Spotted Lanternfly is an invasive pest native to Japan, China, India, Korea and Vietnam, which was first discovered in Pennsylvania in 2014.
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While it prefers to feed on Tree of Heaven, nymphs will feed on a wide range of species, including grape vines and fruit trees. Capable of traveling only short distances on its own, people moving infested materials have aided its rapid spread.
Adult Spotted Lanternflies are approximately 1 inch long and half an inch wide, with large and visually striking wings. Their forewings are light brown with black spots at the front and a speckled band at the rear. Their hind wings are scarlet with black spots at the front and white and black bars at the rear. Their abdomen is yellow with black bars. Nymphs in their early stages of development appear black with white spots and turn to a red phase before becoming adults. Egg masses are yellowish-brown in color, covered with a gray, waxy coating prior to hatching.
IMA-jet 2(ee) for PA, MD, DE, NJ, VA
IMA-jet 10 2(ee) for PA, MD, DE, NJ, VA
ACE-jet 2(ee) Label for CT, DE, MA, MD, ME, NH, NJ, OH, PA, RI, VA, VT
Both nymphs and adults of spotted lanternfly cause damage when they feed, sucking sap from stems and leaves. This can reduce photosynthesis, weaken the plant, and eventually contribute to the plant’s death. In addition, feeding can cause the plant to ooze or weep, resulting in a fermented odor, and the insects themselves excrete large amounts of fluid (honeydew). These fluids promote mold growth and attract other insects.
A trunk injection of IMA-jet® using systemic injection equipment is recommended. To increase the resilience of the tree, we recommend a follow up application of NutriRoot® or Mn-jet Fe™. Mid-summer (July) treatments typically coincide with the arrival of 4th instar (red) nymphs and adults on host trees. SLF mortality occurs after ingestion, generally within a few days of treatment application, and continues for a full season. Adults may continue to migrate to attractive treated trees into the fall, but feeding is limited and honeydew and sooty mold production will decline.
A trunk injection of ACE-jet™ will also provide broad systemic control and protect against spotted lanternfly and helps reduce honeydew and sooty mold growth. Apply ACE-jet in the fall for late-season treatments.
Reference USDA APHIS
Photo credits Virginia Cooperative Extension