5 Signs Your Tree or Shrub is Sick (or Dying) & What to Do (2024)

It can be frustrating when trees and shrubs fail to look or perform their best. They are an essential part of the landscape and often no small investment. The last thing that you want is to see them decline.

If you’ve spotted a tree or shrub in your landscape that is struggling, you might be wondering whether it can be fixed.

However, before that question can be answered, you’ll need a proper diagnosis. While some problems are treatable, the hard truth is that some are not. Sometimes it comes down to catching a problem early on, while it can still be fixed.

That’s why we’ve rounded up signs your tree or shrub is sick. Here are 5 that you may have noticed.

1. You See Discoloration

Discoloration is one of the telltale signs a tree or shrub is sick. Oftentimes, it’s that the leaves are turning yellow or maybe just lacking overall vibrancy. Most homeowners assume this is one of the signs trees or shrubs need water. However, plant leaves can also yellow when a tree or shrub has received too much water.

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Yellowing can also be a sign that a tree or shrub is struggling with a disease or pest problem. Nutrient deficiency can also cause the foliage to yellow. This happens when the plant draws the nutrients the soil lacks from its own leaves.

2. Leaves Look Munched Upon

Do your plant leaves look as though they were a pest’s lunch? Unfortunately, there are a number of different insects that feed on plants and this could be at the heart of your trouble. When you notice that leaves have small holes or irregular, jagged edges, you could have a variety of different insect problems at hand.

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Fortunately, insects do leave behind clues with different chewing patterns. Some even chew on different parts of the leaf. Beetles, for instance, tend to feast on the middle part of foliage, skeletonizing the leaves and leaving only the veins. Caterpillars on the other hand, feed throughout the leaves creating large and irregularly shaped holes.

As long as you’re on the lookout for damage, an expert will be able to identify the exact cause and treat it.

3. There’s “Something” on Your Trees and Shrubs

Are you suddenly seeing webbing or cottony masses on your trees or shrubs? Or do they appear “shiny,” coated with a sticky substance?

Spotting something yucky on your plants can be amongst the signs that your tree or shrub is sick.

The proper diagnosis of this problem comes down to exactly what it is that you’re seeing.

If you’ve spotted something sticky, that is most likely honeydew, a substance excreted from certain insects like scale, whiteflies, or aphids. These pests create this substance after feeding on plant sugars. However, instead of the honeydew itself, you may see a black, sooty mold. This mold is actually growing on the honeydew itself.

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If it’s not a sticky substance but white “fuzzy stuff,” this could actually be a sign of fungus. Or, it’s possible you have a colony of insects like woolly Aphids or scale taking up residence. These pests can be mistaken for fuzzy mold but are actually a type of sucking insect that lives off of plant fluids. Egg sacks from certain insects can also appear as white cottony masses.

Spider mites can also leave webbing behind (typically on the underside of leaves) and could be at the root of your problem.

4. The Leaves are Stippled, Dull, or Distorted

Your leaves might not be turning yellow or coated in any substances, but they still might not look right. Perhaps they’re shriveling and distorted. Aphids, which are small, soft-bodied insects that tend to multiply quickly, have piercing sucking mouthparts that they use to feed on plant sap. Some trees are sensitive to the saliva that aphids inject during feeding and may respond by puckering or distorting. This can begin to happen with only a few aphids.

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On the other hand, a mite infestation can cause foliage to become stippled, yellow, and dry. Mites suck juices from the plants, causing their foliage to become dull and ultimately curl up.

5. You See Bark Problems

While we’ve primarily focused on the foliage of the plants, you might also see problems with the bark or stems. These can also be signs a tree or shrub is sick.

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For instance, bark holes, sometimes also accompanied by sawdust coming from these holes, may seem like a telltale sign that your tree is being eaten by insects. The common culprit is likely the larvae of wood-boring insects. Borers can also cause twig dieback and ultimately the total decline of a plant.

Are These Signs a Tree or Shrub is Dying?

Now that you have a better sense of some of the signs that a tree or shrub is sick, and what could be causing the problem, what you probably really want to know is, can it be saved?

You really don’t want to find out that your tree or shrub is dying.

The truth is, it’s always better to prevent these types of problems than to allow trees and shrubs to get to a point where their health is in jeopardy. A large majority of tree and shrub problems can be prevented with Plant Health Care. This proactive approach is invaluable when it comes to protecting your landscape.

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You want to protect your trees and shrubs before there are signs of trouble or stress. Trees, in particular, can take years to show the effect of a deep-seated problem, so you want to always be proactive in supporting their health and welfare. Plants that are receiving Plant Health Care services are definitely healthier, stronger and better protected against insects, disease and other environmental stressors.

When a Tree or Shrub Cannot be Saved

However, we recognize that homeowners are not always proactive about plant health care. We understand it can be easy to get caught up in so many other areas of your property and when your plants are performing well, you might not be thinking about what they need.

