Tree Health Care, Disease & Pest Treatment

Contact Our Tree Care Experts

Keeping your trees vibrant and healthy does not have to be a guessing game when you have our friendly, highly-trained professionals on your side. Expert Tree Service & Science provides honest, science-based tree health care and advanced diagnostics to protect your landscape's most valuable assets before problems spiral out of control.

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Arborist climbing and trimming a tall tree

The ROI of Early Intervention: Proactive Tree Care Services in Wisconsin & Minnesota

We often receive calls when a tree is already 25% dead, which drastically increases the risk to your property and makes it incredibly difficult to promise the tree's survival. By investing in proactive tree care services, you significantly increase the chances of saving your tree, preserving your property's overall value, and avoiding the much higher costs associated with removing a massive, dead hazard.

Our ISA-certified arborists do not just guess. We use modern, scientific methods to accurately diagnose what is stressing your tree and implement effective, targeted solutions.

Our Diagnostics Process for Tree Disease Treatment

Before we treat a tree, we must uncover the root cause of its decline. Every tree health assessment involves a comprehensive evaluation of the tree and its surrounding environment. We look for:

  • Environmental Stressors: Issues caused by weather, drought, or poor planting location.
  • Anthropogenic (Human-Caused) Issues: Problems such as soil compaction from construction or improper landscaping practices.
  • Biological Threats: Active infestations of pests or the presence of fungal pathogens.

Common Problems & Our Preventative Programs

The key to effective tree disease treatment is knowing exactly what you are up against. We frequently treat a wide range of regional threats, including Emerald Ash Borer, Oak Wilt, Two-Lined Chestnut Borer, Apple Scab, and Japanese Beetles.

Depending on the diagnosis, our treatment options may include precise trunk injections, timely canopy spraying, or deep root fertilization to restore vitality.

Prevention vs. Cure

Timing is everything in arboriculture. Some diseases can be treated after infection, while others are strictly preventative. For example, Oak Wilt on a White Oak can often be treated curatively, but on a Red Oak, treatments must be applied preventatively — once a Red Oak shows signs of Oak Wilt, it is typically too late.

This strict need for proactive care also applies to the Emerald Ash Borer, too. Timely, preventative maintenance is absolutely crucial for protecting Ash trees from this devastating pest. In fact, if an Ash tree has not been treated by now, it is generally too late to save it. Because of this reality, our Emerald Ash Borer treatments are now primarily focused on continuing the preventative care for our existing, repeat customers who intervened early.

Once an infestation takes hold and can no longer be cured or the tree can't recover, the safest course of action is to have the tree removed.

Diagnosing the Symptoms: Is Your Tree Trying to Tell You Something?

If you are noticing strange changes in your canopy, along the trunk, or within the root level, do not ignore them. Here is a quick guide to questions our team at Expert Tree Service & Science get frequently about what your tree might be experiencing:

Why is my tree turning brown or losing its leaves/needles?

Premature browning or leaf drop can be caused by extreme environmental stress, root damage, or aggressive fungal diseases disrupting the tree's vascular system.

Why is my tree dying from the top down?

When a tree dies from the top down (crown dieback), it is often a major red flag indicating root issues, severe soil compaction, or a devastating borer insect infestation cutting off nutrients to the canopy.

Why are there brown spots on the leaves of my tree?

This is often a clear indicator of a fungal infection, such as Apple Scab. While our tree fungus treatment can address this, it is highly timing-sensitive and requires strategic spraying.

Are bugs killing my tree?

If you see D-shaped exit holes, heavy woodpecker damage, or visible defoliation, pests like the Emerald Ash Borer or Japanese Beetle may be at work. Immediate intervention is critical.

Tree Health Care FAQs

When should I call in the experts for my tree?

The earlier, the better. If you notice signs of stress, early leaf drop, discoloration, or pest activity, call us for an assessment. We are much more successful if we intervene before the problem becomes severe.

Is it too late to treat my tree for Emerald Ash Borer?

Unfortunately, if your ash tree has not been treated by now and is showing heavy signs of decline, it is generally too late. We primarily focus on continuing treatments for our existing, repeat customers who have kept up with their preventative programs.

Will Apple Scab kill my tree?

No, Apple Scab is primarily an aesthetic issue and will not require you to remove the tree. However, it can make your tree look unsightly, and our strategic treatments can help keep the foliage looking lush and healthy.

Do you treat shrubs and lawns, too?

We do not treat lawns, but we absolutely provide health care for shrubs! If your shrubs require fertilizer or tree fungus treatment, our team can help restore their health.

Protect Your Property's Greatest Assets

Do not wait until a tree is 25% dead to give it the care it deserves. Reach out to Expert Tree Service & Science's ISA-certified arborists today to catch small problems before they require costly removals. Call us at 651-239-3672 or reach out to our experts online through our chat window or contact form.

Schedule a Tree Care Assessment

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Tree Service and Science

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