Thank you for contacting Ask Extension. While I cannot positively identify a condition from pictures, below are some possibilities consistent with what is shown.

Maple leaf curling and small leaves can be caused by several factors. In Michigan, two common cosmetic diseases that can cause curling are maple anthracnose and maple blister, which typically show symptoms in late spring/early summer . These diseases do not threaten the life of the tree but can cause damage to the leaves, which could lead to curling.

Additionally, physical damage to leaves from frost or young leaf scorch can cause curling as the leaves attempt to expand. Insects can also cause curling by damaging the leaves, so it's important to check for signs of insects, such as aphids or spider mites, which could be causing the issue.

If the leaves are small, it could be a sign of nutrient deficiency or water stress. Check the soil around the trees to see if it's dry, as trees in full sun may curl to conserve water. Also, consider the soil type, as sandy soils can be more challenging for trees to draw water from .

Lastly, if the trees are close to a house or other structures, heat radiating off cement or asphalt could cause leaves to curl more on the side with the reflective surface.

Yes, a root around the trunk of a maple tree can cause the tree's leaves to dry up. This is a condition known as girdling roots, where the roots grow around the trunk and restrict the water and nutrient pathways, eventually leading to dieback and thinning of the crown. Girdling roots can be caused by improper planting, where the tree is planted too deeply, or by roots growing too close to the trunk. It is important to have a certified arborist examine the tree to determine if the girdling root can be safely removed. The arborist can give a complete diagnosis and plant care plan. You can find a certified arborists by zip code here: www.treesaregood.org

You can also take a tree sample to MSU extension lab. If you go to this website, it will tell you how to submit a sample. https://www.canr.msu.edu/resources/plant_diagnostics_lab

I have included several publications for your reference:

https://www.canr.msu.edu/news/verticillium_wilt_refresher

https://extension.psu.edu/girdling-roots-to-cut-or-not-to-cut

https://www.canr.msu.edu/news/maple_leaf_blister_and_anthracnose_two_foliar_diseases_that_can_appear_on_s