Northeast region
Tree removal and tree care in Pennsylvania
Pennsylvania tree work is shaped by terrain and pests: steep, slide-prone hillsides in the west, nor'easters and tropical remnants in the east, and spotted lanternfly quarantines across much of the state. Private-lot removals usually need no permit; Philadelphia and Pittsburgh require one for street trees.
City guides in Pennsylvania
Spotted lanternfly feeds heavily on tree-of-heaven, an invasive that grows in vacant lots, along rail lines and in backyards across the state. Lanternfly weakens trees and coats everything below them in sticky honeydew, and the quarantine restricts moving firewood, brush and other debris out of quarantined counties without following state rules. That matters when a tree company hauls wood.
Older Pennsylvania cities have narrow rowhouse lots, alleys and overhead wires, so even a modest backyard tree may need to be lowered piece by piece. In and around Pittsburgh, steep lots and retaining walls are common, and removing large trees from slopes can change how a hillside drains.
Reviewed and updated
Lanternfly, storms and slopes in Pennsylvania
Spotted lanternfly
First confirmed in Berks County in 2014 and now quarantined across most of the state; tree-of-heaven is its preferred host.
Nor'easters and tropical remnants
Long periods of wind and rain, as with Ida in 2021, soften soil and topple shallow-rooted trees.
Steep slopes
Western Pennsylvania hillsides complicate access and can slide after heavy rain, taking trees with them.
Heavy wet snow and ice
Early and late-season snow on leafed trees breaks maples and pears.
Emerald ash borer
Has killed most untreated ash statewide.
Pennsylvania city guides
Philadelphia's dense rowhouse blocks and Pittsburgh's hillsides make for very different removal jobs. Both cities manage street trees, and spotted lanternfly and ash loss affect the whole state.
Street tree permits and rowhouse backyard methods.
Hillside removals and the Forestry Division's rules.
Philadelphia region, Pittsburgh region and the middle of the state
Southeast (Philadelphia and suburbs)
- Main pressures
- Lanternfly, tropical remnants, rowhouse access
- Typical work
- Backyard removals by hand or crane, tree-of-heaven control
Southwest (Pittsburgh)
- Main pressures
- Steep slopes, landslides, hillside volunteers
- Typical work
- Rigged hillside removals
Central and northern ridges
- Main pressures
- Spongy moth defoliation, hemlock decline, ice
- Typical work
- Removing trees weakened by repeated defoliation
Pennsylvania's maples, planetrees and invasive trees
- Tree-of-heaven
- Invasive; spotted lanternfly host; fast-growing and weak
- Red and Norway maple
- Very common; storm breakage and surface roots
- London planetree
- Large, long-lived city street tree
- Pin and red oak
- Big shade trees in older suburbs
- Black cherry and tuliptree
- Common native woodland and backyard trees
Pennsylvania's lanternfly quarantine and city rules
- Pennsylvania leaves private-lot removals to municipalities, and most of its 2,500-plus municipalities regulate only street trees, if anything.
- Spotted lanternfly quarantine rules restrict moving firewood, brush and other debris out of quarantined counties; businesses moving material in and out of the zone need a state permit.
- Philadelphia: a contractor needs a work permit from Parks & Recreation's Street Tree Management Division before pruning or removing a street tree.
- Pittsburgh: removing or cutting a tree in a public street needs a Department of Public Works permit, and private-contractor work must be supervised by an ISA Certified Arborist.
Sources (checked 2026-10-01)
Rules change and details depend on your exact property. Confirm with the city or county before work starts. This isn't legal advice.
A Pennsylvania tree and lanternfly calendar
- Winter
- Dormant-season pruning and removals; frozen ground helps on slopes
- Spring
- Lanternfly egg masses can be scraped from bark and destroyed
- Summer–fall
- Thunderstorms and tropical remnants; adult lanternflies active
Pennsylvania services by situation
Tree-of-heaven and declining backyard trees.
Crane work over rowhouses and on slopes.
Nor'easters and tropical remnants.
Ash and defoliation-killed trees.
Pennsylvania tree questions
Should I remove tree-of-heaven because of spotted lanternfly?
Often, yes. Tree-of-heaven is the lanternfly's favorite host and an invasive in its own right. It resprouts aggressively from roots when cut, so effective control usually combines treatment and removal rather than cutting alone.
Can a tree company haul wood out of a lanternfly quarantine county?
Businesses that move regulated material such as firewood and brush in and out of the quarantine need a state permit and must inspect loads. Ask your tree company how they handle it.
Is removing a tree from a steep slope different?
Yes. Equipment access is limited, wood often has to be lowered rather than dropped, and roots may be helping hold the slope. On steep or unstable ground, ask whether the stump should stay to keep soil in place.
Need tree help in Pennsylvania?
Call to speak with a local tree-service provider about removal, trimming, stumps or storm damage. Describe the tree and what it's near, and they'll explain the next step.