I thought I had already posted this but I can't find my previous post. So here goes...

I've had this Phal for about 4 years and it is just now blooming again since the first time. I discovered scale on it and removed all that I could see. Is this leaf problem associated with the scale infestation or is it a warning of bigger problems?

The leaf shown has the most of these and only 1 or 2 other leaves show a small patch of this stuff. It is not sticky to the touch, it is hard and lumpy feeling. It does not ooze or anything when penetrated.

{{gwi:148087}}