![]() ![]() Fortunately, it appears as though lanternflies harboring on an injected plant feed less than lanternflies on untreated plants. The injections work well to protect the treated trees and shrubs but large populations of Lanternflies often continue to harbor (live) on the plant materials. These are both major benefits of soil injections. Also, the insecticide injected doesn’t wash off in the rain. Soil Injection only – Soil injection is done in the spring* – before damage is done to the trees and shrubs.We have evaluated the results of each method (and the combination of both) and here is what we have learned: It is important to use the right material to avoid disappointing results. ![]() There are many insecticides being used to treat spotted lanternflies however, they are not equal. Foliar spray– this is the process of spraying the tree with an insecticide.For the purpose of this article however, we will just be referring to insecticides for Lanternfly control. Just to clarify, Soil injection can also be used to distribute nutrients (fertilizer) and other beneficial materials to the root zone of plants. The roots absorb the insecticide and the material moves up, through the living parts of the plants and into the canopy. Soil injection – a process where an insecticide is delivered to susceptible tree or shrub through the roots of the plants.The two primary ways to effectively kill Spotted Lanternflies are: The good news is that, due to research performed by Penn State and other universities, we have learned a lot about how to control the lanternflies. As we learn more about this interesting but destructive pest, we will provide updates. Lanternflies are still considered an emerging pest and they are an unusual pest – which makes them harder to understand. Do your part to slow the spread by complying with the SLF quarantine relations.How to Treat the Spotted Lanternfly How to Treat for Spotted LanternfliesĪll information below is based on what we know about the Spotted Lanternflies at this time. In addition to Pennsylvania, SLF is also found in New Jersey, New York, Ohio, Connecticut, Maryland, Delaware, Virginia, and West Virginia. Counties within the quarantine zone include: Adams, Allegheny, Armstrong, Beaver, Bedford, Berks, Blair, Bucks, Butler, Cambria, Cameron, Carbon, Centre, Chester, Clearfield, Clinton, Columbia, Cumberland, Dauphin, Delaware, Fayette, Franklin, Fulton, Huntingdon, Indiana, Juniata, Lackawanna, Lancaster, Lawrence, Lebanon, Lehigh, Luzerne, Lycoming, Mifflin, Mercer, Monroe, Montgomery, Montour, Northampton, Northumberland, Perry, Philadelphia, Pike, Schuylkill, Snyder, Somerset, Union, York, Washington, Wayne, and Westmoreland. The quarantine affects vehicles and other conveyances, plant, wood, stone products and outdoor household items. The quarantine is in place to stop the movement of SLF to new areas within or out of the current quarantine zone and to slow its spread within the quarantine. SLF is currently found in 51 counties in Pennsylvania, all of which are under a state-imposed quarantine. ![]() The honeydew also builds up and promotes the growth for sooty mold (fungi), which can cover the plant, forest understories, patio furniture, cars, and anything else found below SLF feeding. The feeding damage significantly stresses the plants which can lead to decreased health and potentially death.Īs SLF feeds, the insect excretes honeydew (a sugary substance) which can attract bees, wasps, and other insects. It has a strong preference for economically important plants including grapevines, maple trees, black walnut, birch, willow, and other trees. The spotted lanternfly uses its piercing-sucking mouthpart to feed on sap from over 70 different plant species. If not contained, spotted lanternfly potentially could drain Pennsylvania’s economy of at least $324 million annually, according to a study carried out by economists at Penn State. SLF is a serious invasive pest with a healthy appetite for our plants and it can be a significant nuisance, affecting the quality of life and enjoyment of the outdoors. ![]()
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