Hi, some leaves have browning on my Esk Sunset Maple. The tree gets full sun and there has been no frost. It's mainly been in the 60's every day. Only 2 warmer days recently where it was in the mid to upper 70's. This spring I removed some girdling roots near the root flare when it had buds. The tree didn't put on that much new growth this spring. Any ideas? Do you think the tree is stressed from the root loss? The tree was planted in the spring of 2018. Thanks.