- alocasia plant
- bought from a nursery
- placed in a well-lit corner of the room, without direct sunlight
- plant is not over-watered, only watered when soil dries
- got it for about 3 weeks now
issues - day 21
- some of the plant leaves are getting yellow: big ones and small, old ones and new.
- some leaved suffer from a black spot / spec (similar to this). it's not over-watered, so i suspect a bacteria of some sort, but the black part is at the edge of the lead and doesn't look like bacterial spots (for example). i had another leaf that got lower for some reason, touched the floor, and had the same black symptom (and later was cut off).
issues - day 22
- overnight the disease / virus infected the leaf. now it looks like a fungus / virus. my guess is black spot disease (also seen here), a severe case of Rust Fungus (as seen here) or Early Blight (also seen here, section 11).
- this only infects some leaves - note that all others look healthy.
- though stated before (because it's the first thing that comes to mind), i find it hard to believe that it was over-watered. i still consider the possibility - but the plant was only watered once (when put into current pot), and sprayed with water (just plain water) once.
- i did notice in the first two weeks the plant was "sweating", meaning it was soaking water from the ground and expressing it out of his leaves. it always looked like there was rain just now.
any idea on what can be the issue?