At Bartlett's Research Lab, we produce technical reports that lead the industry in depth of knowledge on a variety of areas of importance to tree and shrub care. Browse our technical reports below.
Technical Reports
- A Guide to Managing Trees on College and Corporate Campuses
- A Method of Analyzing Starch in Landscape Plants to Assess Vitality
- Abiotic Disorders
- Adding Winter Interest
- Air Pollution Injury to Landscape Plants
- Algal Leafspot Technical Report
- Ambrosia Beetle Technical Report
- American Holly: Plant Health Care Recommendations
- Anatomy of Trees and Shrubs
- Anthracnose of Shade Trees Technical Report
- Apple: Plant Health Care Recommendations
- Ash Yellows
- Asian Longhorned Beetle Technical Report
- Austrian Pine: Plant Health Care Recommendations
- Autumn Color
- Azalea & Rhododendron: Plant Health Care Recommendations
- Bacterial Leaf Scorch Technical Report
- Bagworm
- Bamboo Management in the Landscape
- Bartlett's Root Invigoration™ Program
- Beech: Plant Health Care Recommendations
- Biochar Soil Amendment: Frequently Asked Questions
- Biochar: A Game-Changer for Soils
- Birch Leafminer Technical Report
- Black Canker and Scab of Willow Technical Report
- Black Vine Weevil Technical Report
- Blue Oak: Plant Health Care Recommendations
- BOOST® Fertilization of Trees and Shrubs
- Boron Toxicity
- Boxwood Blight Technical Report
- Boxwood Leafminer Technical Report
- Boxwood Varieties Resistant to Boxwood Blight
- Boxwood: Plant Health Care Recommendations
- Bronze Birch Borer Technical Report
- Brown Marmorated Stink Bug Technical Report
- Brown Rot
- Brown Spot Needle Blight of Pines
- Browning of Leylandii Hedges
- Bur Oak Blight
- Camellia: Plant Health Care Recommendations
- Cankerworms Technical Report
- Cavity Filling
- Cherry Bark Tortrix Technical Report
- Citrus: Plant Health Care Recommendations
- Coast Live Oak: Plant Health Care Recommendations
- Common Oak Scales
- Compartmentalization of Decay in Trees
- Crabapple Diseases Technical Report
- Crabapple: Plant Health Care Recommendations
- Cultural Disorders of Eastern White Pine
- Cytospora Canker of Spruce
- Decay Considerations In Pruning
- Declining Trees: Plant Health Care Recommendations
- Deer Resistant Plantings
- Defoliation and Its Effect on Tree Vitality
- Delving Into Biochar
- Determining Change of Lean
- Diagnosing Phytophthora Diseases in Landscape Ornamentals Technical Report
- Diplodia Tip Blight Technical Report
- Disease Resistant Elm Selections
- Dogwood Anthracnose Technical Report
- Dogwood: Plant Health Care Recommendations
- Dothistroma Needle Blight of Pines
- Douglas Fir Bark Beetle Technical Report
- Drought and Landscape Plants
- Dutch Elm Disease Technical Report
- Elm: Plant Health Care Recommendations
- Elongate Hemlock Scale Technical Report
- Emerald Ash Borer Technical Report
- Evergreen Pear: Plant Health Care Recommendations
- Excising Bark Tissue to Arrest Sudden Oak Death Canker Technical Report
- Fall Webworm Technical Report
- Fire Ant Facts Technical Report
- Fire Blight Technical Report
- Five Point Drought Recovery Program
- Flowering Cherries: Plant Health Care Recommendations
- Forest Tent Caterpillar Technical Report
- Formosan Subterranean Termite Technical Report
- Fresh Woodchip Mulch
- Fusarium Wilt of Palms
- Fuses to Record Lightning Strikes on Trees
- Gas Injury to Trees
- Gloomy Scale on Maple Technical Report
- Green Ash: Plant Health Care Recommendations
- Guidelines for Tree and Shrub Fertilization Near Waterways
- Gypsy Moth Technical Report
- Hawthorn: Plant Health Care Recommendations
- Hedge Pruning
- Hemlock Rust Mite
- Hemlock Woolly Adelgid Technical Report
- Hemlock: Plant Health Care Recommendations
- Honeylocust: Plant Health Care Recommendations
- Hydrangea Culture and Care
- Identification and Treatment of Iron Deficiency
- Identification and Treatment of Pests on Flowering Dogwood
- Identification and Treatment of Tree Declines
- IPM for Landscape Plants
- Irrigation of Landscape Plants
- Italian Cypress: Plant Health Care Recommendations
- Ivy on Trees Technical Report
- Japanese Beetle Technical Report
- Japanese Black Pine: Plant Health Care Recommendations
- Japanese Holly: Plant Health Care Recommendations
- Japanese Maple: Plant Health Care Recommendations
- Juniper Tip Blight
- Juniper: Plant Health Care Recommendations
- Keithia Blight
- Lacebugs Technical Report
- Landscape Tree Recommendations for the Eastern United States
- Laurel Wilt
