Plant health care
Seasonal monitoring of trees and shrubs, with treatment directed at the insect, disease, or site stress that the inspection supports.
Plant health care
Troy, Michigan
Stewards provides plant health care, lawn fertilization and weed control, and pest management in Troy and surrounding communities. We assess symptoms on the plant and the conditions of the site, then recommend care suited to that landscape.
01 · Services
Plant health care follows trees and shrubs through the season for insects, disease, and stress from soil, water, and placement. Lawn programs feed cool-season turf and manage weeds, and they take up insects or disease only when the lawn is showing them. Pest management inspects where insects are active around the building and what is allowing them to stay. Many properties need more than one of these.
Seasonal monitoring of trees and shrubs, with treatment directed at the insect, disease, or site stress that the inspection supports.
Plant health careFertilization and weed control timed to cool-season growth, with grub and disease work only where the lawn shows those problems.
Lawn fertilization and weed controlInspection of insect activity around the building, followed by treatment and housekeeping steps aimed at the source rather than a blanket application.
Pest control
02 · Plant problems
Oak wilt, apple scab, spruce needle cast, magnolia scale, and birch decline each leave a recognizable pattern. The notes below are what usually appears first. They are not a diagnosis of a particular tree.

Red oaks can brown from the top of the crown and drop leaves within weeks. Michigan State University Extension treats fresh wounds from April 15 through July 15 as the higher-risk period, because sap beetles can carry the fungus to those cuts. Drought and construction injury can look similar until the tree is examined.
What to look forAfter a cool, wet spring, crabapple leaves develop olive to brown spots, then yellow and fall early. One season of defoliation seldom kills a mature tree. Repeated leaf loss reduces the energy the tree can store.
What to look forColorado blue spruce often keeps green tips while older needles inside the canopy turn purple-brown and drop. Rhizosphaera infects the new growth in spring; the browning usually shows the following year. Tight spacing and poor air movement make the pattern worse.
What to look forThe first sign is usually sticky honeydew on leaves and paving, followed by dark sooty mold. The large tan bumps on the twigs are the settled scale. In Michigan the mobile crawlers are typically active in late summer.
What to look forPaper birch and European white birch thin from the top when heat, drought, or a dry planting site have already stressed them. Bronze birch borer is the insect that follows that decline. River birch is generally better suited to this climate.
What to look for03 · Getting started
A useful request names the plant or the part of the lawn, where it sits, and how the property is used. The guides explain the patterns worth noticing.
Interior needle drop on a spruce, broadleaf weeds in shade, or insects along a foundation. The plant name helps when you know it.
Sun or shade, wet or hard ground, one tree or a whole screen. Drought and disease often look alike until the location is clear.
Pets, a vegetable garden, a well, or a gate change how care is planned.Request an assessment when you are ready.
More about the company is on the approach page.
04 · Learning
Guides on examining a tree or shrub, separating causes of lawn stress, and the order in which problems usually appear through a southeast Michigan year.
Trees and shrubs
How crown pattern, twig symptoms, and site conditions separate drought, disease, and borers before any treatment is chosen.
Read the guideLawns
How shade, wear, drought, grubs, and foliar disease leave different marks on cool-season turf.
Read the guideThe year
The order in which snow mold, scab, grubs, scale, and insects around the home usually appear in southeast Michigan.
Read the guide05 · Communities
Stewards is based in Troy and serves Birmingham, Bloomfield Hills, Novi, Northville (both the city and the township), Rochester Hills, and Oakland Township. Properties in other nearby communities can request service as well.
Home base
Mature maple streets and spruce screens on a large suburban grid, split by Big Beaver and I-75.
Care in TroyOlder streets
Older street trees and smaller lots near downtown, opening to larger yards toward the edges.
Care in BirminghamWooded lots
Large wooded lots, long drives, and specimen trees beside maintained lawn.
Care in Bloomfield HillsSubdivisions and woods
Newer subdivision plantings beside retained woods, with I-96 and the commercial edge nearby.
Care in NoviCity and township
The city and the township, from downtown lots to larger parcels on both sides of the county line.
Care in NorthvilleClinton River corridor
Rolling subdivisions and wooded rear lines, distinct from the City of Rochester.
Care in Rochester HillsLarger parcels
Larger parcels north of Rochester Hills, where maintained lawn meets woods and outbuildings.
Care in Oakland Township06 · The year
Cool-season turf, woody plants, and insects around the home follow a fairly steady order here. The seasonal guide goes further.
As snow recedes, snow mold and vole runways show in the turf, and winter burn becomes obvious on boxwood and rhododendron. Crabapple scab begins in a cool, wet stretch. From mid-April, fresh pruning wounds on oaks overlap the period when oak-wilt beetles are active. Pavement ants begin trailing along warmed concrete.
Cool-season lawns slow, and drought, grubs, dollar spot, and brown patch can all leave brown turf. Japanese beetles feed on lindens, roses, and grapes. Spruce that lost interior needles the year before look thinnest in July. Wasps and mosquitoes become the insects people notice around the house.
Lawns resume growth and perennial weeds are easy to see. Grubs are mature, and animals often dig for them. Boxelder bugs, Asian lady beetles, brown marmorated stink bugs, and cluster flies gather on sunny walls before moving indoors. Leaves left on thin turf keep light off the grass.
Salt and slush injure turf edges and evergreens along major roads. Where lawns meet woods, deer browse arborvitae and yew, and voles work under the snow at the base of young plants. Winter is the lower-risk season for pruning oaks and a practical time to plan the next growing season.
Tell us where you need service and what you're noticing. We'll follow up to discuss the property and next steps.
Request an assessment