Tropicals & Tender Perennials: Possible Hoya macgillivrayi Problem - Any Ideas?, 1 by Hoya_24

Hoya_24 wrote:
Here is a picture of one of the leaves. It is not all that affected yet, but there is some pitting and the start of the dust. I should have taken a picture of the two leaves that I just lost. I didn't do it, because I was hoping the problem would just go away. The leaves become extremely red and the outer side edges will begin curling toward each other, but usually before that happens there is the white patches of waxy stuff. The leaves that I just lost were about two inches long, but the white stuff can appear when the leave are 3/4 of an inch long.