Japanese Knotweed x Russian Vine
 

Someone was expressing fear of Russian Vine hybridising with Japanese
Knotweed.

It does.

Fide Stace, most seed produced by Fallopia japonica in the UK is hybrid,
with either Fallopia sakhalinensis or Fallopia baldschuanica as the
pollen parent.

(Fallopia japonica spreads vegetatively; most plants in the UK are
octoploid females, so in the absence of males hybrid seed is produced
instead.)

Although seed of Fallopia japonica x baldschuanica is viable only one
hybrid has been recorded in the wild.
--
Stewart Robert Hinsley

Japanese Knotweed x Russian Vine
 

On Tue, 14 Oct 2008 11:46:46 +0100, Stewart Robert Hinsley
wrote:

Someone was expressing fear of Russian Vine hybridising with Japanese
Knotweed.

It does.

Fide Stace, most seed produced by Fallopia japonica in the UK is hybrid,
with either Fallopia sakhalinensis or Fallopia baldschuanica as the
pollen parent.

(Fallopia japonica spreads vegetatively; most plants in the UK are
octoploid females, so in the absence of males hybrid seed is produced
instead.)

Although seed of Fallopia japonica x baldschuanica is viable only one
hybrid has been recorded in the wild.


Can they not turn it into anything useful?
--
http://www.freedeliveryuk.co.uk
http://www.holidayunder100.co.uk

Japanese Knotweed x Russian Vine
 

In article , Stewart Robert Hinsley
writes
Someone was expressing fear of Russian Vine hybridising with Japanese
Knotweed.

It does.

That insect they are introducing sounds a bit scary if it can suck the
life out of JK!
Where will it go once it has finished off the clumps of JK? Not onto my
tomatoes I hope!

--
Janet Tweedy
Dalmatian Telegraph
http://www.lancedal.demon.co.uk

Japanese Knotweed x Russian Vine
 

On Wed, 15 Oct 2008 11:55:11 +0100, Janet Tweedy
wrote:

In article , Stewart Robert Hinsley
writes
Someone was expressing fear of Russian Vine hybridising with Japanese
Knotweed.

It does.

That insect they are introducing sounds a bit scary if it can suck the
life out of JK!
Where will it go once it has finished off the clumps of JK? Not onto my
tomatoes I hope!

They haven't said if anything eats the bugs - you have to hope
something does that's already here otherwise it'll be like that old
lady song...
--
http://www.freedeliveryuk.co.uk
http://www.holidayunder100.co.uk

Japanese Knotweed x Russian Vine
 

In article ,
mogga wrote:

They haven't said if anything eats the bugs - you have to hope
something does that's already here otherwise it'll be like that old
lady song...

Sigh. This is the Nth posting that has said this, and it is utterly
and completely wrong. The point is that there is a massive difference
between organisms which are highly dependent on a restricted food and
ones that can eat most things.

When the former, whether plant, animal, fungus or other, run out of
food source, they starve and their numbers drop. The population is
thus self-limiting. That does not apply to the latter.

The only risk with such 'predators' is that they will switch to
another food, and that is PRECISELY what the scientists have been
investigating.


Regards,
Nick Maclaren.