名媛直播

Hello, first time user of this forum. I have a maple bonsai tree, which obviously has some sort of disease. Every May or June I start noticing black spots on leaves. First on few leaves and then in a month or two slowly on all leaves. I try to remove infected leaves, but it does not help. I tried applying some fungicides, but it does not stop. I have tree on my balcony, facing east, has shadowed sun till noon. See attached pictures...

Hi Mersault,

welcome to the forum.

I am not sure what the problem is. However, your tree in general is not healthy. The big variation in greenness of the leaves indicate a shortage. Do you fertilize? And if so, with what? Or is the soil showing a lot of scale build-up?

Thank you for your answer. The color of leaves is not so different as seen on this picture. I fertilize every 2 weeks with generic liquid fertilizer using filtered water (with Brita filters). There are no limescale deposits on ground. 名媛直播 is potted in pumice soil.

Any other ideas? Infected leaves are growing in number and brownish black spots-stains are getting larger...