NB. I'm we are not great gardeners!
Please be gentle with us! Have googled
but have been unable to find an answer...

We erected some trellis panels last
year and every thing that touched
them wilted and turned black. We
had put some clematis, in pots,
largish ones at the bottom and they
started to grow quite nicely, up the
bamboo in the pots.

When they started to climb the trellis,
the leaves wilted and turned black.
Interestingly we had (very artistically:-)
intertwined some small branches, that
we had from a pruning exercise, into
the trellis. The leaves of the clematis
on the branches were just fine. This is
what alerted us to the problem.

Also adjacent to the new trellis we
have a very large, healthy clematis.
When it started to climb the trellis we
got the same effect. Withering leaves etc...

Is this perhaps something to do with
the treatment on the trellis? We bought
them probably about 3/4 years ago,
already treated. Have I got to just chop 'em
up for firewood? Or is there something
I don't know about clematis and trellis?

Many thanks,
Roy