Answer: If you've only recently planted your maple it is probably going through a little transplant shock and will need some time to adjust to growing in your landscape. Be sure to water deeply once each week to help it establish. Cold weather and unseasonable hot weather can both do damage to the leaves but when this happens early in the season the tree usually will drop the damaged leaves and develop healthy new leaves. If damage happens in late summer, the tree will usually drop the affected leaves but no more new leaves will be developed until the following spring. I'd just water deeply once a week and give the tree a chance to adjust and begin to grow for you. I don't think it is dying - I think it will recover soon. Enjoy!
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