Plant health care programs in South Shore MA. Pest management, disease treatment, deep root fertilization, trunk injections. ISA Certified. 508-369-5009.
ISA Certified Arborists
Internationally recognized credentials
Fully Insured & Licensed
Complete liability coverage
24/7 Emergency Service
Real people answer the phone
Serving 60+ Towns
All of South Shore MA
Plant Health Care is the arboricultural equivalent of preventive medicine. Rather than waiting for a tree to decline and then reacting with emergency measures, a PHC program establishes a year-round cycle of monitoring, prevention, and targeted treatment that keeps your trees and shrubs healthy, vigorous, and resistant to the pests and diseases that threaten the South Shore's urban forest.
The South Shore faces a growing list of serious tree health threats. Spongy moth caterpillars (formerly gypsy moth) can strip an oak canopy bare in a matter of weeks. Winter moth larvae bore into buds before they even open, reducing oak growth by nearly half. Emerald ash borer — the most devastating tree insect in North American history — is killing every untreated ash tree in its path across Massachusetts. Hemlock woolly adelgid is slowly destroying the Eastern hemlocks that provide year-round screening and shade on thousands of South Shore properties. And bacterial leaf scorch, anthracnose, and various root rots quietly weaken trees that appear healthy on the surface.
Our PHC programs are individually designed for each property based on an ISA Certified Arborist's assessment of your trees, soil, site conditions, and the specific threats present. We do not offer one-size-fits-all spray programs. Instead, we use Integrated Pest Management principles — monitoring first, treating only when thresholds are reached, using the least toxic effective method, and always considering the tree's overall health as the primary defense against pests and disease.
A comprehensive PHC program typically includes 3 to 4 scheduled visits per year: a spring assessment and early-season treatments (dormant oil, caterpillar management), a summer monitoring and mid-season treatment visit, a fall deep root fertilization and soil care visit, and a late-fall or winter assessment for planning the following year. Between visits, we are available for urgent concerns — a sudden outbreak of defoliation, a suspicious decline, or a newly identified pest.
Why It Matters
The math is straightforward: treating a mature tree for a pest or disease costs $200 to $500 per year. Removing that same tree after it dies costs $1,500 to $3,000. Replacing it with a comparable specimen — if one even exists — costs another $1,000 to $2,500. And you lose the 30 to 100 years of growth that gave the original tree its size, shade, and property value. A $15,000 mature oak that dies from a treatable pest infestation is a $15,000 loss that could have been prevented for a few hundred dollars a year.
Beyond individual tree value, South Shore properties depend on their tree canopy for privacy, wind protection, shade, stormwater management, and curb appeal. Losing multiple trees to a pest outbreak or disease — as happens during severe spongy moth or winter moth years — can fundamentally change a property's character and value. Properties that maintain proactive PHC programs weather these outbreaks while their neighbors lose trees.
Soil health is the foundation that most tree care ignores entirely. South Shore soils range from sandy and nutrient-poor along the coast to compacted clay inland, and suburban development has compacted, graded, and stripped topsoil from most residential lots. Trees growing in these degraded soils are nutritionally stressed before any pest even arrives. Deep root fertilization, soil amendment, and mycorrhizal inoculation restore the soil biology that trees evolved to depend on — creating the conditions where trees can defend themselves against pests and diseases rather than relying solely on chemical interventions.
Our Approach
Our Plant Health Care process begins with a comprehensive property assessment. Our ISA Certified Arborist walks your property and evaluates every significant tree and shrub: species identification, size, condition, structural integrity, signs of pest activity, disease symptoms, soil conditions, and site factors like drainage, compaction, and sun exposure. We also collect soil samples for laboratory analysis when conditions warrant — measuring pH, nutrient levels, organic matter content, and microbial activity.
From this assessment, we develop a custom PHC plan that addresses your property's specific needs. The plan identifies which trees need treatment, what threats are present or likely, which treatments are recommended, and when they should be applied. We prioritize treatments based on urgency and value — a century-old oak with early signs of decline gets immediate attention, while a young birch with minor aphid activity may only need monitoring.
Our treatment methods are selected for effectiveness and environmental responsibility. Dormant oil sprays in late March target overwintering scale insects, mites, and winter moth eggs without affecting beneficial insects that are not yet active. Btk (Bacillus thuringiensis) — a naturally occurring bacterium — controls spongy moth and winter moth caterpillars without harming birds, bees, or other wildlife. Trunk injections deliver emerald ash borer protection and nutrient supplements directly into the tree's vascular system, bypassing the soil entirely and eliminating spray drift. Deep root fertilization injects custom-blended nutrients under pressure 8 to 12 inches below the soil surface, feeding roots directly and aerating compacted soil simultaneously.
We monitor between scheduled visits and adjust the plan as conditions change. A wet spring may increase fungal disease pressure. A drought summer may stress trees and make them vulnerable to opportunistic pests. An early warm spell may advance insect emergence by weeks. Our arborists track these conditions and respond proactively.
What's Included
Btk spray applied in late April to early May when caterpillars are young and vulnerable. Critical timing — once caterpillars are large, treatment effectiveness drops dramatically. Protects oaks, maples, and beech from defoliation.
Dormant oil sprays in early spring target egg masses on bark, and Btk application at bud break controls larvae before they bore into buds. Winter moth has reduced South Shore oak growth by up to 47 percent in affected areas.
Trunk injection with emamectin benzoate — the gold standard treatment — protects ash trees for 2 to 3 years per injection. Applied in late June or early July when the vascular system is most active. Only recommended for healthy ash trees with landscape value.
