There is one generation of SLF per year in Pennsylvania (Figure 1). Use our management decision guide to determine which actions are best to take.įigure 1. ![]() Manage SLF on your property by promoting plant health, scraping eggs, using traps, and using chemical control when appropriate.Slow the spread of SLF by checking your car and any outdoor equipment (outdoor furniture, mowers, firewood, etc.) when going in and out of the quarantine zone.Death has only been noted in tree saplings, tree-of-heaven, and grapevines. Some plants are at more risk than others (e.g., grapevines, maple, black walnut). SLF is a plant stressor that, in combination with other stressors (e.g., other insects, diseases, weather), can cause significant damage to its host.SLF is currently under quarantine in 34 counties in Pennsylvania, in addition to several other states.SLF is an invasive pest that feeds on a large variety of plant species, including those in the agricultural, timber, and ornamental industries, and backyard plants.This group of insects was named after “Fulgora,” the Roman goddess of lightning, because they were thought to be luminescent, like lightning bugs. Spotted lanternfly belongs to the insect family Fulgoridae, or planthoppers. ![]() Photo credit: Michael Houtz, Penn State Glowing Bugs? Nope. This guide will review important aspects of the biology and behavior of SLF and management options. ![]() It is currently considered to be primarily a nuisance pest in residential landscapes. SLF feeding is considered a plant stressor and may contribute to the long-term weakening of established plants and trees. While SLF feeding can stress plants and cause localized branch damage, it is not known to directly kill other plants. Heavy SLF feeding has contributed to the death of grapevines, the invasive tree Ailanthus altissima (tree-of-heaven, or TOH), and black walnut saplings. SLF feeds voraciously on many economically important crops like grapevines, hops, ornamental nursery plants, and several tree species. Spotted lanternfly (SLF), Lycorma delicatula, is an invasive planthopper that was first detected in North America in 2014 in southeastern Pennsylvania.
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