APARTMENT FIGHTERS

YOU DON'TNEED A YARD

Spotted lanternfly is a city pest. Most of the best control actions work perfectly from an apartment, condo, or urban rowhome.

For renters, condo owners, and apartment dwellers

No yard? No problem.

You can still fight the invasion from your balcony, fire escape, and sidewalk. DC, Baltimore, Philadelphia, and NYC have millions of renters — and apartment dwellers live in exactly the dense urban zones where SLF spreads fastest. Here's your complete playbook.

What You CAN Do

Five high-impact actions that work from any urban living situation — no yard, no car, no tools required.

Report Every Sighting

Report from anywhere you see SLF — balcony, fire escape, sidewalk, parking lot, office building. Your report helps researchers understand city-wide spread. Takes 60 seconds.

Why it matters: Apartment dwellers live in dense areas — your reports cover high-traffic zones researchers miss.

Report a sighting →

Squish On Sight

SLF are commonly found on building facades, sidewalks, parking lots, and benches. During adult season (August–October), they congregate on building exterior walls. Each one you squish is one fewer female laying 30–50 eggs.

Why it matters: No yard required. Every squish counts.

Log your kills →

Scrape Egg Masses

Egg masses are found on building walls, parking garage columns, benches, lamp posts, bike racks, and outdoor furniture. Scrape with a credit card or business card into a plastic bag.

Why it matters: Urban infrastructure is full of egg mass habitat. This is genuinely one of the highest-impact actions available — no tree or yard needed.

Egg mass guide →

Report Tree of Heaven

Many city alleys, vacant lots, and park edges have dense Tree of Heaven. You can map ToH without touching it — just report its location. This helps researchers and city agencies prioritize removal.

Why it matters: Your block-level ToH data goes directly to agencies managing city trees.

Map a ToH tree →

Educate Your Building

Print a flyer and post it in your building lobby, laundry room, or mail area. Tell your building manager about SLF — they may be able to treat common landscaping. Building apps, Slack, and email lists are high-reach channels.

Why it matters: A single informed building manager can trigger property-wide action that one resident never could.

Get the printable flyer →

Where to Look in Your Building & Block

SLF and their egg masses show up in predictable urban spots. Work through this checklist systematically — especially August through November.

Outside Your Unit

✓Balcony railing and furniture (especially August–October)
✓Window screens and sills
✓Exterior brick/concrete walls (adults congregate at dusk)
✓Building facade below the roof line

Building Common Areas

✓Lobby columns and window frames
✓Parking garage: concrete columns, pipes, and walls (egg masses year-round)
✓Bike storage areas
✓Trash/recycling enclosures (especially if near trees)

Your Block

✓Tree pits (the small squares of soil around sidewalk trees)
✓Lamp posts and sign posts
✓Park benches and metal fences
✓Construction scaffolding (perfect egg mass habitat)
✓Parked cars — check wheel wells if the car has been near infestation areas

Talk to Your Building Management

Your building management can make a real impact if they know about SLF. Here's what to tell them.

What to Ask For

→Request treatment of Tree of Heaven on or adjacent to the property
→Ask about inspection of common outdoor areas for egg masses
→Suggest posting the printable flyer in common areas for residents

Pro tip: Most building managers have never heard of SLF. A clear, calm heads-up with specific asks lands far better than a complaint. Use the template below.

Template Message

Copy & paste

Subject

Spotted Lanternfly in our building/neighborhood

Hi [Building Manager],

Spotted Lanternfly (SLF) is an invasive pest that's confirmed in our area. I wanted to flag that [our building / nearby trees / the parking garage] may have SLF activity or egg masses that could be contributing to the local infestation.

The good news is there are simple actions that make a real difference:
- Scraping egg masses from surfaces (takes 5 minutes, no chemicals)
- Treating any Tree of Heaven on the property (most common host plant)
- Posting an awareness flyer in common areas for residents

Resources: lanternflywatch.com/flyer (printable flyer) and lanternflywatch.com/guides/toh-id (Tree of Heaven ID guide).

Happy to share more info if helpful.

Thanks,
[Your name]

What You Can't Easily Do — and Who Can

Honest guide to what requires city or property owner action — and how you can still contribute data that makes that action happen faster.

❌

Spray trees in public rights-of-way — that's the city's job. Report tree issues to your parks department.

❌

Remove Tree of Heaven from city-owned property — report it to the city.

✅

But you CAN report both to us at /map and /map/toh — that data goes to city agencies.

Log Your Kills

Even without a yard, your kill count matters. Balcony squishes, sidewalk stomps, scraped egg masses — log them all.

Every kill logged contributes to the community count that shows the scale of citizen action. Urban renters are some of the most active SLF fighters — the data just needs to prove it.

Track My Kills →

What to Log

Sidewalk / pavement squishes

Building facade squishes (adults on walls)

Balcony or fire escape kills

Egg masses scraped — from walls, columns, street furniture

Parking garage finds (egg masses year-round)

Share With Your Neighbors

Apartment buildings are dense social networks. A single shared message or lobby flyer reaches dozens of potential fighters.

Weekly Fight Briefing

Season alerts, new guides, and weekly action prompts — personalized to your zip code. Free.