Chinese elm discoloured leaves

[ben17487]

I have these two little Chinese elm starters that I repotted this winter. Both had the exact same treatment but one has very light coloured leaves.. The other is growing healthily. Could this be caused by a fungus?
There don't appear to be any pests on the leaves.







The healthy tree



Thanks for the help guys

Ben

[tgward]

possibly low in trace elements--try a complete fertiliser

[Firecat]

Hi Ben.
Going out on a limb sort of.
Hold on a week or so with the lighter tree.
It may just have it's seasons out of wack.
Some Chinese keep the leaves and some don't...My little tacker kept it's leaves this winter but lost them or 70% the winter before and was bare rooted and bald when I purchased it.
Being new shoots though is a bit of a new one.
I do have an English that yellows up when budding and greens up in a week or so.
The leaf shape is good with no curl or frayed edges and there seems to be no scale or and minute infestation present.
possibly a root has tapped onto a bit of concentrated fertilizer and this is following a vein (not the right term I know) to that part of the tree.
Steve.

[ben17487]

Thanks for the help guys, I'll do both, try a broader range of ferts and see what happens in time. I am already using 3-4 different brands of fertilizer, 2 different liquids and 2 different slow release. Along with seasol.

Cheers
Ben

[longd_au]

Is your soil constantly wet?
I sometime see this when my soil is constantly wet for too long. It usually disappear as the weather gets drier.

[ben17487]

Is your soil constantly wet?
I sometime see this when my soil is constantly wet for too long. It usually disappear as the weather gets drier.

Hmm that's something I'll keep an eye on, usually just the top dries out a bit between waterings, so I imagine there would still be a bit of moister beneath. I never know how much to let my soil dry out, I know junipers like it dryer than deciduous trees so I tend to keep my elms and maples a little wetter. May be doing it all wrong...

Cheers!

[shibui]

It is possible that this is just different genes in the 2 plants but more likely a mineral deficiency as tgward has suggested.

[ben17487]

It is possible that this is just different genes in the 2 plants but more likely a mineral deficiency as tgward has suggested.

In the previous growing season the two had identical foliage, and in fact have both receive the same ferts so would this not cancel out the lack of nutrients? If one is showing no signs of discolouration that is..

Cheers

[tgward]

just a theory--- same fert in different size pots?--- or different root development or....???