Skip to content

Research & Guides

Spotted Lanternfly Articles

In-depth guides and state-by-state infestation reports — everything you need to understand and fight the spotted lanternfly in 2026.

Control & Identification Guides

State Guides

Pennsylvania: Ground Zero

Core Zone

The first US state confirmed in 2014, PA remains the epicenter. Full quarantine status, history, and expert control guidance.

New Jersey

Core Zone

Early to establish, NJ has one of the densest SLF populations. State program overview and what NJ homeowners should do now.

New York

Core Zone

From the Hudson Valley to Long Island — how SLF spread across NY and what the state is doing about it.

Maryland

Core Zone

MD's entire border with PA is a hotspot. Includes the Eastern Shore status and state agency resources.

Virginia 2026

Active Spread

Virginia SLF status for 2026 — Northern VA, Shenandoah, and the rapidly expanding infestation zone.

Delaware

Core Zone

Small state, big problem — all three counties are now under quarantine. Delaware resources and action plan.

Connecticut

Active Spread

CT confirmed SLF across multiple counties. Here's the current spread map and what CT residents should know.

Massachusetts

Active Spread

SLF arrived in MA and is spreading. Current confirmed counties, reporting guidance, and state program details.

Rhode Island

Active Spread

The smallest state has confirmed SLF. RI's response, current extent, and what residents can do.

Ohio

Active Spread

Ohio is the leading Midwest state for SLF spread. Multiple counties confirmed — what Ohio homeowners and farmers need to know.

Michigan

Active Spread

Michigan's SLF status, confirmed counties, and what the state's agricultural sector is doing to respond.

Indiana

Active Spread

SLF has reached Indiana. Current county status and guidance for Hoosier homeowners and grape growers.

Illinois

Active Spread

Illinois confirmed SLF — likely via cargo transport. Chicago metro area is high-risk. What Illinois residents need to know.

West Virginia

Active Spread

WV shares a border with PA and VA — SLF has moved in. Current county detections and state response.

North Carolina

Active Spread

SLF is in NC and moving into wine country. What NC vineyard operators and homeowners should do now.

Tennessee

Active Spread

Tennessee's SLF detections, confirmed areas, and what the state's response looks like for 2026.

Kentucky

Active Spread

SLF confirmed in Kentucky. Horse country, bourbon vineyards, and orchards are all at risk. State guidance here.

Georgia

Active Spread

Georgia's southernmost SLF detections — what it means for the Southeast and what GA residents should do.

Washington DC

Heavy Infestation

SLF is now confirmed across all 8 DC wards. Metro corridors, alley ToH networks, and Rock Creek Park are hot zones.

Stay Ahead of the Season

Get a free weekly briefing on spotted lanternfly activity near you — including season forecasts, control tips, and sighting alerts from your area.

Join Free — Weekly Fight Briefing