The DFW Tree Health Library
A science-based encyclopedia of 209 tree health conditions — diseases, insects, soil and root disorders, vascular and canopy failures, and decline syndromes — written for Dallas–Fort Worth and North Texas.
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Tree Diseases
Fungal, bacterial, and vascular diseases affecting North Texas shade and ornamental trees.
49 conditions →Root Diseases
Soil-borne root rots and crown pathogens that attack the root system below ground.
6 conditions →Tree Insects
Boring, sucking, and defoliating insect pests common to Dallas–Fort Worth landscapes.
15 conditions →Tree Diagnosis Comparisons
Side-by-side guides to tell commonly confused tree problems apart.
1 conditions →Soil Chemistry Disorders
Nutrient deficiencies, pH, and chemical imbalances rooted in DFW alkaline clay soils.
20 conditions →Soil Biology Disorders
Microbial, mycorrhizal, and soil food-web breakdowns that starve tree roots.
19 conditions →Root Zone Disorders
Physical and structural root-environment problems: compaction, hypoxia, and grade issues.
24 conditions →Vascular System Disorders
Failures in the xylem, phloem, and water/sugar transport systems of the tree.
7 conditions →Canopy Disorders
Crown decline, foliage, and photosynthetic disorders visible in the canopy.
3 conditions →Environmental Tree Stress
Weather, site, and human-caused stress: drought, heat, freeze, construction, and chemicals.
17 conditions →Tree Decline Syndromes
Multi-factor decline complexes and whole-tree collapse syndromes.
21 conditions →Landscape Ecosystem Disorders
Landscape- and ecosystem-scale failures of soil, biology, and ecological function.
27 conditions →