The Spotted Lanternfly Threat

The Spotted Lanternfly, an invasive planthopper from Asia, first detected in southeastern Pennsylvania in 2014, poses a significant risk to a wide range of plant species. Since 2014, it has spread to a number of states, including New York.

This pest targets plants and trees by feeding on their sap, weakening them significantly as well as disrupting their ability to photosynthesize. This can lead to significant structural damage to the trees on your property, and with enough time, can even kill them.

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Lifecycle and Identification of the Spotted Lanternfly

The Spotted Lanternfly completes its life cycle once a year, progressing through several distinct stages:

  • Egg stage: Females lay eggs in the fall in rows on surfaces like tree trunks and exterior furniture. Eggs are covered with a protective, mud-like coating that protects them from harsh winter conditions.

  • Nymph stage: In spring, these eggs hatch into black nymphs with white spots. Nymphs go through four stages of development, maturing from an entirely black and white color to a red, white, and black during development.

  • Adult Stage: In July, they emerge into adults, easily recognizable by their size of about 1 inch long and striking wings. Although their underwings have a bright red and black coloration, they usually feed with their wings folded so that only the gray-colored forewings are visible.

The Damage Caused by the Spotted Lanternfly

The feeding behavior of the Spotted Lanternfly causes heavy damage to plants manifested by:

  • Sap oozing, wilting, curling of leaves, and dieback of trees.
  • Excretion of honeydew, which encourages the growth of sooty mold that stains plants and surrounding surfaces, reducing plant health and appearance.

Tree Management for Pest Control

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