A tree-killing pest is popping up in more places across Pennsylvania.
And now state officials are on the offensive, trying to stop the bothersome beetle in its tracks.
With abundant trees rising up from a tranquil setting, Nockamixon State Park in Bucks County lures people everyday.
Now, state environmental officials are hoping to lure something else: the emerald ash borer.
Where Emerald Ash Borer comes through you don't have any more ash trees, said Donald Eggen.
So, the Department of Conservation and Natural Resources is setting traps to spot the pests before they spot all the ash trees.
They're purple because the small, green metallic beetle is attracted to that color.
And they're smell like a stressed ash tree.
We're hoping that if there's an infestation nearby it'll smell that and bump into it, said Eggen.
The Emerald Ash Borer likely arrived in North America in wooden shipping crates from Asia.
It was first detected in 2002 in southeastern Michigan and quickly spread.
The tree-killing pest has now been found in 15 Pennsylvania counties.
In Pennsylvania alone, our forests are about 4-1/2% ash, said Eggen. That represents about 330 million ash trees.
Environmental officials are acting fast and urging folks to stop transporting firewood.
This is how this thing is moved around, said Eggen. People leave the firewood.