"Paul Luton" wrote
The top leaves on my greenhouse tomatoes are looking a bit shrivelled.
The nearest match that I could find on the net was glyphosphate poisoning
and I was using that on some bindweed outside the greenhouse. Do I just
leave and hope that they will grow out of it ? (at least the bindweed is
looking poorly too )

Could be sun scorch. Is you greenhouse shaded?

--
Regards
Bob Hobden