Turnips failure - v odd

My daughter planted a row of turnips and only the left-hand 50% have come through to show some early leaf growth - the rest, nothing at all.
They don't use weedkillers so nothing has been applied by them to the surface to prevent germination.
Any ideas what could cause such a weird effect?
--
Brian





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I don't know where you live but Turnips are a cool weather crop usually planted in the fall - here in zone 6.

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Garbodanno wrote:

I get two full plantings in 5b. I've never had problems even during the hottest summers (which around here is lucky to reach 30c).
..
Zone 5b in Canada's Far East.
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Brian Watson wrote:

Have they been covered with a floating row cover? Turnip (and its cousins) are an irresistible spot for flies to lay their eggs. The maggots will then hatch and feast on the roots.
If you're only getting 25% sprout rate then my other thought is that the seeds are no good. Seeds also need to have good drainage but kept moist at the same time. Too much H2O could have rotted the seeds in the ground (which might explain why one side was decimated).
I plant mine in raised beds with a floating row cover tucked into the sides. The row cover can stay on the turnip until they're ready to be picked....removing it only to weed. You can water and fertilize through the fabric. If you're planting in the ground, hill the soil so that excess water/rain will drain away....but don't let it go dry to the point that the soil is light brown and crumbly.
When they do grow, pick them when they're about the size of a baseball/softball. If you leave them too long, they'll get a 'woody' taste to them.
And it's probably not too late to try again. I can sometimes get two plantings in our very short season.
..
Zone 5b in Canada's Far East.
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"Brian Watson" wrote...

I'll take a bet it's Flea Beatle. Very bad this year, despite dusting all brassicas with Derris Dust as soon as the seedlings appear we have still lost half out Turnips and a lot of Radishes with the remainder looking like lace as do our planted out cabbages. If you have never seen it look for tiny pin head sized little shiny black dots that jump if you try to touch them.
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Bob Hobden
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I've given up trying to grow radishes in the garden due to Flea Beetle. I'm lucky to get any before they are trashed. Now I grow radishes in a seed tray of fresh potting compost, keeping the tray on an old table out of reach of the ground. Has worked thus far. Pity I can't use the same technique with turnips.
David.
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Have you tried using Remay? We enjoy root maggots here. Remay kept in place until 4th of July pretty much solves the problem.
Jan
--
Bedouin proverb: If you have no troubles, buy a goat.

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"Jan Flora" wrote.after..

What is Remay? Is it what we call "Enviromesh"? http://www.lbsgardenwarehouse.co.uk/product.asp?pf_id=R-HA&name=Enviromesh&sfile=1&jump=0
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Bob Hobden wrote:

http://www.lbsgardenwarehouse.co.uk/product.asp?pf_id=R-HA&name=Enviromesh&sfile=1&jump=0
LOL. And we call it Floating Row Cover.
..
Zone 5b in Canada's Far East.
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Thanks for all responses.
We are going to try reseeding the affected part of the row and see if the phenomenon recurs.
--
Brian



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