I Have An Acer Tree, Which I’ve Had For A Number Of Years. What Could Be Wrong With With It?

Question

It had small black balls on the branches which I was able to remove. Now it has these red “things” on the leaves. Is it deseased and what can we do?

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Answer 1

I see signs of insects galls, I see scale insects, and I see infections from insect damage.

These articles will help:

https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm

https://www.gardeningknowhow.com/plant-problems/environmental/treating-leaf-gall-on-plants.htm

https://www.gardeningknowhow.com/ornamental/trees/japanese-maple/japanese-maple-care.htm