Alpine Tree Service

Insect & Disease Management

Protect your trees with proactive, natural care that stops pests and disease before they threaten your landscape.

Protecting Your Trees from Pests and Disease

Healthy trees don’t happen by accident—they’re the result of consistent care, proactive monitoring, and informed treatment when needed. At Alpine Tree Service, our insect and disease management is part of a broader Plant Health Care (PHC) philosophy: protecting trees before problems become serious, and helping them thrive for decades.

Our ISA Certified Arborists combine science-based diagnostics with natural, low-impact treatments and soil-building strategies to keep your trees healthy and resilient. We don’t just treat symptoms; we address the underlying causes of decline—often starting in the soil—so your trees can thrive for decades.

Common Issues We Treat

Our team regularly diagnoses and treats a wide range of insect and disease concerns.

It’s important to remember that many tree health issues look similar to the untrained eye. For example, yellow leaves could signal a nutrient deficiency, drought stress, pests, or a fungal disease. A professional site inspection is the best way to identify the true cause and prevent further damage. 

While symptoms can overlap, here are some of the most common problems we see—and what you might notice at home:

Borers

Look for small, round, or D-shaped exit holes in the bark, thinning canopies, or branches that suddenly die back.

Aphids and Scale Insects

These pests often leave behind a sticky residue on leaves, cause leaf curling, or lead to yellowing foliage. You may also notice ants gathering, since they’re attracted to the honeydew aphids produce.

Spider Mites

These tiny pests thrive in hot, dry conditions. Signs include speckled or stippled leaves, fine webbing on branches, and premature leaf drop.

Leaf Spot Diseases

Watch for small brown, black, or yellow spots on leaves. Over time, these spots can cause leaves to yellow and fall off earlier than normal.

Powdery Mildew

Appears as a white or gray powdery coating on leaves, which can distort growth and reduce vigor.

Fire Blight

A bacterial disease that makes leaves and shoots appear suddenly scorched or blackened, often giving branches a “burnt” look.

Our Integrated Pest Management (IPM) Approach

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Targeted, Natural Treatments

When control is necessary, we use precise, low-impact methods that protect pollinators, beneficial insects, and surrounding plants.

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Long-Term Protection

By improving soil biology and plant nutrition, we strengthen the tree’s immune response and natural defense systems, reducing reliance on chemical applications.

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Prevention First

Healthy soil and well-nourished trees are naturally more resistant to pests and disease. We use Alpine’s own natural soil treatments to build resilience from the ground up.

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Regular Monitoring

Our arborists track pest and disease activity through scheduled inspections to identify thresholds before intervention is needed.

Many clients call us when they notice yellowing leaves, thinning canopies, or branches that look unhealthy. These are often the first visible signs of stress—but by the time symptoms appear, a tree may already be struggling.

That’s why plant health care is so important. Regular inspections and balanced soil care allow us to catch issues early and treat them naturally before pests or disease can spread. Rather than relying on routine pesticide use, we follow Integrated Pest Management (IPM) principles—strengthening trees through improved soil biology, monitoring pest thresholds, and applying targeted treatments only when necessary.

By focusing on prevention and ecosystem balance, we reduce pest pressure and disease risk while protecting beneficial insects, pollinators, and your surrounding landscape.

Plant Health Care Programs

Insect and disease management is just one piece of keeping trees healthy. For clients who want long-term results, we recommend enrolling in a Plant Health Care (PHC) treatment plan. These plans can cover anything from soil nutrition to pest and disease prevention, and routine inspections by our ISA Certified Arborists.

With PHC, Alpine becomes your partner in tree care. Not just for one job, but for the life of your landscape.

PHC is designed to:

  • Preserve the structure, beauty, and safety of your trees
  • Catch issues early before they become costly problems
  • Strengthen trees with proactive soil care and nutrition
  • Provide consistent, year-round monitoring for peace of mind

Our PHC programs are a great fit for:

Protect Your Trees Today

If you’ve noticed yellowing leaves, thinning canopies, or other signs of stress, don’t wait until the problem spreads. Contact us today for a free, no-obligation consultation with a certified arborist. Together, we’ll create a plan to protect your trees and preserve their beauty for years to come.

Plant Health Care FAQ

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How do I know if my tree has a pest or disease problem?

Common warning signs include yellowing or spotted leaves, thinning canopies, holes in bark, sticky residue on leaves, or sudden branch dieback. Because these symptoms can overlap, the only way to know for sure is a professional inspection.

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Will treatments harm my pets, kids, or pollinators?

No. We use environmentally responsible methods and offer organic treatment options whenever possible. Protecting your family and the ecosystem is always a priority.

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Can you save a tree that’s already badly damaged?

In many cases, yes. Strengthening soil and treating pests or disease can help restore health. If removal is the only safe option, we’ll explain why and guide you through next steps.

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Do all pests and diseases require treatment?

Not always. Some issues can be monitored, while others require immediate action. Our arborists will recommend the best course of action for your trees.

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How often should my trees be inspected?

We recommend at least one annual inspection, but many clients choose ongoing PHC programs for year-round monitoring and prevention.