Longtree Tree Service is expanding its tree trimming and pruning services in Southfield, MI this fall as the Michigan DNR's oak wilt advisory and Longtree's dormant-season pruning calendar converge on the same two-month window. The DNR's April 13, 2026 advisory told Michigan residents not to prune or wound oaks between April 15 and July 15, and named winter dormancy as the safe pruning period. The DNR also identifies late June through September as when oak wilt symptoms typically appear, making this the last stretch to spot 2026 infections before leaf drop hides the evidence.
Michigan's dormant season runs roughly mid-November through mid-March. That window opens approximately eight weeks from now. Dormant-season crews book before the window opens, not after. Longtree Tree Service is scheduling Southfield and Lathrup Village assessment and pruning appointments now, while oaks are still expressing 2026 infection symptoms and before dormant-season capacity fills.
Both Southfield and Lathrup Village were recognized as Tree City USA communities in the Michigan DNR's March 26, 2026 announcement marking the program's 50th year. Longtree Tree Service is the ISA Certified Arborist Southfield MI team positioned to support that canopy through the pruning window the DNR's own guidance identifies as safest.
"The DNR's April advisory was clear: do not prune oaks during the high-risk window. The other half of that guidance is equally clear: dormant season is when the work should happen. That window opens in eight weeks. Booking now is what keeps it on a planned schedule rather than a rushed one."
— Longtree Tree Service
The Oak Wilt Pruning Calendar: Why September Is the Booking Month
Oak wilt spreads when sap beetles carry fungal spores into fresh pruning wounds during warm months. The Michigan DNR prohibits pruning or wounding oaks between April 15 and July 15, and its April 13, 2026 advisory reinforced that guidance statewide. That high-risk window has closed for 2026.
What the advisory also establishes is the positive case for dormant-season pruning. Work performed after beetle activity stops carries substantially lower oak wilt infection risk than the same work performed in spring or summer. For Southfield and Lathrup Village property owners with oaks needing structural pruning, crown thinning, or deadwood removal, the dormant season is not simply a preference. It is the period the DNR identifies as safest.
September makes that timing actionable. Infected oaks are still showing canopy evidence of 2026 infections now. Identifying symptomatic trees before leaf drop, documenting their condition, and booking dormant-season appointments in September produces a property-specific plan before the canopy evidence disappears and scheduling fills.
Southfield and Lathrup Village: Tree City USA Communities Entering the Dormant-Season Window
The Michigan DNR's March 26, 2026 Tree City USA announcement named both Southfield and Lathrup Village among Michigan's recognized communities, reflecting a documented commitment to urban tree canopy management. For property owners in both cities, the pruning decisions made this fall determine how their trees enter 2027: with structural concerns addressed and crowns thinned for wind resistance, or carrying deferred maintenance that another Michigan winter will work on.
Longtree Tree Service is based in Southfield and serves both communities with site-specific knowledge of local canopy conditions, species composition, and seasonal timing.
What Longtree Tree Service Delivers in Southfield and Lathrup Village This Fall
Tree Trimming and Pruning Services Southfield, MI
Longtree's ISA Certified Arborist Southfield MI team assesses crown architecture, structural integrity, deadwood, and oak wilt symptoms tree by tree. Fall findings connect directly with dormant season tree pruning scheduling in Michigan for the mid-November through mid-March window.
Oak Wilt Pruning Window Michigan
For oaks showing 2026 infection symptoms, Longtree documents findings before leaf drop and determines whether dormant-season pruning, root-graft trenching, or removal is the right response. Oak wilt pruning window Michigan scheduling is open now for work beginning at first frost.
Crown Thinning Southfield, MI
Crown thinning Southfield MI reduces wind resistance, removes crossing branches, and improves canopy light penetration. Scheduled for the dormant season, it carries lower oak wilt infection risk and produces cleaner structural results than the same work done during the growing season.
Tree Trimming Lathrup Village, MI
Longtree Tree Service serves Lathrup Village and Southfield across its Southeast Michigan service area. Tree trimming Lathrup Village, MI appointments for the dormant season are available now. To schedule, visit Longtree Tree Service at longtree.net.
Frequently Asked Questions
Why does the Michigan DNR recommend against pruning oaks between April 15 and July 15?
Sap beetles carry the oak wilt fungus into fresh pruning wounds during warm months. The DNR's high-risk window covers peak beetle activity. Pruning during dormancy substantially reduces that transmission risk.
When does Michigan's dormant pruning season begin?
Mid-November through mid-March. The window opens approximately eight weeks from now. Booking in September secures a position before capacity fills.
How do I know if my oak has oak wilt?
The DNR puts oak wilt symptom expression in the late June through September window. Signs include wilting and browning that moves rapidly through the crown. A certified arborist evaluation before leaf drop is the reliable way to distinguish oak wilt from drought stress or other causes of decline.
About Longtree Tree Service
Longtree Tree Service is a professional tree care company based in Southfield, Michigan, serving Southfield, Lathrup Village, and the surrounding Southeast Michigan region. The company provides tree trimming and pruning, oak wilt management, crown thinning, tree removal, and plant health care for residential and commercial properties in two DNR-recognized Tree City USA communities. To schedule a fall assessment or book dormant-season pruning, visit Longtree Tree Service at longtree.net.
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Contact
Longtree Tree Service
23800 Eight Mile W, Southfield, MI 48033
(248) 290-9417
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Source: 38 Digital Market News
Release ID: 2628902