For this reason, a lot of times we don’t get called in until there is already a problem.

These situations must be analyzed on a case-by-case basis. If a tree or shrub is not too far gone, sometimes it can be saved. But Plant Health Care is not a magical serum and it can’t fix all problems. If you have trees and shrubs that cannot be saved, the best you can do is protect the rest of your plant material going forward.

Because we are affiliated with a sister company, Michael Hatcher & Associates, we are also able to fulfill your tree and shrub removal and replacement needs—if it does reach that point. Then you can make sure that this new plant material is protected for the future.

Your Plant Health Care Wishes are Our Command

At Master Lawn, we are here for all of your shrub and ornamental tree (15 feet or smaller) needs. We understand the value that they provide and that you are committed to protecting them.

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We want to be your partner in that effort.

By allowing us to be your guide, you’ll be able to get the full enjoyment out of your shrubs and trees as they grow and thrive. This should help take away your worries and grant you peace of mind.

Ready to stop worrying about the health of your property’s trees and shrubs by investing in protection for your landscape? Request a quote, get your customized Plant Health Care plan, and become the master of your landscape.

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Image sources: scale insect, yellow leaf with black spot disease, aphids, wood-boring beetle damage

5 Signs Your Tree or Shrub is Sick (or Dying) & What to Do (2024)

FAQs

What to do if shrubs are dying? ›

Water your shrub thoroughly to help with the growth process, and then prune out any lingering dead stems that didn't sprout new leaves. Saturated soil surrounding your brown shrubs is a sign of overwatering. Let up on the hydration until the soil dries out.

What is killing my trees and shrubs? ›

Many below-ground reasons may cause tree decline. Drought, flooding, compaction of the root zone, poor soils, planting too deeply, inadequate space for roots, and many more factors could be involved. Often, diagnosing such a problem is a process of elimination.

How do you save a damaged tree? ›

If damage is relatively slight, prune the broken branches, repair torn bark or rough edges around wounds, and let the tree begin the process of wound repair. A mature shade tree can usually survive the loss of one major limb. The broken branch should be pruned back to the trunk.

How do you know if a tree is healthy? ›

Healthy trees have dense bark, strong branches, and lots of vibrant leaves. Regularly inspect for bare spots, excessive dead branches, and signs of tree disease. Keep trees healthy with proper pruning, mulching, watering, and fertilizing. Your best bet for saving a dying tree is to call a certified arborist.

What happens when a tree dies? ›

When a tree dies naturally or falls due to extreme weather events, new life springs forward. Fungi communities flourish on dead wood, salamanders create breeding grounds, and saplings grow on the nutrient-rich bark.

How do you save a dying evergreen tree? ›

Prune back all dead or affected areas of the tree to avoid secondary infestations and disease. Provide the tree with one deep watering per week, allowing water to reach down 12 to 15 inches. Several light waterings will encourage roots to grow near the surface (augmenting the problem), stick to deep watering.

Why is my new tree dying? ›

Improper watering. Improper planting depth. Poorly prepared planting hole. Poor quality of nursery stock.

How do you help a struggling shrub? ›

“For hardy perennials or shrubs, apply slow release garden fertilizer or compost,” Charais says. “If a plant is struggling, a small amount of fertilizer can help it along.” Use a basic 10-10-10 fertilizer at recommended rates. Prune the dead. When a shrub has a few dead branches among new growth, remove the dead.

What does a dying plant look like? ›

Yellowing or Wilting Leaves

Discolored or drooping leaves is often an indication of a dead plant.

Why is part of my shrub dying? ›

Lack of sunlight causes leaves in the center of the shrub to drop, leaving dead-looking interior branches. Cankers, anthracnose and fire blight are all diseases that can also cause die back of branches in shrubs. More serious issues like root or crown rot, can lead to the death of an entire shrub.

How do you nurse a tree back to health? ›

Maintain the basic health of your trees with regular watering and proper pruning. Loosely pack mulching around your tree base for breathability and nutrient absorption. Use caution when landscaping near trees to avoid injury and disruption to its root system. Don't write off your sick tree as dead.

What do shrubs need to survive? ›

Just like people, shrubs need food and water in order to survive and thrive. Keep an eye on the weather and water as necessary to make sure your shrubs have all of the moisture they need to stay healthy. In terms of fertilizer, you probably don't need to apply any when first planting a shrub on your property.

How do I grow a Christmas tree? ›

Fresh seeds are best soaked, then chilled in a freezer before being sown outdoors in a gritty seedbed. After a couple of years, the youngsters can be transplanted to where they're to grow and, 10 years after that, you'll be able to toddle out with saw in hand and cut your own.

Can a dying plant make you sick? ›

In most cases, the answer is no. The fungi, bacteria, viruses, and nematodes that cause disease in plants are very different from those that cause disease in humans and other animals.

