An Integrated Approach

Bartlett Tree Experts uses an integrated approach to managing insects and diseases. Our approach begins with maintaining plant health using sound cultural practices including pruning and creating optimal soil conditions for plant growth.

Regular inspections are essential to find pest infestations before they reach harmful levels. Bartlett's certified arborists are trained to find beneficial insects that will help naturally suppress pest populations, and we also release beneficials to help existing populations and solve pest problems through biological control.

When treatments are needed, Bartlett can use organic and naturally based materials and reduced-risk products for insect control. These chemical controls provide effective pest suppression and insect management while protecting people and the environment.

Top-10 Insects

Hundreds of insect species damage leaves, stems, branches, roots, flowers, and fruit of landscape plants. But not all insects on trees and shrubs are damaging. Some are beneficial and may help pollinate flowers. Others could be predators or parasites on insects that damage plants. Much like trap crops, these natural enemies can be useful in deterring insect problems naturally, without the need for chemical controls. Bartlett arborists are trained to find these beneficial insects and mites. We can devise integrated pest management programs that protect landscape plants from serious damage while also protecting beneficial organisms.

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

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

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Top-10 Diseases

Tree and shrub diseases are often caused by microorganisms such as fungi and bacteria. Tree and shrub diseases can also be caused by environmental stressors 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 for long-term tree health. 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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Tick Management
Tick Management

Ticks don't feed on landscape plants, but they commonly infest landscapes throughout the Northeast and Mid-Atlantic states.

The diseases that ticks carry are quickly transferred to humans and pets. Managing ticks requires an integrated approach including landscape modifications such as pruning and removing weedy vegetation to reduce tick habitats.

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Deer Management
Deer Management

Technically, deer cannot be categorized as an insect or disease, but they are a significant threat to landscapes in the Northeast. One mature deer can consume more than 4 pounds of foliage per day, which can destroy landscape plants seemingly overnight. Deer are very intelligent animals that adapt quickly to tactics designed to deter them. At Bartlett Tree Experts, developing effective strategies to deter deer browse has been a major area of emphasis. We have developed methods to suppress feeding and protect plants using physical barriers as well as effective repellents including organic and natural-based products.

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