I haven't had it affect one of my plants, but I recently bought a variegated masoniana that had that leaf spot on one leaf and it so rapidly took over the whole leaf it was phenomenal! I also didn't realize the rot was in the core of the plant and within days all the remaining leaves rotted off! Disgraceful!

Lori, that's terrible!! I hope new leaves grow from the rhizomes. Are you going to treat the potting mix with anything? Or treat the rhizome, sterilize the pot and start over with new potting mix? Thanks for sharing your experience.

The rhizome was completely gone and three of the four remaining leaves I had to cut off 1/4 of it. I put them in dry, dry soil and haven't watered them at all. I doubt they will root. I read somewhere variegated Sans don't root. Not sure about that. The fourth leaf continued to rot. I cut away about 3/4 or it. I'm not even sure why I bothered. I doubt it could ever root.

Don't give up hope - it's a good time of year for rooting. What you may not get is the variegation on the new plant. Can you go back to where you bought it from and tell them what happened. Chances are, other plants they have also have it, right?

OK so, was it Stush who had some luck keeping fungus away by watering with an acidic pH water? I may have to start that program. I did just get some citric acid and pH strips and I've been adding a little sulfur to the potting soil mix as I repot them in better mix.

I can't go back. I bought it on that auction site. I told the dealer. It's a long story but the guy is a shyster and I would never do business with him again.

that is interesting, adding sulfer to potting soil as an anti fungal. Where does one buy sulfer?

Any gardening center has sulfur, probably on a shelf in a box or bag.

I learned that from growing blueberries (in an area where the soil and water are alkaline, tricks to growing acid-living plants) and Norma Lewis who stated in an old thread that Sans prefer water on the acid side of the pH scale, and a couple cactus enthusiasts who found their cactus grew and flowered better if they acidified the water, and either Stush or Russ who tried it and said it worked for them.

Interesting. I've had that spot on 2 of my plants. Unsightly! How much sulfur would you add to fill a 6 inch clay pot? I need a point of reference.

Even the directions for potting soil for blueberries is vague (a handful for two sizes of pots), so I'd scale it down to a pinch. Here's the link if you maybe want to mix up a larger batch and store it: Low pH potting soil mix directions