SU2
Omono
As far as I can panic in the context of bonsais, this is the worst... I've got a 3.5 month-old bougainvillea yamadori that I put in a wooden box that's got very tall walls (an artifact of a sloppy transplant, it was my first large yamadori, a 1' wide stump) In a back-corner of that box, a spot where little light gets in due to the tree / foliage, I was checking to see how bad the trunk's dark-green mildew was - what I found was cob-web type (looks like incredibly loosely-spun cotton) pure white mold/mildew/fungus all over the media's surface and parts of the trunk in that area....
How do I approach this? Am unsure if I should be cutting-back everything in that corner and physically remove what I can of the white fluff, or if I should be re-potting with a fungicidal drench.... has also crossed my mind to sawzall the extra ~8" of box-height that's unnecessary but fear the vibration would be real bad for fragile bougie roots.. Any help would be greatly appreciated!!
[edit- I want to mention that my reasoning for thinking it's the too-tall box that's caused this is that I'd gotten a 2nd bougie yamadori, almost equally as large, about 2 weeks after this one, and it's got no issues - the only difference between the two is that the first one's got oversized walls, I imagine the lack of wind in there was direct cause!]
How do I approach this? Am unsure if I should be cutting-back everything in that corner and physically remove what I can of the white fluff, or if I should be re-potting with a fungicidal drench.... has also crossed my mind to sawzall the extra ~8" of box-height that's unnecessary but fear the vibration would be real bad for fragile bougie roots.. Any help would be greatly appreciated!!
[edit- I want to mention that my reasoning for thinking it's the too-tall box that's caused this is that I'd gotten a 2nd bougie yamadori, almost equally as large, about 2 weeks after this one, and it's got no issues - the only difference between the two is that the first one's got oversized walls, I imagine the lack of wind in there was direct cause!]