Plant Health Care

Tree Health & Plant Health Care Services

Protecting Tree Health in Paso Robles, Atascadero & San Luis Obispo

At 4th Generation Tree (4G Tree), we specialize in plant health care and pest management solutions that keep your trees thriving year-round. From insect infestations to fungal and bacterial diseases, our certified experts provide targeted treatments to protect your property’s most valuable natural assets.

Serving Paso Robles, Atascadero, San Luis Obispo, and surrounding Central Coast communities, our team combines science, safety, and sustainability to deliver effective results for both homeowners and commercial landscapes.

Our ISA Certified Arborists and Qualified Applicators (QAL #168666) ensure all treatments are applied safely, effectively, and in full compliance with California state regulations.

Comprehensive Tree Spraying & Pest Control Services

• Insect & Disease Management – Protecting trees from pests such as aphids, borers, scale, and mites.
• Integrated Pest Management (IPM) – A proactive, eco-conscious approach that minimizes chemical use while controlling pest populations.
• Fungicide & Bactericide Treatments – Targeted applications to treat and prevent fungal and bacterial infections.
• Nutrient & Fertilization Programs – Custom soil and foliar treatments to correct nutrient deficiencies and promote vigorous growth.
• Preventative Tree Spraying – Seasonal protection to stop recurring infestations and disease outbreaks before they start.

Common Tree Pests & Diseases We Treat

• Aphids, Scale & Mites – Sap-sucking insects that weaken trees and cause premature leaf drop.
• Borers (Emerald Ash Borer, Bark Beetles, etc.) – Invasive pests that destroy trees from within.
• Fire Blight & Bacterial Infections – Diseases that cause dieback, leaf wilt, and structural decline.
• Anthracnose & Powdery Mildew – Fungal pathogens that damage foliage and reduce photosynthesis.
• Root Rot & Canker Diseases – Soilborne or wound-entry pathogens that compromise structural stability.

Our treatments are designed to protect native species like oaks, sycamores, pines, and fruit trees common to the Paso Robles, Atascadero, and San Luis Obispo region.

Why Choose 4th Generation Tree

• ISA-Certified Arborists & Licensed Applicators – Trained in advanced plant health diagnostics and treatment application.
• Eco-Friendly Solutions – Safe, responsible formulations that protect pollinators and the surrounding environment.
• Custom Care Plans – Each tree and site receives a tailored program based on species, soil type, and local conditions.
• Long-Term Prevention – We focus on proactive treatments to prevent issues before they threaten tree health.
• Local Expertise – Deep understanding of Central Coast pest cycles, soil conditions, and weather patterns.

The Central Coast’s Trusted Tree Health Specialists

With over 70 years of experience serving San Luis Obispo County, 4G Tree provides reliable and science-based tree health care for residential, commercial, and municipal clients. Our focus is on preserving trees—not just treating them—by combining diagnosis, treatment, and long-term monitoring.

We help property owners protect investments, reduce fire and storm vulnerability, and maintain landscapes that flourish year after year.

Schedule a Tree Health Consultation Today

Protect your trees before pests or disease take hold. Contact 4th Generation Tree today for a professional tree health assessment and custom treatment plan.

Call now for a consultation or quote

Visit 4gtree.com to schedule tree spraying, pest control, or disease treatment services in Paso Robles, Atascadero, or San Luis Obispo.