Bartlett Tree Experts uses an integrated approach to managing insects and diseases that begins with maintaining plant health using sound cultural practices including pruning and creating optimal soil conditions for plant growth. 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 natural-based materials and reduced-risk products that provide effective pest suppression while protecting people and the environment.
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 insect and arthropod pests that threaten or damage landscape plants on the West Coast:
- Oakworm
- Turpentine beetle
- Oak Bark beetle
- Bronze birch borer
- Ambrosia beetles
- Pysllids
- Whiteflies
- Spider mites
- Scale insects
- Thrips
- Weevils
- Adelgids
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 diagnosis 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 diseases that threaten or damage landscape plants on the West Coast:
- Sudden oak death
- Phytophthora root rot
- Dutch elm disease
- Fireblight
- Anthracnose
- Leafspot diseases
- Wood decay
- Cankers
- Verticillium wilt
- Nutrient deficiencies
- Drought
- Powdery mildew
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