Participants: Charlotte Binns, Jasena Sareil, Anne-Jaffee Holmes, CJ Reilly, Rosemarie Gatzek, Joan Nenimmo, Maria Ralescu, Jeannie Elder, Laurie Friedman, Kathleen Baca, Lauren Glattly, Adrian Price=Whelan, Renee Shamosh, Melanie Solomon, Bill Estes, Sachin Hardas, Lori Fettner, Damian Chadwick
The meeting was held to discuss the increased presence of the Spotted Lanternfly (SLF) in Irvington and to educate residents on the SLF’s negative impact and effective ways to remove them without the use of chemicals.
Jasena Sareil explained that the GPTF has been receiving numerous reports on the sighting of Spotted Lanternfly nymphs. SFL is an invasive pest from Asia that primarily feeds on Tree-of-heaven (Ailanthus altissima) but can also feed on a wide variety of plants such as grapevines, hops, red and silver maple, walnut, sycamore, birch, Tulip tree, fruit trees and others. This insect negatively impacts New York's forests as well as the agricultural and tourism industries. SLF's feeding (sucking on sap) damage stresses plants which can decrease their health and in some cases cause death. As SLF feeds, the insect excretes honeydew (a sugary substance) which can attract bees, wasps, and other insects. 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.
NYS is asking its residents to kill the nymphs, adults, and egg masses when spotted.
In Irvington, we have mostly noticed them on the invasive non-native Tree-of-heaven and Porcelain berry, however, they can be also found on Black walnut, Silver maple, Sycamore, rose bushes etc.
Residents were encouraged to help remove SLFs without the use of chemicals as follows:
1. Squish them by clapping your hands together (gardening gloves help). Approach them from the back if possible. They get tired after about 3 jumps and pause for about 2 seconds so are easier to catch.
2. Step on them.
3. On thorny plants such as rose bushes, hose them down with a strong water pressure and squish / stomp them after they wash off.
4. Use a vacuum, just disconnect the plastic part for carpet/floor so that you can suck them in. If it is a larger trunk of a tree, they will start hiding on the other side so you will need to squish those with your hands. Once done, please put the vacuum bag in a zip lock bag and place it in the trash. Jasena Sareil brought a special vacuum that was provided to the GPTF by the Lower Hudson PRISM.
5. Plat milkweed, which is a crucial plant for the survival of monarch butterflies, but SLF die after digesting its sap.
6. Trap them – Traps can be purchased or made at home. Please also avoid using glue traps as they also kill beneficial insects as well as birds.
What we do not recommend: Unlike some other resources, we DO NOT RECOMMEND the use of any chemicals even a dish soap or vinegar solution as they negatively impact other wildlife. Birds / spiders are learning to eat SLFs and if they ingest them with these solutions on, they will die or get sick.
There is no need to panic. We will get a chance to remove Spotted lanternfly egg masses after they are laid in the late summer and into the early winter, with the majority of egg mass deposition occurring in October. These egg masses survive winter and hatch into SLF nymphs in the spring. These egg masses are the only stationary stage of the SLF, making them an easy target for removal. We will provide educational materials on how to remove egg masses once we start noticing them.
The need for professional removal of Trees-of-heaven was discussed as one of the major ways to address this issue with a special focus on the Old Croton Aqueduct where there is major infestation of TOH as well as Spotted lanternflies.]
At the end, there was a video played of a young student who created an effective homemade trap for SLFs on her beloved maple trees.
Residents were asked to report the sighting of the SLF to the Village of Irvington through this form so that the Village can gather data on this invasive species.
CJ Reilly brought alive SLFs in special tubes to show residents their current size and spoke about the number of TOHs removed from the Irvington Woods. CJ also spoke about other species that are negatively affecting the health of local native trees.
In summary, let’s all get to work with gardening gloves, our hands, feet, and vacuums. Each female can lay up to 100 eggs during its life cycle so every removal counts. We will get an opportunity to remove their egg masses when they start appearing and share educational materials on how to do so.
Helpful Resources:
DEC NYS: https://www.dec.ny.gov/animals/113303.html
PennState Extension Management Resources: https://extension.psu.edu/spotted-lanternfly-management-resources
Circle trap: https://extension.psu.edu/how-to-build-a-spotted-lanternfly-circle-trap
Teen’s successful trap: https://www.youtube.com/watch?v=yjOKIOOw1ZA
Management of Tree-of-heaven: https://extension.psu.edu/tree-of-heaven
Village of Irvington SLF Report: https://docs.google.com/forms/d/e/1FAIpQLSdyvVDtJ4PhPYgOYwTuZ2KkaXB6iQkDNvVrn-9NIxoAjbWDVQ/viewform?pli=1
Cornell : https://westchester.cce.cornell.edu/horticulture-environment/invasive-nuisance-species/invasive-pests/spotted-lanternfly
Small handheld and affordable vacuum for capturing SLF on Amazon here.