Japanese Maple problem

Asked June 16, 2020, 1:38 PM EDT

Wondering what is attacking our Japanese maple leaves and what to do about it.

Montgomery County Maryland

3 Responses

This looks like symptoms of cold damage and we are receiving photos of Japanese maples like this from all over the state. Many plants were lured out of dormancy and then were hit with frosts and cold temperatures recently. On some trees we are also noticing damage on the top growth versus the bottom growth. This may be due to warmth from the ground area and bottom growth was not affected.
These damaged portions will eventually drop out. If the tree is otherwise healthy, it will push out new growth this spring/summer. No treatment is necessary.

Keep your tree well watered during dry periods and make sure mulch is no thicker than several inches and away from the trunk. You can send us more photos this season, if you notice additional symptoms.

Marian

Thanks! That is good news.

Thanks! That is good news.