"David Hill" wrote in message
...
On 17/05/2013 12:14, andy stone wrote:
Having scraped off a lot of top soil from plant pots to get rid of the
liver
wort, i would like to use this soil again in the bottom of some big pots.

Providing I cover this soil with a couple of centimeters of compost will
it
all die off, since it will be deprived of light ?


Are you sure you are talking of a pot and not a tray?
You intend putting it in the bottom of the pot but will only have a couple
of centimetres of compost over it?
I would have thought that with about 20 cm of compost between it and the
surface you should be OK, but remember the spores will remain and when the
compost again comes out of the pot it may well start again.
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not 20 cm but 2 cm. its to go into a pot with a thin layer of compost to
shut off the light.