How do you save a dying outdoor plant? ›

To get started, trim back any dead leaves and some foliage, especially if the majority of the roots are damaged. This will make it so the roots have less to support and can recover more efficiently. Next, trim the dead part of the stems until you see green. Ideally, new stems will grow from these trimmed stems.

Why do my plants keep dying? ›

The most common mistake that well-meaning plant parents make is overwatering, which can cause root rot that will ultimately kill your plant. Root rot comes from a pathogen that thrives in a consistently moist environment; if soil is left soggy for too long, the once-dormant pathogen activates and attacks the roots.

Why are my shrubs turning brown and dying? ›

There are so many different reasons why your tree could be turning brown: diseases, a lack of nutrition in the soil, dehydration, or an infestation. Each of those problems could lead you to another problem that you have to fix before you can save the tree. In winter, the culprit is likely to be soil that is too cold.

What is bark used for? ›

Products derived from bark include bark shingle siding and wall coverings, spices and other flavorings, tanbark for tannin, resin, latex, medicines, poisons, various hallucinogenic chemicals and cork. Bark has been used to make cloth, canoes, and ropes and used as a surface for paintings and map making.

How can we save trees with root damage? ›

Aerate The Roots

When damage to the roots occur—especially if the soil has been compacted—you will need to aerate the soil. Improved soil aeration allows for water, air, and nutrients to better reach the roots of your trees. It also alleviates soil compaction.

What is a dead or dying tree called? ›

Dead Wood Brings New Life

Standing dead and dying trees, called “snags” or “wildlife trees,” are important for wildlife in both natural and landscaped settings, occurring as a result of disease, lightning, fire, animal damage, too much shade, drought, root competition, as well as old age.

What causes trees to fall? ›

What Causes A Tree To Fall Over? There are plenty of reasons why trees can sometimes fall over. Among them are improper planting conditions, advanced insect infestation, malnutrition, poor soil condition, flooding, construction damage, old age, and a host of other causes.

Can you save a tree thats dying? ›

Saving a dying tree is possible, but it takes experience, care, and foresight. There are many environmental factors that can cause a tree's health to decline, the most common offenders being insect damage and disease.

How do you water a dying tree? ›

A drip hose works well to get the water to the tree, but you can also pierce holes 24 inches (61 cm.) deep around the drip line, putting in a hole every two feet (61 cm.). Fill those holes with sand to create a direct and long-lasting pipeline for water to run down to the roots.

Why is my tree dying from the top down? ›

If your tree is dying from the top down it is experiencing a common but serious tree symptom call crown decline. Crown decline can be caused by many issues including, root stress or damage, insects, drought, and bad soil composition.

Can ants damage trees? ›

Generally, ants themselves don't damage a tree. Instead, they provide a warning sign that our tree is in trouble, which can help us act fast to treat it.

What does a stressed tree look like? ›

Less growth, off-color or smaller than normal foliage, early leaf drop, cracked bark and dying branches are all indications that a tree may be under stress.

Can a sick tree be saved? ›

Severe trunk and root problems often lead to removal, but if caught early enough, the tree may be saved. Pruning, trimming and at times fertilizing trees can help nurse them back to health.

Does shaking a tree hurt it? ›

Any visible root exposure after trunk shaking does not measurably affect water or nutrient uptake by roots relative to hand-harvested trees. Thus, there is no long-term physiological stress caused by mechanical harvesting. Irrigated, well-managed trees are not measurably harmed by normal MH.

How do you save a distressed tree? ›

It's possible to try and care for your trees on their own when they become stressed. One good way to do this is by strengthening the roots and improving the quality of your soil through fertilization and mulching. If the roots aren't getting their nutrients through water then they need some other way to get it.

What makes leaves fall off trees? ›

The changes in weather and daylight trigger a hormone that releases a chemical message to each leaf that it is time to prepare for winter. Over the next few weeks, abscission cells form a bumpy line at the place where the leaf stem meets the branch. And slowly, but surely, the leaf is “pushed” from the tree branch.

How do I know if my evergreen tree is dying? ›

Needle dropping on the inside branches of evergreens is to be expected through autumn. Brown needles at the tips and of new growth indicate a dying tree. Evergreens naturally lose some needles to reduce winter snow and ice damage. Evergreen shrubs like Red Tipped photinias, rhododendrons, and euonymuses do the same.

What is killing my tree? ›

Many below-ground reasons may cause tree decline. Drought, flooding, compaction of the root zone, poor soils, planting too deeply, inadequate space for roots, and many more factors could be involved. Often, diagnosing such a problem is a process of elimination.

Should you prune a sick tree? ›

If you suspect your tree is damaged or unhealthy it is best to have an expert prune back the damaged area of a tree a soon as you notice it. Wounded trees that are left untreated become at risk of infection and dying, which could end up costing a lot to remove in the long run.

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