Cut out every last little bit of rot. You want to cut back until you reach healthy green/white tissue that bleeds latex. Dust the cut ends of both parts with a fungicide, I wouldn't use bleach or peroxide. You can seal the branches on the plant with a latex caulk after they've dried for a couple days. You want to allow the cuttings that you are planning to root to dry for about 2 weeks. Dip those in a rooting hormone before potting them up. If any rot is left in the plant there's a good chance that it will spread. Even if you remove all visible rot you could still loose the plant due to whatever made it start rotting to begin with. I hope you are able to save it.
Karyn

Karyn, why wouldn't you use bleach or peroxide...will that harm the plant. I don't really want to use a fungicide, so I need to find a more natural means. Have you heard of anything in that vein that works.

jc

The only thing I would use bleach for is to clean garden tools and containers. I use a diluted hydrogen peroxide to prevent damping off of seedlings but I don't think it would help prevent rot in a mature plant. I have heard of people using cinnamon as a fungicide but have no idea if it really works. I don't use insecticides or herbicides and I don't spray entire plants with fungicide but I do dust the cut ends of my plumerias with a fungicide. I also use rooting powder that contains a fungicide to root cuttings.
Karyn

Hi All!

I am new here too!

I have a 6 inch stem and I had a wicked root ball a few weeks ago and then it all rotted off - I have just cut off all the rot visible and there is still latex flowing - should I begin to try rooting it again or let it dry for 2 weeks? Wont it die without water?

Thanks!

Butterfly1118