Problem with Japanese Maples
I have four Japanese Maples in front of my house. Three are suddenly suffering from the same problem. A lot of the leaves are turning yellow and brown. The branches appear to still be alive and in areas of the trees, there is active new growth. On one tree (photos), the problem seems to be starting from the top and working its way down. A second tree has a large put localized problem area on the side facing the sun. A third tree has smaller, more random splotches. The fourth tree, which is unaffected, get's the least sun of any of them. It is tucked away in a corner. The only other problem in the yard is that a white pine died off suddenly over the winter. It was about 23 years old and is the third white pine planted by the builder to die off. The white pine is on the opposite side of the house from the Japanese Maples. Thank you for your help. I hope that everyone is safe and healthy.
Montgomery County Maryland
This looks like symptoms of cold damage. We are receiving photos of Japanese maples looking like this from all over the state. Many plants were lured out of dormancy and then were hit with frosts and cold temperatures.
Keep your trees well-watered during dry periods and make sure mulch is no thicker than 2"-3" inches deep and kept away from the trunk. You can send us more photos this season if you notice additional symptoms.
The death of the pine is unrelated.
Hope things are well with you too.