I've had a panda plant indoors in my office, by a west-facing window for about 6 months or so. Yesterday I found that there are red/brown ants around my plant and it is obvious that their target is actually my plant.
The only possible reason I can think of, is that the ants are attracted by the organic fertilizer I added to the surface of the soil a few weeks ago. The fertilizer is black, and has a cylinder shape, about 1cm long each. The instruction from the fertilizer bottom said that they can be added to the surface or mixed into the soil. So, to keep it simple, I just added it to the surface. Yesterday I saw that there's white mold on the top of the fertilizer granules, so I removed them, hoping that they will disappear the next day.
However,some of the ants still remained in the dish used to hold the excess water, and I had to kill them manually. I would like to take it back home and spray some pesticide on it. I hope they are not building a nest inside (the pot is small though, about 10 cm long).
What could be the reason for the appearance of ants?