- Lichen and Trees
- Lightning Protection FAQ
- Lightning Protection for Trees Technical Report
- London Plane Tree: Plant Health Care Recommendations
- Madrone Canker
- Managing Mature Trees
- Managing Oak Wilt Disease
- Managing Trees in Severe Drought
- Mature Trees: Plant Health Care Recommendations
- Mealybugs on Taxus Technical Report
- Micronutrient Deficiencies
- Mimosa Wilt Technical Report
- MoniTor-Rx: Integrated Pest Management Technical Report
- Monterey Pine: Plant Health Care Recommendations
- Mountain Laurel: Plant Health Care Recommendations
- Mulch Application Guidelines
- Mycorrhizal Inoculation
- Needle Diseases of Conifers
- Newly Planted Trees: Plant Health Care Recommendations
- Norway Maple: Plant Health Care Recommendations
- Oak Leafroller Technical Report
- Oak-Leaf Skeletonizer Technical Report
- Olive Knot
- Optimum Soil pH Ranges For Selected Common Tree Species
- Ozone Injury to Landscape Plants
- Pear Thrips Technical Report
- Pear Trellis Rust
- Pecan: Plant Health Care Recommendations
- Periodical Cicadas Technical Report
- Pesticide Application FAQ
- Pests of Pines
- Phytophthora Canker Technical Report
- Phytophthora Root and Collar Disease
- Pieris: Plant Health Care Recommendations
- Pin Oak: Plant Health Care Recommendations
- Pinewood Nematode Technical Report
- Potassium Phosphite: Plant Health Care Applications
- Powdery Mildew of Dogwood Technical Report
- Powdery Mildew Technical Report
- Preparing a Shade Garden
- Preventing and Mitigating Construction Damage to Trees
- Preventing and Treating of Stem Girdling Roots
- Preventing Damage to Trees from Grade Changes
- Prop Systems For Low Growing Tree Branches
- Pruning Standard to Maintain Landscape Trees
- Red Maple: Plant Health Care Recommendations
- Red Oak: Plant Health Care Recommendations
- Redbud: Plant Health Care Recommendations
- Relative Tolerance of Tree Species to Construction Damage
- Resistance Recording Drills for Decay Assessments
- Rhizosphaera Needlecast on Spruce Technical Report
- Role of Nutrients
- Root Collar Disorders
- Root Invigoration™ for Landscape Architects and Contractors
- Root Invigoration™ Program Before and After Care
- Root Pruning
- Rose: Plant Health Care Recommendations
- Rust Diseases of Hawthorn Technical Report
- Salt Injury to Landscape Plants
- Salt Recovery Program
- Saving Storm Damaged Trees and Shrubs
- Scale Insects Technical Report
- Seiridium Canker
- Shrub Species for Poorly Drained Soil
- Sidewalk Repair Near Trees
- Simple Steps to Aid Stressed Trees
- Small Tree Support Systems
- Soil Density Analysis
- Soil Drainage
- Soil for Urban Tree Planting
- Sonic Tomography
- Southern Magnolia: Plant Health Care Recommendations
- Southern Pine Beetle Technical Report
- Spanish Moss Management
- Species Alternatives to Flowering Dogwood
- Spider Mites Technical Report
- Spotted Lanternfly Technical Report
- Spruce Bud Scale Technical Report
- Spruce Gall Adelgids Technical Report
- Storm-Related Salt Injury On Trees and Shrubs
- Structural Pruning of Young Trees
- Sugar Maple: Plant Health Care Recommendations
- Summary of Needlecast and Needle Blight Diseases
- Taxus Disorders
- Taxus: Plant Health Care Recommendations
- Tensiometers in Landscape Plantings
- Tensiometers: Installation
- Tent Caterpillar Technical Report
- The Secret Lore of Trees
- Ticks Technical Report
- Transplanting Trees and Shrubs Using AirSpade®
- Tree Host Preferences of Gypsy Moth Technical Report
- Tree Inspections and Treatments for Storm Damaged Trees
- Tree Inventory Data Collection Attributes
- Tree Planting Concepts
- Tree Species for Alkaline Soils
- Tree Species for Planting Beneath Utility Lines
- Tree Species for Poorly Drained Soils
- Tree Support Systems
- Tubakia Leaf Spot
- Tuliptree Scale Technical Report
- Two-Lined Chestnut Borer Technical Report
- Understanding the Soil Rx Prescription Fertilization Soil Analysis Report
- Verticillium Wilt on Woody Landscape Plants Technical Report
- Verticillium Wilt Resistant Species
- Viburnum Leaf Beetle Technical Report
- Vista Pruning
- Weir's Cushion Rust of Spruce
- What to Look for When Hiring a Tree Care Company
- White Pine: Plant Health Care Recommendations
- White-barked Birch: Plant Health Care Recommendations
- Why Fertilize Landscape Trees?
- Willow-Conifer Rust Technical Report
- Winter Drying
- Winter Injuries on Landscape Plants
- Winter Moth Technical Report
- Young Established Trees
- Young Trees: Plant Health Care Recommendations