Hi, I am trying to get some help with my potted Mexicola Grande Avocado. I potted it with a type of
lava rock. It has been out in the sun with the temp rising to 92 for 2 days now. Suddenly I noticed
the black on the main stem.
I don't know if it is fungus or the sun or what is the issue or too much watering.
I also have a Pancho Avocado potted in the same way right next to the Mexicola.
I moved the Mexicola into mostly shade, but I am asking for help with this issue.
I saw that someone put hydrogen peroxide into their watering mixture and their avocado
recovered. Also maybe I need to remove the mulch on top.
Thanks in advance for any help. Carol