Q.My Plant Is Slimy At The Base
The new shoots come up and have a slimy brown coating over them. I also have the smaller leaves that are drooping. Is something wrong with my plant?
Certified GKH Gardening Expert
This does appear to be an infection. Usually, this is caused by soils that remain too moist and don't get a chance to dry out.
I would make sure to let the top 2 inches of soil dry out, very thoroughly, between waterings. You will need to treat with a fungicide, as well.
Here are some articles that will help: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/houseplants/philodendron/tree-philodendron-houseplants.htm