New eucalyptus tree has strange leaf markings

[OranaGardener]

Hello, I bought a small eucalypt last year and it's grown quite quickly but its new leaves have this red blotchiness. It is very smooth, no bumps or spores. Do you know what it could be please?

[OranaGardener]

That is very interesting, Jacob! I wonder if it could be the answer. It's certainly in a sunny spot and we are underneath the hole in the ozone layer down here! I'll let you know how it goes. Thanks for your interest and help.

[OranaGardener]

Hi, I posted a few weeks ago about a young eucalypt in my garden that had strange, red markings. Well, since then the newest leaves have died and the tree has stopped growing. I've fed it a little weak seaweed solution but otherwise have withheld water, in case it had been overwatered. It's had rain though.

But now my lovely Silver Princess, which is about 12 years old, seems to have similar markings on its new leaves. They may not be the same and I hope they aren't, as I think my little eucalypt is dying and I don't want my Silver Princess to die! Do you think its the same thing?

 

[JacobZ]

Hi @OranaGardener,

I have combined this post with your last as the context may help our readers better understand and offer advice.

As @Noelle mentioned in your earlier post, the discolouration looks to be in the leaves as opposed to on it like you would expect with a fungal issue.

Is it possible to get some close-up photos of the soil around your trees? 

A close-up of the trunk of the trees would also help. Can you see any insects or strange markings on the tree itself?

How to treat Silver princess eucalyptus from @DanD1 is a similar discussion where potential solutions have been offered. 

Allow me to tag @mich1972 and @robchin to see what they think.

I'm sorry I can't be more help, but this one has me stumped.

Jacob

[robchin]

Thanks @JacobZ for looping me in. 

Firstly - sorry to hear your plants aren't going well. Eucalyptus plants do vary a lot and are susceptible to various pests and diseases. Good news is that it very seldom actually kills them. 

I'm not an expert of pests of Eucs but they look like different things to me but I couldn't tell you exaclty what they are. I can tell you that it isn't Myrtle Rust though - which may kill your plants.  

I would note a couple of things: 

1) Never good to feed a plant if it is sick. 

2) You are right - over watering can be bad for establishing plants. 

Good luck.