By Jeff Goldman | NJ Advance Media for NJ.com

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An adult with wings spread shows the colorful hind wing of the spotted lanternfly.

Holly Raguza, Pennsylvania Department of Agriculture

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The spotted lanternfly (Lycorma delicatula) is a one-inch long invasive insect native to East Asia that was first found in Pennsylvania in recent years. While it has two pairs of wings, the lanternfly is a strong jumper and hops more than it flies.

The lanternfly is considered an invasive species and a major threat to fruit and timber crops, the Pennsylvania Department of Agriculture says. Grapes, apples, stone fruits such as cherries and the hardwood industry are all at risk.

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How are lanternflies destructive?

Trees targeted by lanternflies develop weeping wounds as the insects feed on the sap. The sap then attracts other insects to feed, notably wasps and ants. Adults lay egg masses in the late fall on host trees and smooth surfaces nearby.

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What does a lantenrfly look like?

The adult lanternfly is roughly an inch long and 1/2-inch wide. One set of its wings typically are grey with black spots, while the second set have patches of red and black with white band. Lanternflies have a yellow abdomen with black bands.

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Where does the spotted lanternfly come from?

The lanternfly is native to China, India, and Vietnam. It was detected in South Korea in 2004. The first confirmed sighting in Pennsylvania took place in 2014 in Berks County, Pennsylvania.

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How close to N.J. have lanterflies gotten?

They have spread to 70 towns in six eastern Pennsylvania counties (Berks, Bucks, Chester, Lehigh, Montgomery and Northampton).

None have been found in New Jersey, but officials said they will be keeping a lookout along the Delaware River for signs the lanternflies have made it across the river.

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Two egg masses on tree bark.

Holly Raguza, Pennsylvania Department of Agriculture

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What should I do if I see a spotted lanternfly?

Anyone who finds a suspected lanternfly should try to capture it and put it into a vial filled with alcohol to kill and preserve it, or at least take a good picture of it, Penn State researchers say.

Report it to the Pennsylvania Department of Agriculture (PDA) by emailing to: badbug@pa.gov or call the Invasive Species Hotline at 1-866-253-7189.

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What are the signs of lanternyfly activity?

Nymphs first feed on small plants and vines in the spring. After they mature to adults, they start feeding on trees. Sap oozes from plant tissue after the lanternfly pierces plant tissue with their mouth. Wasps, bees and ants are often found around a tree a spotted lanternfly attacked.

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Any natural enemies?

A big problem is that birds appear to have little interest in the spotted lanternfly, Penn State researchers say.

No other predatory or parasitic insects have had much success in slowing lanterflies down, either.

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How have efforts gone to contain the lantern fly?

Officials in Pennsylvania estimate 1,010,751 spotted lanternflies have been controlled as of Sept. 27 through a tree banding program run by the state's department of agriculture.

A glue barrier is applied to the trunk of tree, which traps the pests.

In addition, officials say 1,532,755 lanternflies have been killed by scraping egg masses off trees.

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What else can be done to slow down lanternflies?

Early detection works best. Pennsylvania issued a quarantine in 70 towns. The quarantine restricts the movement of the following items:

brush, debris, bark, or yard waste

landscaping, remodeling or construction waste

logs, stumps, or any tree parts for firewood of any species

grapevines for decorative purposes or as nursery stock

outdoor household articles including recreational vehicles, lawn tractors and mowers,

mower decks, grills, grill and furniture covers, tarps, mobile homes, tile, stone, deck boards, mobile fire pits, any associated equipment and trucks.

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For more information on the lanternfly:

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Jeff Goldman may be reached at jeff_goldman@njadvancemedia.com. Follow him on Twitter @JeffSGoldman. Find NJ.com on Facebook.