Soil systemic treatments and trunk injections protect Eastern hemlocks from this devastating sap-feeding insect. Look for white cottony masses at the base of needles from fall through spring. Untreated hemlocks die within 4 to 10 years.
Custom-blended nutrients injected under pressure 8 to 12 inches below the soil surface in a grid pattern from trunk to drip line. Feeds roots directly, aerates compacted soil, and stimulates beneficial microbial activity.
Property assessment for deer tick habitat — stone walls, leaf litter, woodland edges — with perimeter treatments and landscape modification recommendations to reduce tick populations on your property.
Investment
Plant Health Care programs are individually designed and priced based on the size of your property, number and species of trees, current conditions, and the treatments required. Most residential PHC programs on the South Shore run $800 to $2,500 per year for a property with 10 to 30 significant trees, covering 3 to 4 scheduled visits plus monitoring and targeted treatments as needed.
Individual treatments for specific issues — a single spongy moth spray, an emerald ash borer trunk injection, a deep root fertilization — typically range from $150 to $500 depending on tree size and treatment complexity. These can be performed as standalone services or as part of a comprehensive annual program.
The most important number to consider is the cost of NOT treating. A PHC program that costs $1,500 per year protects trees worth $50,000 or more in combined landscape value. Losing even one mature oak to a treatable pest infestation costs more in removal, replacement, and lost property value than a decade of PHC care.
Timing
PHC is a year-round discipline on the South Shore, with each season bringing specific priorities. Late March brings dormant oil sprays targeting overwintering pests before bud break. Late April through May is the critical window for spongy moth and winter moth treatment — timing is everything, and treatments applied too late are ineffective. June and July focus on emerald ash borer injections, hemlock adelgid treatments, and summer pest monitoring. September and October are ideal for deep root fertilization and soil care, giving roots a nutrient boost before winter dormancy. November through February is assessment and planning season — monitoring for hemlock woolly adelgid (most visible in winter), evaluating tree condition, and preparing the following year's treatment plan. Starting a PHC program in any season is beneficial, but spring and fall are the most impactful entry points.
FAQ
Plant Health Care is a proactive, year-round program of monitoring, prevention, and targeted treatment designed to keep your trees and shrubs healthy. Rather than waiting for a crisis, PHC identifies and addresses threats early — when treatment is most effective and least expensive.
PHC starts with soil health and overall tree vitality — healthy trees resist pests far better than stressed ones. Pest control is one component, but we use Integrated Pest Management principles: monitor first, treat only when necessary, use the least toxic effective method, and always support the tree's natural defenses.
Almost certainly hemlock woolly adelgid — a sap-feeding insect that appears as white cottony masses at the base of needles. This pest is treatable with soil systemics or trunk injections, but it will kill your hemlocks within 4 to 10 years if left unmanaged. Contact us for an assessment.
Yes — but timing is critical. Btk spray must be applied in late April to early May when caterpillars are in their first or second instar (small). Once caterpillars are large, they become resistant to treatment. Call us before you see defoliation, not after.
If the tree is healthy and has significant landscape value, absolutely. Trunk injection with emamectin benzoate costs a fraction of removal and replacement, and protects the tree for 2 to 3 years per treatment. We only recommend treating ash trees that are in good enough condition to justify the investment.
A professional treatment where custom-blended liquid nutrients are injected under pressure 8 to 12 inches below the soil surface in a grid pattern extending from near the trunk to the drip line. It delivers nutrition directly to roots, aerates compacted soil, and stimulates beneficial soil biology. Far more effective than surface-applied granular fertilizer.
We offer tick habitat assessment, perimeter treatments targeting deer tick zones (stone walls, leaf litter edges, woodland borders), and landscape modification recommendations. Deer tick populations on the South Shore are among the highest in Massachusetts, and targeted habitat management is the most effective long-term approach.
Programs are custom-designed based on your property. Most residential programs on the South Shore run $800 to $2,500 per year for 3 to 4 visits plus monitoring and treatments. Individual treatments range from $150 to $500. We provide a free property assessment and detailed quote.
Our Process
We visit your property, inspect the trees, and discuss your goals. No cost, no obligation.
You receive a detailed scope of work and transparent pricing before any work begins.
Our ISA Certified crew completes the work safely and efficiently using proper equipment.
We haul all debris, rake the area clean, and walk the site with you to ensure satisfaction.
Our Work
Testimonials
“I would highly recommend Southeast Arborist to anyone in need of tree service! Mike and his team were very pleasant and professional, providing outstanding service!!! Reasonable pricing! The team came on date and time as promised, the clean up was well above and beyond what we would have expected!!”
Bernadette MacLean
Google Review
“Highly professional. Reasonable, listens to you and helps formulate the homeowners vision. He transformed my yard in less than a day and hauled it away. Pleasant to work with, honest and reliable. Highly recommend him!”
Ivy N.
Google Review
More Services
Safe tree removal by ISA Certified Arborists in South Shore MA. Crane-assisted, fully insured. Free estimates: 508-369-5009.
Learn more →
ANSI A300 tree pruning and trimming by ISA Certified Arborists in South Shore MA. Crown thinning, deadwood removal. Call 508-369-5009.
Learn more →24/7 emergency tree service in South Shore MA. Storm damage, fallen trees, hazardous limbs. Real people answer. Call 508-369-5009.
Learn more →
Commercial stump grinding in South Shore MA. Same-day add-on with tree removals. Rayco equipment. Free quotes: 508-369-5009.
Learn more →Free assessments, written quotes, and professional service from ISA Certified Arborists.
Southeast Arborist, LLC · P.O. Box 1361, Plymouth, MA 02362
