Den. Miva Abracadabra Cane -- Remove?

[c123anderson]

Okay, first, I'm surprised I've not been banned. I'm sure that more than a few are wondering if I should ever have orchids.....to be honest, most are doing well, and seem to be surviving the mealybugs. But .....

I have a Den. Miva Abracadabra (Den. atroviolaceum x Den. polysema). The first picture is the issue, today. The second, cropped picture is the same issue over a month ago, and shortly after I received the plant. It's actually a nice looking plant, but it looks like it has a hole in one of its canes. Watching this plant with the mealybugs, I have had a close eye on this issue that I had hoped was just a physical, non-pest damage (e.g., shipping). Note, too, this plant arrived with black spots on the leaves. Without seeing anything more at the time, I treated with a copper-based fungicide, which seemed to help.

I'm watching this blight. It's not changed character, but I'm afraid it's a very obvious weak spot on this plant.

Questions:
1) any thoughts on what the spot is?
2) should I remove the cane, which, admittedly, is pretty healthy otherwise?
3) if I leave the cane, is there a poultice or something I could/should apply to protect/strengthen this area?

I'm inclined to leave the cane and watch the spot, but I do not want this to be a vector for pests to attack the plant. It's got a couple of new canes sprouting, and it looks like it's even got a nice spike forming.