So, over the years I've had a couple of mature plants that start dropping leaves like mad from the original/mother growth. The basal keikis continue to grow and don't have the problem. In fact, if/when the mother plant has died back, the keikis just continue on and eventually you have a bush. Case in point, here is an Angcm Veitchii. The plant has two large keikis--both have bloomed. The mother plant looked fine 3 weeks ago, but since then has lost nearly a dozen leaves. This plant is sitting with a bunch of other big angraecums, and they are all just fine. I should probably know the answer to this -- but is it normal for the mother plant to die back. (And quickly?) Or is this some disease that I should wipe out immediately? Thoughts?