New dwarf Japanese maple

Question

I have a tiny tree, about 8 ” tall. Something is nibbling away at it. What can I do.

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Answer 1

It looks like damage from a chewing insect such as caterpillars, beetles, or earwigs. Check the leaves on the top and bottom frequently, and you might catch the culprit. Then you can look up the best control methods.
http://msue.anr.msu.edu/news/what_is_eating_my_leaves_spring_leaf_eaters_gardeners_should_know
https://www.gardeningknowhow.com/plant-problems/pests/insects/prevent-caterpillars.htm