "high rise" raised beds
Post by: BAK on June 16, 2007, 18:16:45
One alternative approach to beating the carrot fly.

area is 4 feet by 4 feet, enclosed with corrugated plastic sheets which are supported by pairs of canes. Construction is 2 foot 6 inches high (the width of the plastic sheets).

Sowing is in mid-March ... 8 rows squeezed in ...  moderately thick sowing.

Variety in this case is Autumn King.  Start using thinnings in salads from the end of May usually. Picture was taken today (16th June).

Foliage gets to be a bit drawn but it does not appear to affect the quality of the carrots.

Importantly, the construction keeps the carrot fly at bay.
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: asbean on June 16, 2007, 18:25:15
Now that IS a good idea  :) :)
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: saddad on June 16, 2007, 19:02:15
We grow AK in an old cold frame filled with home produced compost...
Have some Samurai and Golden Sweet in as well...
;D
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: Emagggie on June 16, 2007, 23:10:13
Hmmm, another one for me to try ;D I'll get the bloomin' things to grow yet....... ;)
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: Jeannine on June 16, 2007, 23:29:47
Me too in an old cold frame XX
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: cornykev on June 17, 2007, 13:21:09
I've inter planted mine with onions, but when I thinned some today there was tiny white looking eggs I seem to remember having these last year but didn't have a clue then, are these the dreaded carrot fly eggs and what can I do about them . :(    ;D ;D ;D
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: theamatteurgardener on June 17, 2007, 14:21:59
Pardon my ignorance, but how does the construction keep the carrot fly off? Can they only fly low? Cheers!
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: Jeannine on June 17, 2007, 15:15:01
Yep, difference of opinion as to just how high but 15-18 inches is about  what most of us think
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: lorna on June 17, 2007, 15:58:49
I didn't know anything about carrot fly I built my beds to save my back ;D So hopefully they will serve 2 purposes.
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: tomatoada on June 17, 2007, 20:48:46
Where can you buy the corrugated sheeting?   How big is it please?
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: asbean on June 17, 2007, 21:11:07
I got mine from B&Q, they are quite pricey and I use them in the winter as tunnels for the winter salads.  But this is a good use for them in the summer  :) :)
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: telboy on June 17, 2007, 21:40:21
Well done BAK!
Another good idea.
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: BAK on June 17, 2007, 22:19:46
Tomatoada,

they are simply bog standard pieces of corrugated plastic that can be obtained in lots of places. Mine came from Focus Do It All.

Size are 4 feet by 2 feet 6 inches although they come in various sizes.

As per Asbean, I also use them as cloches (folded into semi-circular shape and held in place with link stakes.

My last set lasted about 15 years (or so).
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: newbies on June 18, 2007, 11:56:25
I put my carrots in black buckets this year, and they started off well enough.  I did this because I have a new plot, and not yet done a bed for carrots.  Some b*****d critters have eaten the lot, slugs I suppose.  Now I'll have to start again.  Do carrot fly eat the foliage, or will this be our slippery friends? ???
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: BAK on June 18, 2007, 12:09:33
It will probably be your slippery friends.

Carrot fly simply lays its eggs at the base of the plant. Maggots, when they hatch, burrow down and eat the root.
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: newbies on June 18, 2007, 12:25:02
How about if I do a high bed, the buckets are only a foot tall.  Then, if the slugs do get in through the bottom of the bed, they will have to climb for ages to get to the seedlings.  Last year, I had carrots in an old plastic compost bin, and hardly a problem.. I put broken pots in the bottom, to save on compost, maybe they got lost in all the crockery, and never made it any further?  Hmm..I feel a plan coming on...
So, I need a big tub or bucket, that then I can put drainage holes in, crockery in the bottom, and start my carrots again.  This will theoretically deter both slugs and carrot fly.  Seems like a plan, opinions please!!
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: telboy on June 18, 2007, 14:30:40
Newbies,
Could your problem be pidgeons?
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: tomatoada on June 18, 2007, 14:53:07
Thanks BAC.  Found them at B&Q  £11.98.  Will invest in some unless I find them cheaper elswhere.
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: Cat on June 18, 2007, 16:42:35
I have just harvested my first ever container grown carrots and they are fab!  Lovely, lush green growth and baby Nantes carrots.  My containers were covered in fleece and no sign of carrot fly yey!

Cat
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: newbies on June 18, 2007, 18:14:55
Telboy,
Never thought of pigeons!!
I now have a many pronged attack, cover with fleece as well, and get the pigeons.

Thanks very much, how can I have been so shortsighted?  Not eaten enough carrots obviously!

Cheers
Linda
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: cornykev on June 18, 2007, 21:01:57
I just harvested some finger size carrots for the last few days, some, not all have these eggs you talk about Bak, how do I get rid of them. ?  ??? :-\ :'( :( ;D ;D ;D
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: BAK on June 19, 2007, 06:41:05
Cornkey,

sorry but I am not aware that there is anything that you can do at this stage.

Not too late to sow more now, using one of the touted methods of protection:

* fleece (enviromesh)
* the high-rise approach, ie grow at least 18 inches above ground level
* a barrier similar to mine at the beginning of this thread.
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: growmore on June 19, 2007, 09:46:54
Tomaoado these are what we use ...
Corrugated PVCu Sheeting 1.83 x 0.66M Mini Trans about £4-90 each from screwfix.
In old measurments roughly 6ftx2ft2 .cheers Jim


Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: tim on June 19, 2007, 11:31:51
This is not meant as a 'knock' but, if you don't get the fly, it does not mean that you've won.

And why not a wisp of fleece rather than a new building?
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: Chris Graham on June 19, 2007, 12:06:59
What about the free black buckets?

I shall probably only use this method instead of the plot as carrot fly cant get to them and so far the results have been excellent!

These are Early Nantes but any type would work well.

No covering at all but the plot ones have enviromesh

(http://backyard.8m.net/garden%20veg/18.06.07/281_8154.JPG)

(http://backyard.8m.net/garden%20veg/09.06.07/280_8074.JPG)
Title: Re: Carrots - an alternative to "high rise" raised beds
Post by: jonny211 on June 19, 2007, 13:30:48
Quote from: cornykev on June 18, 2007, 21:01:57
I just harvested some finger size carrots for the last few days, some, not all have these eggs you talk about Bak, how do I get rid of them. ?  ??? :-\ :'( :( ;D ;D ;D

I think I read on here that ypu could get rid of monsters on brassica roots by making a water/rhubarb leave mixture and then pour it close to the base of the plants. I'm guessing that the oxalic acid in the rhubarb leaves would kill any maggots? As i said I only thought I read this.... so take it with a pinch of salt.

Incidenatlly the interweb says it would take 5kg of rhubarb leaves (to be eaten in one stting) to kill a human!

Jon