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Acer Palmatum Oridono Nishiki Tree Problems [6 Things to Know]

Acer Palmatum Oridono Nishiki Tree Problems [6 Things to Know]

Acer palmatum oridono nishiki (Japanese Maple) tree is preferred by most gardeners for its low maintenance and easy-growing characteristics. Moreover, its star-shaped and attractive leaves enhance the beauty of your garden. But you have to deal with quite a few issues while planting and growing Acer palmatum trees; such as

  1. Leaves Problems
  2. Verticillium wilting
  3. Dead Brunch
  4. Powdery mildew
  5. Root rot
  6. Bark peeling

don’t be worried. Your Acer palmatum tree can be fixed if you understand the causes. So let’s learn more about the issues at hand and potential fixes.

6 Common Acer Palmatum Oridono Nishiki Tree Problems and Solutions

Acer Oridono nishiki Problems

1. Leaves Problems

Common leaf problems include the browning of leaves, yellowing of leaves, curling of leaves, and crispy leaves. But sometimes these problems can become fatal.

Causes

  • Watering Issue
  • Overexposure to sun
  • Lack of sunlight
  • Temperature fluctuations
  • Fertilizer burn
  • Pests

Treatment Guide

Overwatering and underwatering both are responsible for leaf problems in acer palmatum oridono nishiki trees. You should maintain the watering time and water requirements level. 

Acer trees generally prefer watering twice a week if the weather is normal. During the hot period, they prefer four to five times watering a week. For the young tree, you have to give them deep watering for the first few years. 

Acer trees need bright indirect sunlight for frequent growth. You have to maintain full sun with partial shade. Everyday minimum of four to five hours of unfiltered sunlight is a must. You can place your tree in a sunny spot at the beginning of the day and then move it to shade or use a shade cloth.

Although this plant can withstand temperatures of -10°C, you should keep the temperature between 2-10°C. You can also use a temperature-controlling machine.

A slow-release granular fertilizer with a lower nitrogen level can be effective. But you have to apply it one time in a season in late winter. Use a good quality insecticide. Give regular freshwater spray.

2. Verticillium Wilting

Verticillium wilting is the cause of sudden yellowing and shriveling of lower leaves, brown or black streaks in the tissue beneath the bark, and branch dieback on Acer Palmatum oridono nishiki trees.

Causes

  • Water Congestion
  • Fungal Attack

Treatment Guide

It is unable to successfully cure verticillium wilt. The Acer palmatum tree should be uprooted and destroyed rather than composted. Get rid of the affected branches from landscaping plants as soon as possible by pruning them off. Instead, use ill wood chips as landscape mulch.

Only purchase healthy plants from reputable vendors because the disease is spread by tainted soil. Plant stuff that is unhealthy should not be composted.

Before using the pruning tools on any other plants, you must disinfect them with a cleaning agent.

3. Dead Brunch

There are a few methods you can use to quickly identify dead branches. If your tree breaks while being bent, it is already dead. Again, the plant is dead if there is no growth, discoloration, or warmth.

Causes

  • fungal disease 
  • physical damage 
  • sunburn.
  • Pests
  • Pruning mistake 

Treatment Guide

Once in early winter and once in late spring, the entire plant should be sprayed with a high-quality pesticide to control pests and a fungicide to control fungus.

Remove and burn the infected areas if the infection spreads before the insecticide or fungicide is administered. Your tree will be at least 80% safe if you do this.

In order to prevent dead branches from obstructing your tree’s regular growth, pruning must be done at the appropriate time.

Winter or summer are the best times for heavier pruning. The optimal period for modest pruning in late spring. I advise you to only remove up to five percent of your tree brunches at once.

4. Powdery Mildew

If you suddenly notice a white powdery substance accumulating on the leaves of your acer palmatum oridono nishiki plant and the leaves are slowly losing their vitality, then this is powdery mildew. It can cause fatal damage to your plants if not treated in time.

Causes

  • Water logging
  • Low Humidity
  • Lack of Sun
  • Fungal attack

Treatment Guide

Water should not be allowed to accumulate at the base of the tree. Avoid planting trees in places where water accumulates during monsoons.

A good quality fungicide is the only solution to such problems. However, you may not always find authentic fungicides in the market. What I do in this case is take one liter of water in a one-and-a-half to two-liter container. 

And mix it with half a cup of neem leaf juice, three tablespoons of neem oil, and some vinegar, and shake it well. A homemade organic fungicide is done. Spry it twice a week.

5. Root Rot

Root rot is one of the most common Japanese maple trees (Acer palmatum) problems. Usually, the fungus attack starts the root rot of the tree and the tree gradually weakens. A canker or mushroom-looking growth also occurs. If necessary measures are not taken, the tree eventually dies.

Causes

  • Wet Climate
  • Lack of Oxygen
  • Fungal Infection
  • Poor Drainage

Treatment Guide

Even if the root rot of the tree is identified, the first thing you need to know is how much the tree is affected. If most of the plant’s roots are infected, you are too late.

If only a few parts of the plant are healthy, you need to remove the affected part quickly.  Arrangements should be made to plant the tree in new soil. The soil must be of good quality and have good drainage. The soil should be well-drained for adequate oxygen circulation.  

Fungicide should be sprayed on the soil to prevent fungal attacks. Trees should not be planted in very wet weather. Ensure adequate sunlight for plants.

6. Bark Peeling

Acer palmatum oridono nishiki trees have the tendency to peel or shed their bark. However, external factors are typically what set it off. Exfoliation of the tree’s upper bark, bark discoloration, and occasionally lesions on the plant’s body is possible.

Causes

  • Heat Stress
  • Animal Attack
  • Canker Disease.

Treatment Guide

You can use a metal sheet that is three to four feet high to bend your Japanese maple tree from the base up. That may deter rodents and squirrels from visiting your tree. To keep the big animal away from your tree, you can put up a fence around it.

It’s crucial to keep things at the right temperature. Despite the Oklahoma redbud’s affinity for the cold, you need to keep the weather cool.

By utilizing a high-quality fungicide, canker infections can be avoided. To avoid infection, the fungus-affected bark needs to be fully removed very away.

Frequently Asked Questions(FAQs)

What happens if Acer palmatum oridono nishiki gets too much sun?

The first sign of an acer palmatum tree being overheated is the minor browning of the leaves. The leaves may curl and develop brown blotches as the temperature rises, and the bark may flake off.

What does a stressed Acer palmatum oridono nishiki look like?

There are a few signs you need to look for to recognize a stressed Acer palmatum tree.  If you notice the changes in the color of the leaves, curling of the leaves, loss of the natural vitality of the tree, and falling down, you will understand that your tree is not getting a normal environment.

The Final Word

Understanding the plant is essential to growing any plant with care. Usually, when a problem starts in a plant, it tries to explain it by showing different symptoms. So you have to observe each symptom and find out the reason behind it.

Yellowing or browning of Acer palmatum oridono nishiki leaves, verticillium wilt, bark peeling, fungal disease, etc. are all signs of a problem. You have to understand that hint. Only then will you be able to fix your tree quickly.

Happy gardening.

James Rivenburg
James Rivenburg
James Rivenburg

James Rivenburg is the founder of plantandpest.com, a passionate gardener with valuable experience and knowledge gained through trial and error. The website has a large community of followers who trust his tips and techniques and have succeeded with his advice. He is always Committed to helping others create a beautiful and healthy garden.

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