I have a bed of english ivy that used to be quite dense and
luxuriant. Over the last few years it has become sparser, and many
weeds are intruding. Can anyone suggest what I might do about that?

The ivy bed is under a couple of oak trees. For 15 or 20 years it has
been able to swallow up all the leaves each fall with no apparent ill
effects. It is in shade most of the day, gets some tree-filtered sun
in the afternoons.

Thanks for any suggestions...

Stowe Davison
http://nic-nac-project.de/~davison/