I got Bubba a nice big umbrella plant about a month and a half ago and now the branches on the are turning black and a a lot of leaves keep falling it doesn’t look good at all but I take good care of it anyone have advice ?
how often are you watering? i have an umbrella in my sun room and only water it once every 2-3 weeks. only needs minimal sunlight too so i'm guessing you may be watering too much.
also, if you have spots on your leaves then I'd suggest cutting off their branches and washing (hot water and tiny amount of liquid soap - followed by a water bath/rinse).
if the plant looks really bad, give it some fertilizer (can be liquid mixed in with its water). just make sure your cham doesn't dig or else, grab some pebbles/rocks that are too large for your cham to consider eating/swallowing.
Check the bottom of the potting soil. It could be sitting completely saturated with water. Eventually the roots of the plant will suffocate, rot and kill it. The potting soil could be full of rot and fungus, so you will need to repot it with new soil. Also, if the dying leaves are all on the bottom shaded part of the plant it could be "self-pruning". The leaves that are not getting enough light eventually die off, but the leaves that are getting the light at the top are taking over most of the photosynthesis.
Overwatering is much more common than not enough water. Look for signs of cobwebs that might signal mites. If you have a scope take off a leaf and look at it under magnification (even a good magnifying lens might do the trick at 25X or so).
Cut off any dead or diseased foliage.
Post a pic of it.
Make sure it has VERY good drainage- there needs to be holes in the bottom of the pot and the dish/saucer underneath should not have standing water for more than half a day. Make sure you are using a clay pot not plastic. The soil should be correct too- commercial potting soil amended with other ingredients so that it has correct pH, fertilizer, and something to hold moisture such as peat.