nettie
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Why did my brassicas die?My seedlings have one by one all conked out - they are in modules, each started to grow their second pair of leaves, then shrivelled up and died. They are in a well ventilated unheated greenhouse, and have been checked on twice a day.
Have they just cooked themselves in the warm weather, do you think? None of my other seedlings are affected, just the brassicas.
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cab
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Damping off, maybe? Happens sometimes, especially indoors.
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Home on the Hill
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Yeah, I agree with Cab. Did you water them with water from the tap or from a butt? Water from a butt can carry 'damping off' causing baddies.
Still, not too late to start again 
Carrie
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alice
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Does anyone still use Cheshunt Compound? I used to use it when I did a lot of sowing under glass - don't seem to hear it mentioned much nowadays....
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James
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I've got some stashed away somwhere. I bought it for some lilly seeds which sprouted rather randomly over many months (and years).
Cant say I use it for anything else. Its that nasty ammonia smell and copper sulphate blue that puts me off- its all far too much like real chemicals.
As it happend, all the lilly seeds that I treated with TLC died. I gave up two yeast ago and dumped the soil into the greenhouse bed. This spring, while cleaning up, I came apon two little lilly plants. They're now about 8 inches tall and a foot tall. Only about another 3 years until they flower...
I cant even remember what sort of lilly it was now.
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Slim
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Sounds like damping off to me too. Have you noticed a little brown section on any of the stems near the soil line? You could try upping the coir/peat/sand in your potting mix. Water in the morning letting the sun & good ventilation dry off the plants and the surface of the soil, or try watering from the bottom up (put seedling trays in a pan of water for a couple minutes)
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nettie
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Funnily there is no sign of anything on the stems, and they are still upright - the leaves are just going brown and shrivelling.
Do brassicas dislike being transplanted? Perhaps I did it too soon. (They are being watered with tap water btw).
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Slim
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brassicas usually tolerate transplanting pretty well. Sounds like it might be more of an issue of getting water to dry sunburnt leaves... maybe try to give them a day or so in a shaded spot after transplanting?
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cab
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Does sound like damping off still. Best advice I have is that this is way less of an issue if you can get them out in sunlight.
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cab
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| Slim wrote: | | brassicas usually tolerate transplanting pretty well. Sounds like it might be more of an issue of getting water to dry sunburnt leaves... maybe try to give them a day or so in a shaded spot after transplanting? |
Exactly the opposite of the advice I gave 
I've lost more brassica seedlings due to this sort of non-distincty withering/damping off you get when they're young than any other cause. Seems to me that a good drenching of the roots and leaving them in the Spring sunshine helps.
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nettie
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OK I have re-sown! Will keep some indoors and some out and see what happens, I should be covered that way. Thanks all
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Slim
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| cab wrote: | | Slim wrote: | | brassicas usually tolerate transplanting pretty well. Sounds like it might be more of an issue of getting water to dry sunburnt leaves... maybe try to give them a day or so in a shaded spot after transplanting? |
Exactly the opposite of the advice I gave
I've lost more brassica seedlings due to this sort of non-distincty withering/damping off you get when they're young than any other cause. Seems to me that a good drenching of the roots and leaving them in the Spring sunshine helps. |
Conflicting advice, that's what we're here for! 
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