Tropicals & Tender Perennials: disease on compacta, 1 by sandy130

sandy130 wrote:
Maybe someone has come across this problem before...i have green compacta with some of the leaves on it getting these black spots sporadically on a couple of the ropes....nothing near the base nor near the ends, basically these spots appear in the middle of the ropes, then finally turning yellow and falling off.. here are 2 pics (front and back) showing a leaf that has already started to turn yellow and has fallen off.....any ideas what the cause is and what i can do to stop it from happening?...i have had this happen on a Krimson princess vine also....

Sandy