Posted by AlexS on April 16, 2007, 3:13 pm
What is this weed?
http://weed.webhop.info
I think it may be Japanese knot weed but am not sure. Will it succumb
to a systemic killer like Glyphose?
--
Alex
Posted by Serena Blanchflower on April 16, 2007, 3:48 pm
* AlexS wrote, On 16/04/2007 20:13:
> What is this weed?
>
> http://weed.webhop.info
>
> I think it may be Japanese knot weed but am not sure. Will it succumb
> to a systemic killer like Glyphose?
<shudder> I think you're right. In my experience, it rather likes
the taste of glyphosphate and thrives on it. I have heard that it
works better if you put it on in the late summer, so that it can take
it down into the roots.
The best technique I found, which needed to be done in conjunction
with my neighbours, was to cut every scrap of it down and keep on
guard so that every shoot that appeared above ground was quickly cut
back. It took a few years but it did get rid of it in the end.
--
Cheers, Serena
We all get heavier as we get older because there's a lot more
information in our heads. (Vlade Divac)
Posted by Bob Hobden on April 16, 2007, 6:26 pm
"AlexS" wrote ...
> What is this weed?
> http://weed.webhop.info
> I think it may be Japanese knot weed but am not sure. Will it succumb
> to a systemic killer like Glyphose?
Yes, it is JKW and the roots can go down 3 metres. One way to kill it off
other that employing a firm with strong chemicals is to use a brushkiller
weedkiller like SBK and to cut each stem as it appears and pour the
weedkiller down each hollow stem. I understand the National Trust is having
some success with this method.
--
Regards
Bob H
17mls W. of London.UK
Posted by Chris Hogg on April 17, 2007, 2:31 pm
wrote:
>"AlexS" wrote ...
>> What is this weed?
>>
>> http://weed.webhop.info
>>
>> I think it may be Japanese knot weed but am not sure. Will it succumb
>> to a systemic killer like Glyphose?
>Yes, it is JKW and the roots can go down 3 metres. One way to kill it off
>other that employing a firm with strong chemicals is to use a brushkiller
>weedkiller like SBK and to cut each stem as it appears and pour the
>weedkiller down each hollow stem. I understand the National Trust is having
>some success with this method.
It's supposed to be most effective if that's done in late summer or
early autumn, because then the top growth is beginning to die back
naturally and the plant is drawing the sap plus nutrients in the
leaves & stem (plus weedkiller of choice if it's there) back down into
the roots. The weedkiller then seriously weakens the roots and if
you're lucky only a little bit comes up next year. Repeat and it's all
gone in a couple of years.
Or so I've been told!
--
Chris
E-mail: christopher[dot]hogg[at]virgin[dot]net
>
> http://weed.webhop.info
>
> I think it may be Japanese knot weed but am not sure. Will it succumb
> to a systemic killer like Glyphose?