Tree Pest and Disease Diagnosis by an ISA Certified Arborist

Tree pests and diseases can significantly impact tree health, structure, and longevity. At Truly Arbor Care, pest and disease evaluations are led by an ISA Certified Arborist and focus on identifying the causal agent before treatment decisions are made.

Distinguishing Biotic and Abiotic Problems

Not all tree decline is caused by insects or disease. We differentiate between biotic factors such as insects and pathogens, and abiotic stressors including soil conditions, moisture extremes, mechanical injury, and nutrient imbalance.

Insect Injury Evaluation

Insect-related problems may involve defoliators, borers, sap-feeding insects, or root-affecting pests. We evaluate feeding patterns, life cycles, and damage thresholds to determine whether treatment is warranted.

Fungal and Bacterial Disease Assessment

Fungal pathogens, vascular diseases, and bacterial infections can disrupt water and nutrient transport within trees. Disease assessments focus on symptom development, progression, and species susceptibility to determine appropriate management strategies.

Laboratory Testing and Diagnostic Confirmation

When visual symptoms are inconclusive, soil samples or plant tissue samples may be submitted for laboratory analysis. Lab-supported diagnosis improves treatment accuracy and avoids unnecessary or ineffective applications.

Integrated Pest and Disease Management

Treatment recommendations follow integrated pest management (IPM) principles and may include cultural practices, plant health care treatments, systemic applications, or monitoring depending on diagnosis and severity.

Systemic Treatments and Targeted Applications

When appropriate, systemic treatments or low-volume macro-infusion may be used to manage specific pests or diseases. These methods are selected based on effectiveness, timing, and environmental responsibility.

ISA-Guided Professional Judgment

All pest and disease evaluations and treatment recommendations are made by an ISA Certified Arborist using arboricultural science and professional judgment. Our goal is to protect tree health while minimizing unnecessary intervention.