NHBugs

Protecting trees and forests

Spotted Lanternfly

Spotted lanternfly (Lycorma delicatula) is a recently introduced invasive insect, found in Pennsylvania, New Jersey, Delaware and Virginia. If it spreads to New Hampshire it could harm hardwood trees, forests and landscapes and agriculture. Be on the alert and report suspect spotted lanternfly. 

 

Adult spotted lanternfly, Photo credit: PA Dept. of Agriculture, bugwood.org

Spotted lanternfly background and risks

It spends its lifetime sucking plant sap from a wide range of host plants, but it prefers Tree of Heaven (Ailanthus altissima). Spotted lanternflies tend to congregate together. This mass feeding causes plant stress and decline. We are still learning about risks to plant health. Grapes and hops will likely be harmed, with potential negative impacts to other landscape and ornamental plants, fruit trees, and hardwoods. Feeding by spotted lanternfly results in build-up of sticky excreta which attracts wasps and other insects and causes black sooty molds.

View WMUR-TV Grow it Green aired 10/8/2019

Spotted Lanternfly Identification

Adult spotted lanternfly, Photo credit: PA Dept. of Agriculture, bugwood.org

Spotted lanternflies are gregarious and congregate together on host plants.
Photo credit: PA Dept. of Agriculture, bugwood.org