alocasia poly leaf problem
these are young plants just about 5 months from sprouting bulbils. were healthy, grown sep from other plants, no pests of any kind. recently I noticed strange leaf mottling - it is visible only on the underside when in good light.
it is only on some plants and not on others. I potted up sev largest plants from small 7 oz cups to 6" pots - 3 in a pot one week ago. I am not sure, but I think that it's showing on more leaves. I transferred them on a heat mat - to warm up the soil in case it got cooler and wetter due to a larger pot.
they are in bright light, with some weak dappled sun in western window.
the tops of the leaves look normal.
however on one plant there is some yellowing showing - might be the leaves are getting old? no mites on them, I feed with liq. fert , so should have no nute deficiency.
should I be concerned? should I cut off affected leaves?
what could be causing this?
2 newly xplanted plants are shooting new large healthy leaves, while older leaves show the symptoms.
all plants have 3 leaves and are growing.
I also noticed the same mottling on a 1 leaf very young spout too.