Hello all! I have a question for any of you growing coffee plants. Over this past winter I purchased a few coffee plants and I am curious because the leaves seem to turn brown at the tips and the lower leaves seem to turn yellow and fall off. I have heard others say this happens to them but I don't know if it is normal or if something is wrong with it. I have found a few mealy bugs but my plants are small enough that I should have gotten most of them off by hand and then I sprayed it with safer soap.
Last night I was at Lowe's and they had a few young coffee plants and to my surprise they looked like mine...some burnt looking leaves and just not real healthy looking. I have thought maybe they have some fungal problem because sometimes I see a white residue on the leaves but I also saw this at the plants at lowe's so I was thinking maybe the leaves are prone to water spots? Also maybe it is the cooler conditions in my house. At night and during the day it probably gets into the lower 60s near the windows with the cold Kansas wind.
Please let me know if you all have any ideas. I appreciate it.