Hello,

From the images you have provided, I identified the trees as silver maples (Acer saccharinum)

It’s concerning to see the bark peeling off your Silver Maple trees. Bark peeling can be a natural process for some trees, including Silver Maples, especially during periods of growth or in response to environmental factors. More information at this links:

Bark shedding from trees during summer - Gardening in Michigan (msu.edu)

Shedding, Peeling, and Splitting Bark on Shade Trees | Yard and Garden (iastate.edu)

However, if the peeling is extensive and not typical for the species, it could indicate other issues. Here are some potential causes and solutions for bark peeling on Silver Maples:

Normal Growth & Development: As Silver Maples grow, the outer bark layer thickens, and the outermost tissue dies, causing the outer layers to crack and sometimes peel off. This is a normal process and doesn’t require management. More information at this links:

Bark shedding from trees during summer - Gardening in Michigan (msu.edu)

Shedding, Peeling, and Splitting Bark on Shade Trees | Yard and Garden (iastate.edu)

Environmental Factors: Extreme weather conditions, such as rapid air temperature or soil moisture fluctuations, can cause the bark to peel. Dry conditions followed by wet conditions can lead to excessive growth, possibly splitting bark. More information is at this link:

barksplitting.pdf (cornell.edu)

Insects & Diseases: While peeling bark can be normal, it can signify insect infestation or disease. It’s important to inspect the tree for signs of pests or decay.

Mechanical Damage: Damage from lawn equipment or animals can cause wounds that lead to peeling bark.

Management Strategies: Avoid fertilizing late in the growing season, as this can promote new growth susceptible to winter injuries. If a split occurs, allowing the tree to heal naturally is best. Tree wound paints are generally not recommended, as they do little to aid healing. More information is at this link:

barksplitting.pdf (cornell.edu)

Since you’ve already tried pepper oil without success, consulting with a local arborist or a tree care specialist who can inspect your trees in person and provide a more accurate diagnosis and tailored solution might be beneficial. They can determine if the peeling is part of the tree’s natural process or if there’s an underlying issue that needs to be addressed to ensure the health of your trees.

You can consult a local certified arborist for a more detailed onsite assessment and personalized advice. To find a certified arborist in your Zip Code, go to this link:

Find an Arborist (treesaregood.org)

I hope this helps!