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Moss? Mold? Something else. Chinese elm

  • GrahamD
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Moss? Mold? Something else. Chinese elm was created by GrahamD

Posted 7 years 4 months ago #35297
Hey again lovely folks.

It seems as I think I've overcome one problem. Another rears it's ugly head.

Just noticed this green moss/mold on the trunk of my Chinese elm tonight. And am not sure what it is. The internet has yielded no answers.

Anyone know if this is mold or moss and if it's harmful to the tree? I will remove it tomorrow night when I have time anyway as its slightly unsightly anyway. But want to know what the cause is really. So I can avoid it. As I fear it's not good.

My tree already has spider mites. Fungal gnats which I'm trying to get rid of currently too. I think that accounts for some of the leaves browning and dropping.

I recently had an aphid breakout on a nearby carmona. So both that and this tree had a dose of Rose Clear Ultra insecticide on Saturday.

Pictures attached. Thanks for any help in advance.
by GrahamD

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  • leatherback
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Replied by leatherback on topic Moss? Mold? Something else. Chinese elm

Posted 7 years 4 months ago #35299
it is either pure algea or lichen. A bit of water and a toothbrush. This is normal on trees.
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  • GrahamD
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Replied by GrahamD on topic Moss? Mold? Something else. Chinese elm

Posted 7 years 4 months ago #35301
Ahh thank you so much. I think I panicked as it's super green in artificial light, which is when I noticed it. But in daylight it doesn't seem as bad. But good to know this is normal. Was starting to think I was cursed!
by GrahamD

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