Latest News

Spotted lanternfly 4th instar nymphs. Photo: E. Swackhamer, Penn State
June 2, 2017

Lycorma delicatula, commonly known as the spotted lanternfly (SLF), is a new invasive insect in southeastern Pennsylvania.

Spotted lanternfly egg masses. Photo: Emelie Swackhamer
March 15, 2017

People can reduce the populations of spotted lanternfly on their properties by killing the overwintering eggs.

Female spotted lanternfly and her egg mass. Photo: Emelie Swackhamer
November 28, 2016

More than 300 people attended an update meeting about the invasive insect, the spotted lanternfly, on October 27, 2016 in Bally, PA.

November 8, 2016

A timeline of actions to take in the management of the spotted lanternfly.

Spotted lanternfly adults on Ailanthus. Photo: Emelie Swackhamer
August 24, 2016

The spotted lanternfly is an invasive insect that was first found in Pennsylvania in 2014.

First instar on black birch.
May 12, 2016

Penn State Extension is recruiting property owners to trap and destroy the spotted lanternfly in the quarantined areas of Berks, Bucks, Chester and Montgomery Counties. To participate, volunteers must own property with the preferred host Ailanthus altissima (tree of heaven) trees.

Spotted lanternfly egg mass.
April 6, 2016

The invasive spotted lanternfly has been found in four southeastern counties in Pennsylvania. We are trying to eradicate this potential pest. There is a quarantine order in place that prohibits movement of any living life stage of this insect to areas outside of the quarantine area.

November 6, 2015

The spotted lanternfly has now been found in one additional municipality in Berks County; an additional township in Montgomery County and has appeared in parts of Bucks and Chester Counties. The additional quarantined municipalities include Boyertown Borough, Berks County; Douglass Township, Montgomery County; Milford Township including Trumbauersville Borough, Bucks County; and South Coventry Township, Chester County.

Photo: PA Department of Agriculture
September 15, 2015

Harrisburg, Pa. — Berks County has another township under quarantine due to the Spotted Lanternfly. The invasive insect, which was new to the United States last fall, continues to impact the county.

Spotted lanternfly 4th Instar, which is the stage just prior to the adult.
September 1, 2015

Another Berks County township is quarantined in the fight to stop the spread of the Spotted Lanternfly, an invasive insect new to the United States that was first found in the area last fall.

July 14, 2015

Harrisburg, PA - As Pennsylvania Department of Agriculture officials continue their work with federal and local partners to confirm and eradicate the invasive Spotted Lanternfly in Berks County, the state announced today that it is expanding surveillance efforts to neighboring Lehigh and Montgomery counties. While there is no indication the pest has spread, officials believe this is a prudent, precautionary measure.

June 16, 2015

From County Connection ( Berks County Commissioner Christian Leinbach discusses the infestation of the Spotted Lanternfly in Berks County with Penn State Extension District Director Greg Gnatt and horticulture educator Emelie Swackhamer.

May 21, 2015

A first instar nymph of the spotted lanternfly, Lycorma delicatula, from the quarantine area in eastern Berks County, Pennsylvania.

Photo: Chuck Bargeron, University of Georgia, Tree of Heaven
April 24, 2015

We get many questions about the host plants used by Spotted Lanternfly. In most of the articles about Spotted Lanternfly there are references to “over 65 host plants”.

March 31, 2015

Since spotted lanternfly is known to be established in only a few properties in Eastern Berks County, and has the potential to severely impact a number of agricultural commodities, the Commonwealth of Pennsylvania, in cooperation with the United States Department of Agriculture is attempting to eradicate this new pest to North America.

Nymphal Lycorma delicatula. Taken from Park et al. 2009
March 30, 2015

In America we have never observed spotted lanternfly nymphs, so we don’t know first-hand about their habits or schedules. What we know is gleaned from research papers written by Asian scientists in the areas where spotted lanterfly is native.

An adult female (right) and male (left) spotted lanternfly
November 10, 2014

The spotted lanternfly is native to China, India, Japan, and Vietnam and has been detected for the first time in the United States in northeastern Berks County, Pennsylvania.

Lateral view of an adult Lycorma delicatula Photograph by Lawrence Barringer, Pennsylvania Department of Agriculture
November 6, 2014

Spotted Lanternfly, Lycorma delicatula, is a new threat to Pennsylvania and the United States. It lays egg masses of 30-50 eggs wherever there's a flat surface -- meaning that many home items easily transported can pack this pest and help it spread quickly.