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#1
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Damping Off - Help Please, please, please
Bugger, bugger, bugger........ I have in previous years lost some tomatoes to damping off - despite, as I thought being meticulous re hygiene in my greenhouse and using cheshunt compound Last year I kept them all in the house on window sill until ready for potting on to 3 inch pots - all fine. This year: Washed plug tray, seed tray, seed tray cover all in disinfectant and washing up liquid. Bought new seed potting compost. Soaked compost well with Cheshunt compound Planted my 42 seeds and put them on windows sill in bedroom - two weeks ago. Bottom watered with Cheshunt compound Only sixteen seeds through - tallest about an inch. Thought I'll speed up germination and use the heated sand bed in the greenhouse - so moved everything in to greenhouse. This morning - 14 of them all with damping off - gone, finished, done!! I am very sure that it is damping off. So the point is - what more can I do - does the greenhouse itself need a good Jeyes Fluiding or something. Is the damping off "spores"/bacteria or whatever in the green house and air-born? Or - despite my certainty - could it be something other than damping off?? For now I am repeating last year - starting again - and keeping in the house until ready to pot on. Did I say : bugger, bugger, bugger |
#2
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Damping Off - Help Please, please, please
"Judith Smith" wrote Bugger, bugger, bugger........ I have in previous years lost some tomatoes to damping off - despite, as I thought being meticulous re hygiene in my greenhouse and using cheshunt compound Last year I kept them all in the house on window sill until ready for potting on to 3 inch pots - all fine. This year: Washed plug tray, seed tray, seed tray cover all in disinfectant and washing up liquid. Bought new seed potting compost. Soaked compost well with Cheshunt compound Planted my 42 seeds and put them on windows sill in bedroom - two weeks ago. Bottom watered with Cheshunt compound Only sixteen seeds through - tallest about an inch. Thought I'll speed up germination and use the heated sand bed in the greenhouse - so moved everything in to greenhouse. This morning - 14 of them all with damping off - gone, finished, done!! I am very sure that it is damping off. So the point is - what more can I do - does the greenhouse itself need a good Jeyes Fluiding or something. Is the damping off "spores"/bacteria or whatever in the green house and air-born? Or - despite my certainty - could it be something other than damping off?? For now I am repeating last year - starting again - and keeping in the house until ready to pot on. Perhaps you are keeping them too wet, or too cold and wet (humid). Normally once I've sowed my seeds and put them in the heated propagator in my heated greenhouse (min 50°F) they don't need watering again until they are up and growing and then only to keep the compost just moist. I raise the trays up off the bottom of the propagator so they don't stay wet from condensation. Alternatively, what sort of compost are you using? I had a lot of trouble once with a peat free compost (New Horizons) and cured it by going back to a peat based compost (Levingtons). -- Regards Bob Hobden |
#3
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Damping Off - Help Please, please, please
On Sat, 28 Mar 2009 11:33:50 -0000, "Bob Hobden"
wrote: snip Alternatively, what sort of compost are you using? I had a lot of trouble once with a peat free compost (New Horizons) and cured it by going back to a peat based compost (Levingtons). B&Q John Innes Seed Compost - this is the first year I have used it. |
#4
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Damping Off - Help Please, please, please
Judith Smith wrote: On Sat, 28 Mar 2009 11:33:50 -0000, "Bob Hobden" wrote: snip Alternatively, what sort of compost are you using? I had a lot of trouble once with a peat free compost (New Horizons) and cured it by going back to a peat based compost (Levingtons). B&Q John Innes Seed Compost - this is the first year I have used it. I never have probs.........green fingers? 30/32, one inch high in one week. Used JI potting compost, unheated propogator on chest of draws in bedroom. Watered once mid week. They were free seeds from magazines....Golden Pearl, and Moneymaker. -- Pete C London UK |
#5
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Damping Off - Help Please, please, please
Bob Hobden wrote:
Alternatively, what sort of compost are you using? I had a lot of trouble once with a peat free compost (New Horizons) and cured it by going back to a peat based compost (Levingtons). I confess to using peat based compost for seed sowing. After that the New Horizon stuff is fine for growing on. Paul. -- CTC Right to Ride Rep. for Richmond upon Thames |
#6
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Damping Off - Help Please, please, please
On Mar 28, 11:16*am, Judith Smith wrote:
Bugger, bugger, bugger........ Did I say : bugger, bugger, bugger Now, therein lies your problem. Tomato seedlings are very sensitive and can't stand bad language! |
#7
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Damping Off - Help Please, please, please
The message
from moghouse contains these words: On Mar 28, 11:16*am, Judith Smith wrote: Bugger, bugger, bugger........ Did I say : bugger, bugger, bugger Now, therein lies your problem. Tomato seedlings are very sensitive and can't stand bad language! If you call them 'tomato' rather than 'tomato', they don't notice, unless they're first generation immigrants. -- Rusty Growing old is mandatory; growing up is optional. Direct reply to: horrid dot squeak snailything zetnet point co period uk |
#8
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Damping Off - Help Please, please, please
On Mar 28, 11:16*am, Judith Smith wrote:
Bugger, bugger, bugger........ I have in previous years lost some tomatoes to damping off - despite, as I thought *being meticulous re hygiene in my greenhouse and using cheshunt compound Last year I kept them all in the house on window sill until ready for potting on to 3 inch pots - all fine. This year: Washed plug tray, seed tray, seed tray cover all in disinfectant and washing up liquid. Bought new seed potting compost. Soaked compost well with Cheshunt compound Planted my 42 seeds and put them on windows sill in bedroom - two weeks ago. Bottom watered with Cheshunt compound Only sixteen seeds through - tallest about an inch. Thought *I'll speed up germination and use the heated sand bed in the greenhouse - so moved everything in to greenhouse. This morning - 14 of them all with damping off - gone, finished, done!! I am very sure that it is damping off. So the point is - what more can I do - does the greenhouse itself need a good Jeyes Fluiding or something. Is the damping off "spores"/bacteria or whatever in the green house and air-born? Or - despite my certainty - could it be something other than damping off?? For now I am repeating last year - starting again *- *and keeping in the *house until ready to pot on. Did I say : bugger, bugger, bugger Poor Judith, scrap them and start again there is plenty of time. Keep them a bit on the dry side. It could be that it was too humid in the greenhouse and add that to a wet compost and you have excellent conditions for damping off? Good luck with the next lot. Judith |
#9
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Damping Off - Help Please, please, please
On Mar 28, 3:30*pm, "Pete C" wrote:
Judith Smith wrote: On Sat, 28 Mar 2009 11:33:50 -0000, "Bob Hobden" wrote: snip Alternatively, what sort of compost are you using? I had a lot of trouble once with a peat free compost (New Horizons) and cured it by going back to a peat based compost (Levingtons). B&Q John Innes Seed Compost - this is the first year I have used it. I never have probs.........green fingers? 30/32, one inch high in one week. Used JI potting compost, unheated propogator on chest of draws in bedroom. Watered once mid week. They were free seeds from magazines....Golden Pearl, and Moneymaker. -- Pete C London UK I have a problem with seed compost here, it is really too heavy does anyone know of something else that I could use to improve the French seed compost, it's not fine enough. I tried making my own last year by sieving earth and a synthetic mixture, I ended up with a lot of weeds amongst the growing seeds. Judith |
#10
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Damping Off - Help Please, please, please
On Mar 28, 7:46*pm, Judith in France
wrote: I have a problem with seed compost here, it is really too heavy does anyone know of something else that I could use to improve the French seed compost, it's not fine enough. *I tried making my own last year by sieving earth and a synthetic mixture, I ended up with a lot of weeds amongst the growing seeds. Sieve your earth and then, when you have finished baking, turn off the oven and stick the earth in for an hour in an old metal baking tray.That will take care of most of the weed seeds. You might care to leave the extractor fan running as the aroma does not please everybody. |
#11
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Damping Off - Help Please, please, please
On Mar 28, 8:57*pm, moghouse wrote:
On Mar 28, 7:46*pm, Judith in France wrote: I have a problem with seed compost here, it is really too heavy does anyone know of something else that I could use to improve the French seed compost, it's not fine enough. *I tried making my own last year by sieving earth and a synthetic mixture, I ended up with a lot of weeds amongst the growing seeds. Sieve your earth and then, when you have finished baking, turn off the oven and stick the earth in for an hour in an old metal baking tray.That will take care of most of the weed seeds. You might care to leave the extractor fan running as the aroma does not please everybody. Good tip, thanks. Judith |
#12
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Damping Off - Help Please, please, please
On Sat, 28 Mar 2009 15:30:33 -0000, "Pete C"
wrote: Judith Smith wrote: On Sat, 28 Mar 2009 11:33:50 -0000, "Bob Hobden" wrote: snip Alternatively, what sort of compost are you using? I had a lot of trouble once with a peat free compost (New Horizons) and cured it by going back to a peat based compost (Levingtons). B&Q John Innes Seed Compost - this is the first year I have used it. I never have probs.........green fingers? 30/32, one inch high in one week. Used JI potting compost, unheated propogator on chest of draws in bedroom. Watered once mid week. They were free seeds from magazines....Golden Pearl, and Moneymaker. Yes - that is more or less what I did last year - bedroom window sill until pot on time. They seem to be susceptible to the problem when in the green house. That's why I wondered if the fungus is already there - but not in my bedroom :-) |
#13
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Damping Off - Help Please, please, please
Bob Hobden writes
Perhaps you are keeping them too wet, or too cold and wet (humid). Normally once I've sowed my seeds and put them in the heated propagator in my heated greenhouse (min 50°F) they don't need watering again until they are up and growing and then only to keep the compost just moist. I raise the trays up off the bottom of the propagator so they don't stay wet from condensation. Alternatively, what sort of compost are you using? I had a lot of trouble once with a peat free compost (New Horizons) and cured it by going back to a peat based compost (Levingtons). -- I don't have any trouble with damping off using New Horizon despite not being in the least bit meticulous, so doubt it's that. Peat free composts are said to have improved immensely over the last few years. -- Kay |
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