Pest & Disease Diagnosis & Treatment

Pest & Disease Diagnosis & Treatment – San Luis Obispo County

Trees across the Central Coast face constant threats from insects, fungi, and environmental stress. At 4th Generation Tree (4G Tree), our ISA Certified Arborists provide professional pest and disease diagnosis and treatment services throughout San Luis Obispo County—including Paso Robles, Atascadero, San Luis Obispo, Arroyo Grande, and Creston.

We combine scientific expertise with environmentally responsible treatments to restore tree health and prevent recurring problems.

Tree Health Evaluation & Diagnosis

Early detection is the key to saving stressed or declining trees. Our arborists perform detailed inspections to identify visible symptoms and underlying causes of poor tree health.

Common conditions we diagnose include:

• Fungal diseases (Anthracnose, Oak Root Fungus, Powdery Mildew).
• Insect infestations (Borers, Scale, Aphids, Mites).
• Bacterial infections and cankers.
• Nutrient deficiencies and soil imbalance.
• Environmental stress from drought or poor drainage.

We use visual inspection, soil testing, and tissue sampling to confirm the problem before recommending treatment.

Pest & Disease Treatment Options

Our approach emphasizes targeted, low-impact solutions that preserve beneficial organisms and the surrounding environment.

Treatment options include:

• Root-zone applications for systemic nutrient and pest control.
• Trunk injections to combat internal fungal or insect infestations.
• Canopy sprays for large-scale management of mites and foliar diseases.
• Biological and organic control methods to minimize chemical use.
• Pruning and sanitation to remove infected or infested branches safely.

All treatments are performed by Qualified Applicators (License #168666) in full compliance with state and environmental regulations.

Monitoring & Preventative Care

Once treatment is complete, ongoing monitoring ensures long-term success. We develop custom monitoring programs to prevent recurrence, improve soil health, and strengthen trees against future stress.

Programs may include:

• Annual or seasonal re-inspections.
• Preventative nutrient treatments or soil amendments.
• Mulching and irrigation management.
• Early detection protocols for high-risk properties or species.

Specialized Tree Care Programs

We provide customized treatment plans for the region’s most vulnerable species, including:

• Coast Live Oaks – Management of oak moths, root rot, and wilt fungi.
• Sycamores – Anthracnose and borer prevention programs.
• Pines – Pitch canker, bark beetle, and nutrient restoration.
• Fruit Trees – Pest management to promote yield and longevity.

Our science-driven approach helps preserve the health of individual trees and entire landscapes.

Why Choose 4th Generation Tree

• ISA Certified Arborists & Qualified Applicators with diagnostic expertise.
• Environmentally responsible treatments tailored to your property.
• Comprehensive monitoring for long-term protection.
• Trusted by homeowners, HOAs, and municipalities across San Luis Obispo County.
• Licensed & Insured Contractor (CSLB #906700)—safe, professional service every time.

Restore Tree Health & Prevent Future Damage

If your trees show signs of disease or infestation, act early. Contact 4th Generation Tree for certified tree pest and disease diagnosis and treatment anywhere in San Luis Obispo County.

805-462-2020 | info@4gtree.com

Serving Paso Robles, Atascadero, San Luis Obispo, Arroyo Grande, and Creston.