Dracaena reflexa (song of india) slowly dying with black spots
I've tried searching here on the forum, but I'm getting mixed diagnoses of what might be wrong with my poor dracaena. We just bought three of these little guys and potted them a month ago. After a few weeks, they started developing these black dead spots all over the leaves and at the tips. The spots are spreading no matter what we do. I suspected it was our water supply (which has chlorine but not fluoride). So we're now using filtered water w/out chlorine. Then I suspected overwatering. So we've let the soil dry out between watering. And finally someone suggested this was black leaf spot fungus. I sprayed the plant with a fungicide, but it hasn't done anything. Changing all these habits hasn't helped, and the plant has these dead spots that keep growing every day. The dead spots are dry and not smelly/rotten. Any idea what's causing this? See pictures. Thanks!
This post was edited by Jottle on Thu, Sep 12, 13 at 14:39