"La Puce" wrote in message
ups.com...

grimmjimm wrote:
My soil has a high clay content, The problem i have is Horsetail
this
grows everywhere i have tried digging it up but it always seems to
come
back. Does anybody know of a suitable weed killer that really does
work
on this plant.
I has started to take my garden over. Any help would be
appleciated.

It comes back because you've left bits of it in the ground. Make
sure
you remove the whole plant out. The root is single and long, easy to
dig out really. I find it easier to dig it out after the rain. I
don't
use weed killers so wouldn't know what to use to kill it off. But
I've
heard there's nothing really. ...........

:-))
Well, I've said it before and I'll say it again.
Roundup mixed with washing up detergent, spot sprayed on the plant
will cause the plant to die back but do not remove the apparently dead
stems until they are brittle and can be brushed away.
A second application on any regrowth may be needed, but,
in my experience (!!!)
it works.
Spores will only come from fertile coning heads. Picture of a fertile
cone at
http://www.bugsandweeds.co.uk/plants.html#EquiSet
The cones should be nipped off before they open. Fortunately the
fertile cones are in the minority and are the first to appear in
spring. In my neck of the woods, their season is just about over now -
so you have a whole season to devote to the treatment - whatever you
choose, of the infertile green stems.

It is not a lost cause.
You will prevail. :-)

--
ned
http://www.bugsandweeds.co.uk