Are Spotted Lanternflies Disappearing From Montgomery County? Sort of.

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A spotted Lanternfly on a wiper blade from Oct. 5, 2020.
Image via Tom Gralish, The Philadelphia Inquirer.
A spotted Lanternfly on a wiper blade from Oct. 5, 2020.

Spotted Lanternflies seem to have disappeared or are traveling in much smaller numbers in Philadelphia and the surrounding counties.

The operative word is “seem to,” writes Frank Kummer for The Philadelphia Inquirer.

The lanternflies are still around us and spreading, but the numbers fluctuate from neighborhood to neighborhood.

“We have observed that areas can see a decline in population after several years of increase,” said Brian Walsh, of Penn State Extension. “We only have theories on the reason for reduced population presence and they range from plant host fitness decline to weather to predator activities.”

The bug has been pretty mobile after coming to North America in 2014, showing up in Berks County. Experts believe they can move miles in a single season.

They hitch rides on wheel wells and wiper blades and ride rail cars, spreading hundreds of miles.

That makes them hard to track and hard to define a geographical radius for the lanternfly.

Thirty-four of Pennsylvania’s counties are under quarantine. Lanternflies now blanket the state and are in New Jersey, Delaware, Maryland, New York, Connecticut, Ohio, Virginia, and West Virginia

And they still pose threats to vineyards and fruit crops.

Read more at The Philadelphia Inquirer about missing spotted lanternflies.

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