The leaves on the end of branches are very slow budding this year. Is there a problem with the tree or is this normal.
They require a lot of water and acidic soil. Check your growing conditions with these articles:
https://www.gardeningknowhow.com/ornamental/trees/oak/willow-oak-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/oak/willow-oak-tree-care.htm
We planted the tree in 2018 and have failed to prune it in the recommended periods of late winter early spring. We live in Michigan.
I would not suggest pruning your dappled willow at this time of year in Michigan. If it remains warm, the plant may push new growth that cannot be hardened off before winter and will subsequently be damaged. I would definitely recommend pruning early in the spring and then again after it's first flush of new growth to keep the plant in check. Also, be sure to fertilize as the foliage displays the best pinkish tint with a nutrient rich soil.