Arborist Services
Pest & Disease Diagnosis
4th Generation Tree provides professional tree pest and disease diagnosis, treatment, and preventative care throughout San Luis Obispo County to help restore tree health, control damaging insects and pathogens, and reduce the risk of recurring problems.
CRANE
Removals over structures
PERMITS
Oak paperwork filed for you
HAUL-OFF
Included, not extra
24/7
Emergency failures
Professional Tree Pest & Disease Treatment for Healthier, More Resilient Trees
Insects, fungal diseases, nutrient deficiencies, and environmental stress can weaken trees and lead to long-term decline when problems are not identified early. 4th Generation Tree's ISA Certified Arborists provide professional tree health evaluations, pest diagnosis, disease treatment, and preventative care throughout San Luis Obispo County. Using science-based diagnostics and environmentally responsible treatment methods, we identify the source of tree health problems and develop targeted solutions designed to protect individual trees and entire landscapes.
What we do
Tree Health Evaluation & Diagnosis
Our ISA Certified Arborists inspect leaves, branches, trunks, roots, soil conditions, and surrounding environmental factors to identify the underlying cause of declining tree health before recommending treatment.
Targeted Pest & Disease Treatments
Depending on the diagnosis, we may use soil and root-zone treatments, trunk injections, canopy applications, biological controls, sanitation pruning, or other targeted methods designed to address the specific problem.
Preventative Tree Health Care
Seasonal inspections, soil amendments, proper mulching, irrigation management, and preventative treatments can strengthen trees and help reduce their susceptibility to recurring insects, diseases, and environmental stress.
Specialized Tree Care Programs
We develop customized management programs for Central Coast species such as coast live oaks, sycamores, pines, and fruit trees based on their unique pest, disease, soil, and environmental challenges.
What drives the price
01
Access
Can a chipper and a grapple truck get within reach of the trunk, or is everything coming out through a 36-inch gate by hand? This is the single biggest variable.
02
Drop zone
Open ground under the canopy means we can fell and buck. A pool, a patio or a neighbour's roof underneath means rigging or a crane, and the day gets longer.
03
Size, species and condition
Green oak weighs far more than dry pine of the same diameter, and a decayed trunk can't be climbed — both change the method before they change the price.
04
Stump and debris
Grinding is quoted with the removal. Say the word and we leave the rounds bucked for firewood, or chip everything and haul it out.
Tree Pest & Disease Services
Diagnose insect infestations, fungal diseases, bacterial infections, and other common tree health problems.
Prune and remove infected or infested branches to help limit the spread of pests and disease.
Evaluate trees for nutrient deficiencies, drought stress, drainage issues, and poor soil conditions.
Develop preventative treatment and monitoring programs for high-risk trees and properties.
Provide targeted treatment options including soil applications, trunk injections, and canopy treatments.
Create specialized care programs for oaks, sycamores, pines, fruit trees, and other vulnerable species.
TALK TO A CREW LEAD
805 462 2020
Mon–Fri 7am–4pm · 24/7 emergency
Photograph the tree, get a real number
Sixty seconds, no appointment. Works for most residential removals.
OFTEN BOOKED WITH
Pest & Disease Diagnosis in Your City
HOW IT COMES DOWN
Climbed, rigged or picked by crane
The method is decided on site by the arborist, not sold to you in advance. A tree in the open gets felled. A tree over a roof gets rigged down piece by piece, or lifted out whole by crane when that is faster and safer for the structure underneath.
CRANE
Over structures
GRAPPLE
Roadside & open ground
CLIMBERS
Tight back yards
GRINDERS
Gate-width access
Removals we've done
ALL CASE STUDIES ›
CRANE REMOVAL · ATASCADERO
Blue oak over a garage
Butt rot on a 44-inch oak with no drop zone. Picked out in nine lifts.
STORM RESPONSE · CAMBRIA
Monterey pine on a roofline
Called at 11pm, weight off the structure by morning.
SITE PREP · PASO ROBLES
Driveway alignment clearing
Eleven trees out, permitted, ahead of a grading window.
Pest & Disease Diagnosis questions
How can I tell if my tree has a pest or disease problem?
Common warning signs include discolored or wilting leaves, premature leaf drop, dead branches, holes in the trunk or bark, unusual growths, fungal activity, sticky residue, visible insects, or an unexplained decline in overall tree health.
What types of tree pests and diseases do you treat?
We diagnose and manage a variety of problems, including borers, aphids, mites, scale insects, anthracnose, powdery mildew, root diseases, cankers, bacterial infections, and other conditions affecting trees throughout the Central Coast.
How do you determine what is causing a tree to decline?
Our arborists evaluate visible symptoms, tree structure, soil and root-zone conditions, environmental stressors, and pest activity and may use additional diagnostic methods such as soil testing or tissue sampling when appropriate.
Can a diseased or infested tree be saved?
Many tree health problems can be successfully managed when identified early, although the appropriate treatment depends on the tree species, severity of the problem, overall condition, and underlying cause of decline.
How can I prevent tree pests and diseases from returning?
Regular inspections, proper irrigation, healthy soil, appropriate mulching and pruning, preventative treatments, and early identification of new symptoms can help trees remain healthier and more resistant to future pest and disease problems.
What clients say
★★★★★
I love working with local family owned businesses, and they exceeded expectations! Hard working crew, especially Jeferson the lead, he was extremely knowledgeable on pruning our oaks. We’re on almost three acres, and our views have never been better.
★★★★★
Morgan and his team at 4th Generation Tree were a HUGE help to us. They were easy to work with, flexible, and very accommodating as we worked through several tree removal and trimming needs across our church property. Their work improved both the safety and appearance of our grounds. I highly recommend!!!
★★★★★
Casey, Morgan, and their crew at 4th Generation did a great job trimming our Oak trees, removing three big pines and grinding the stumps. It was a big job and they managed it perfectly! They have been trimming our oak trees for years and we are always happy with the results! Thanks again!
Request a quote, then send us photos
Fill out the Request a Quote form to get started. Once you receive your confirmation email, simply reply with two or three photos of the tree taken from the ground. If it's already down on something, call instead.
Mon–Fri 7am–4pm · 24/7 emergency response
Request a Quote
* Required