What might be this Japanese Maple's problem? - Ask Extension
My Japanese Maple stopped growing on one side of the tree after 3 successful years. I treated it with BioAdvanced Tree & Shrub protect and feed la...
Knowledgebase
What might be this Japanese Maple's problem? #865521
Asked April 22, 2024, 9:49 PM EDT
My Japanese Maple stopped growing on one side of the tree after 3 successful years. I treated it with BioAdvanced Tree & Shrub protect and feed last year when dead sections were first noted. This year, a bit more leaf growth has come out on some branches, but there are still major areas that are dead/dry/leafless. Also, the bark is pulling away from the trunk at the bottom, but you can see in the photos that new growth is coming from the trunk.
I did another protect and feed treatment this spring, but not sure if I should be trimming back the dead branches or just leave it for another season and see how it does? Can it recover with the bark pulling away?
Berrien County Michigan
Expert Response
Hello,
Your Japanese Maple’s condition is concerning, but there are steps you can take to address the issues. Let’s break down the symptoms and potential solutions:
Leaf Curling:
Curling leaves can indicate dehydration or pest infestations. Ensure your tree receives regular, deep watering during dry spells. Mulching around the base can help retain soil moisture.
If pests are the issue, consider using an organic insecticide or introducing beneficial insects like ladybugs to control aphids.
Leaves Turning Brown:
Browning leaves may result from environmental stressors such as extreme temperatures, wind, or sun exposure. Plant your Japanese maple in a location that offers some protection from harsh afternoon sun and strong winds.
Avoid overfertilization, as excess nitrogen can lead to brown leaves. Consult a certified arborist if you suspect disease like verticillium wilt.
Leaf Scorch:
Leaf scorch appears as brown, dried-out patches on leaves due to environmental stress. Protect your tree from intense sunlight and strong winds.
Overfertilization can also cause leaf scorch. Ensure proper fertilization and consult an arborist if needed.
Slow Growth:
Japanese maples are not known for rapid growth. However, if your tree seems particularly slow, consider the following:
Soil Conditions: Ensure well-draining soil to prevent waterlogged roots, which hinder growth.
Light: Make sure your tree receives adequate light.
Nutrients: Check for necessary nutrients.
Bark Pulling Away:
Bark pulling away from the trunk could be a sign of stress or disease. Verticillium wilt can cause dieback and affect bark integrity. More information at the link:
https://www.canr.msu.edu/news/verticillium_wilt_refresher
BOTTOMLINE - Consult an arborist to assess the extent of damage and determine if trimming back dead branches is necessary. To find an arborist in your Zip Code go to this link:
https://www.treesaregood.org/findanarborist/arboristsearch
Remember, it’s essential to diagnose the specific cause of these symptoms before taking action. An arborist can provide personalized advice based on your tree’s condition.
I hope this helps!
Your Japanese Maple’s condition is concerning, but there are steps you can take to address the issues. Let’s break down the symptoms and potential solutions:
Leaf Curling:
Curling leaves can indicate dehydration or pest infestations. Ensure your tree receives regular, deep watering during dry spells. Mulching around the base can help retain soil moisture.
If pests are the issue, consider using an organic insecticide or introducing beneficial insects like ladybugs to control aphids.
Leaves Turning Brown:
Browning leaves may result from environmental stressors such as extreme temperatures, wind, or sun exposure. Plant your Japanese maple in a location that offers some protection from harsh afternoon sun and strong winds.
Avoid overfertilization, as excess nitrogen can lead to brown leaves. Consult a certified arborist if you suspect disease like verticillium wilt.
Leaf Scorch:
Leaf scorch appears as brown, dried-out patches on leaves due to environmental stress. Protect your tree from intense sunlight and strong winds.
Overfertilization can also cause leaf scorch. Ensure proper fertilization and consult an arborist if needed.
Slow Growth:
Japanese maples are not known for rapid growth. However, if your tree seems particularly slow, consider the following:
Soil Conditions: Ensure well-draining soil to prevent waterlogged roots, which hinder growth.
Light: Make sure your tree receives adequate light.
Nutrients: Check for necessary nutrients.
Bark Pulling Away:
Bark pulling away from the trunk could be a sign of stress or disease. Verticillium wilt can cause dieback and affect bark integrity. More information at the link:
https://www.canr.msu.edu/news/verticillium_wilt_refresher
BOTTOMLINE - Consult an arborist to assess the extent of damage and determine if trimming back dead branches is necessary. To find an arborist in your Zip Code go to this link:
https://www.treesaregood.org/findanarborist/arboristsearch
Remember, it’s essential to diagnose the specific cause of these symptoms before taking action. An arborist can provide personalized advice based on your tree’s condition.
I hope this helps!
