In article ,
Peter Robinson wrote:
john west wrote:

At our allotment there seems to be some confusion over what to do with
the woody stems of potato plants when they are finished with.

I have read that blight does not persist in compost or soil -
overwintering on live material and coming in on the wind.

That is correct. It needs two varieties to produce durable spores,
and only one is found (or used to be) in the UK. As it overwinters
in a wide variety of plants (including common weeds), it is best
regarded as spread by miasma during Snith etc. periods. Composting
is (or used to be) safe.


Regards,
Nick Maclaren.