Spotted lanternfly is an invasive pest from Asia that poses a very significant threat to New York’s agricultural and forest health.
Adults and nymphs feed on sap of over 70 plant species but their preferred food source is Tree of Heaven (Ailanthus altissima). Spotted lanternfly can jump and fly short distances but they spread primarily through human activity. SLF lay eggs on firewood, furniture, stone and vehicles which are transported moving it to new areas.
Information from the NYS Department of Environmental Conservation states that ‘Nymphs are black with white spots and turn red before transitioning into adults. They can be seen as early as April. Adults begin to appear in July and are approximately one inch long and half-inch wide at rest, with eye-catching wings. Their forewings are grayish with black spots. The lower portions of their hindwings are red with black spots and the upper portions are dark with a white stripe. In the fall, adults lay one-inch-long egg masses on nearly anything from tree trunks and rocks to vehicles and firewood. They are smooth and brownish-gray with a shiny, waxy coating when first laid.’You will also view excellent photos of egg masses, as well as the different stages of development.
The best way to control spotted lanternfly is to prevent its spread. Learn to identify it and to report it right away. Always inspect outdoor items such as firewood, vehicles, and furniture for egg masses. If you visit states with Spotted Lanternfly, be sure to check all equipment and gear before leaving and scrape off any egg masses. If you believe you have found Spotted laternfly, take photos (including something for scale, such as a coin, or ruler) and send an e-mail to .