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Plant Health Management Systems

By rpdesign | 6:59 AM UTC, Fri June 12, 2026

Plant Diagnostic Assessments
Opportunities to Enhance Plant Performance

Lee Gilman & Associates, LLC offers a comprehensive interdisciplinary approach that evaluates both the plant’s cultural preferences and its surrounding environmental ecosystem factors to meet client objectives. By prioritizing opportunities to optimize a site’s fulfillment of plant growth requirements, we can unlock its inherent potential. By recommending a prioritized range of integrated pest management (IPM) and plant health care (PHC) techniques, we identify synergies and develop a prognosis. By aligning these opportunities with our client’s goals and resources, we inform management planning, including the selection of action thresholds and service levels that provide the most value. Laboratory analysis of plant, pest, soil, and chemical residues are also often a crucial component. Common opportunities to improve the performance of landscape plantings include:

  1. Insects
  2. Diseases
  3. Nematodes
  4. Invasive Vegetation Management (IVM)
  5. Water Management
       ◦ Irrigation Plan & Usage Review
       ◦ Moisture Availability Measurements
       ◦ Optimization Recommendations
           ▪ Dosage
               ▪ Frequency
               ▪ Duration
               ▪ Flow Rate
           ▪ Surface Penetration Enhancement
               ▪ Wetting Agents
               ▪ Aeration
     
  6. Laboratory Analysis of Plant & Pest Samples
    ◦ Root Feeding Nematode Analysis
    ◦ Foliar Nutrient Analysis
    ◦ Chemical and Herbicide Residue Screening
     
  7. Soil Fertility Testing
    ◦ pH
    ◦ Buffer pH
    ◦ Macronutrients
    ◦ Secondary Nutrients
    ◦ Micronutrients
    ◦ Organic Matter
    ◦ Cation Exchange Capacity (Nutrient Retention Capacity)
    ◦ Base Cation Saturation
    ◦ Sodium & Total Soluble Salts
    ◦ Bulk Density Analysis
     
  8. Abiotic People-Pressure Diseases
     
  9. Other Cultural Deficiencies

Lee Gilman

NHAA Certified Arborist  #378
ISA Tree Risk Assessment Qualified
ASCA Tree and Plant Appraisal Qualified
ISA Board Certified Master Arborist #NJ-0145B
NH Licensed Supervisory Commercial Pesticide Applicator #S-2542094

Resources

General Horticulture:

  • Tree Owner’s Manual: A comprehensive guide for tree owners
  • Trees are Good: A collection of tree owner resources
  • University of Conn: Information on ornamental plant attributes
  • University of Florida: Native information
  • University of NH: Landscaping resources
  • USDA: Plants Database
  • University of Georgia: Bugwood Center for Invasive Species and Ecosystem Health
  • Cornell University: Fact Sheets
  • University of Mass: Landscape, nursery and urban forestry fact sheets

Arboricultural Associations:

  • American Society of Consulting Arborists (ASCA)
  • International Society of Arboriculture (ISA)
  • New Hampshire Arborists Association (NHAA)
  • New Hampshire Landscape Association (NHLA)
     

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