Thread: John Humphreys
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Old 10-11-2012, 06:56 PM posted to uk.rec.gardening
[email protected] nmm1@cam.ac.uk is offline
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Default John Humphreys

In article ,
Martin wrote:

The only problem I can see is IF they contain Ash leaves and IF those
leaves are infected with die back fungus...................


Not likely to be a problem. The evidence is that it is a wind-borne
disease, and the only ones that matter are soil-borne ones with
durable spores.


It might be a good idea if they stopped importing all plants from
infected areas. Having said that the spores can travel as much as 30
km they now claim they are being blown across the North Sea a distance
of at 200km.


Even if stopping imports had been done in time, it wouldn't have
worked. The distribution is strongly indicative of it being wind-
borne for hundreds of kilometres. Actually, a wind-borne fungus
parasite that is carried only tens of kilometres is implausible,
though the amount carried will drop off rapidly with distance.


Regards,
Nick Maclaren.