The message
from Jonathan Campbell contains these words:
Bob Minchin wrote:

I've got a well established ivy problem growing up in a narrow crack
between two areas of concrete on my garden boundary - about 30 foot
length of the stuff. Digging up the concrete is not an option so I'm
looking for the most effect chemical warfare to apply for a permanent
solution. There is nothing growing nearby for many feet nor do we want
to grow anything there in the near future.
Stems are 2-3cm diameter so I could drill holes in and feed a chemical
in perhaps?
Any suggestions please?

I haven't an exact picture of your situation, but that doesn't matter.

Can you cut the main trunk(s) somewhere; as close to the ground as
possible. Apply undiluted glyphosate (Roundup) to the lower cut (I'm
finding it hard to get the correct terminology) using a paintbrush or
dab it on with a sponge or cloth. If you cannot get undiluted glyphosate
(try agricultural suppliers), then maybe someone can suggest an
alternative like a brushwood killer.

I really can't see what glyphosate would achieve - it's only absorbed by
foliage and the green parts of plants AFAIK.

Sodium chlorate solution would do the job, but trickled-in round the
roots. (Not too much, in case it leaches out to anywhere else fairly
close (like the other side of a fence/wall)

It is available though now has a fire-inhibitor with it. (Boo! Hiss!)

--
Rusty
Growing old is mandatory; growing up is optional.
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