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Hi,

First time poster looking for advice. Today when I was pruning my bonsai (Chinese elm) I noticed some yellow leaves, some with black spots. After some quick research it points towards black spot or a fungal infection but I wanted some other opinions. Can anyone confirm this?
I estimate the tree to be between 2-4 years old, I have had it for 5 months and have watered carefully as the soil required, not allowing it to become too dry or too moist and have used a liquid feed/water mix once a week so I don't think it's a hydration issues.
I intent to purchase some fungicide to hopefully resolve the problem and have removed all effected leave I can see. Can anyone recommend some reputable fungicide brands available in the UK? And any other recommendations on how to treat it?

Any other general advice would be greatly appreciated.

Thanks!

Adam

advice for treatment: It should be outside.

Can I ask where you got it from? I've seen that weird zebra pot on here loads of times but can't seem to find them in any shop.

Ed
n.b. look up the term ''Mallsai'' if you haven't already.

I was gifted this bonsai a few months ago, I believe it was bough from an ASDA supermarket in the U.K.
I know it is a very cheap tree, and after googling 'mallsai' i would agree, its a basic tree sold as a cheap gift but it is my first bonsai and i wanted to keep it healthy and hopefully re-pot it next year. It has got me interested enough to looks for a couple more. I'm looking to buy a Jade (Portulacaria) bonsai this week.