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Insect and disease management

Insect and disease management

Bartlett Tree Experts uses an integrated approach to managing insects and diseases on your property. This begins with maintaining plant health using sound cultural practices, including pruning and creating optimal soil conditions for plant growth.
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Controlling pest and disease outbreaks

Periodic inspections are essential to detect pest infestations before they reach damaging levels. Bartlett arborists are trained to recognize beneficial insects that will help naturally suppress pest populations, and we also release beneficials to augment existing populations. When treatments are necessary, Bartlett can apply organic and naturally based materials and reduced-risk products that provide effective pest suppression while protecting people and the environment.

Top 10 insects

Hundreds of insect species damage leaves, stems, and branches; roots; and flowers and fruit of landscape plants. But not all insects on trees and shrubs are damaging. Some are beneficial and may help pollinate flowers or could be predators or parasites on insects that damage plants. Bartlett arborists are trained to correctly identify these beneficial insects and mites and can devise effective management programs that protect landscape plants from serious damage while conserving beneficial organisms.

Top ten insect and arthropod pests that threaten or damage landscape plants in the northeastern United States:

  1. Hemlock woolly adelgid
  2. Winter moths
  3. Japanese beetles
  4. Asian long-horned beetles
  5. Ambrosia beetles
  6. Southern pine beetles
  7. Emerald ash borer, including bronze birch borer and two-lined chestnut borer
  8. Weevils
  9. Spider mites
  10. Scale insects

Top 10 diseases

Diseases are abnormalities in trees and shrubs caused by microorganisms such as fungi and bacteria and by environmental stress such as drought, temperature extremes, and air pollution. Diseases are often difficult to diagnose as different causal agents can produce similar symptoms. Accurate diagnosis is essential to developing effective treatment programs. Bartlett operates a modern diagnostic laboratory to support pest management services to ensure accurate identification and treatment of plant problems.

Top ten diseases that threaten or damage landscape plants in the northeastern United States:

  1. Bacterial leaf scorch
  2. Phytophthora root rot
  3. Dutch elm disease
  4. Leaf spot diseases
  5. Anthracnose
  6. Needlecast
  7. Verticillium wilt
  8. Fire blight
  9. Bleeding canker and Phytophthora canker
  10. Powdery mildew
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Bartlett Tree Experts offers scientifically based tree services. Get in touch:

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Related FAQs

Emerald Ash Borer (EAB) is actively damaging and killing trees in the Northwest DC area. If you have any ash trees, I would recommend reaching out to our staff and scheduling an inspection to determine what can be done to save your ash trees. You can make an appointment here with one of our arborists.
You have a fungal leaf spot on your Red Maple. This is very common on Red Maple and is typically not detrimental to tree health. It can be sprayed with fungicide treatments but is typically not needed. If the problem persisits you can make an appointment with one of our professionals.
Magnolia scale is a common pest on magnolia trees and we have noticed an increase in population this year.

Magnolia scale generally requires two spray applications with an insecticide labeled for scale between mid-August and late September to suppress scale crawlers. Applications may be needed again next year if there is a heavy population on your magnolia.
There may be an insect problems affecting your Hemlock. It would be best to have one of our professionals come out for a free consultation. Click here to schedule your appointment.
We would be glad to help with the services we provide like plant healthcare and soil management. You can use this link to contact one of our professionals.