The Sunshine Gardening Podcast

In episode 33 of the Sunshine Gardening podcast, host Kristin Hildabrand welcomes Dr. Jonathan Larson, an entomologist from the University of Kentucky Extension Service, to discuss the invasive species spotted lanternfly. This episode delves into the pest's characteristics, impact, and management strategies, first identified in Pennsylvania and now present in several states, including Kentucky.



Introduction to Spotted Lanternfly

* Dr. Jonathan Larson outlines the unique nature of spotted lanternflies, members of the fulgorid plant hoppers, and explains their invasive status and the threat they pose to over seventy plant species by feeding on them and excreting sticky honeydew, which leads to sooty mold.

Identification and Life Cycle:

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* The spotted lanternfly starts as black and white nymphs, transitioning to adults with striking patterns and colors that can sometimes be mistaken for butterflies or moths. Dr. Larson emphasizes their distinct appearance at various life stages, including a detailed description of adult lanternflies when their wings are displayed.

Adult Lanternfly Surrounded by Older Nymphs

Impact on Local Ecosystems and Agriculture:

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* While primarily harmful to grapevines and the invasive tree of heaven, the spotted lanternfly does not generally kill other trees but significantly impacts the enjoyment of outdoor spaces and has potential economic effects on agriculture, particularly the grape industry.

Spotted Lanternfly Spread and Detection:

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* Dr. Larson discusses the pest's introduction to the U.S., likely via imported goods, and its ability to spread by attaching to vehicles. He also advises on monitoring efforts and how the presence of the tree of heaven can indicate potential spotted lanternfly populations.

Management Strategies:

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* Management strategies include using contact insecticides, systemic treatments like dinotefuran (for professional use only), and creating trap trees treated with insecticides to control large populations in contained areas.

* To find a certified arborist in your area, visit the International Society of Arboriculture website at https://www.treesaregood.org/.

Preventative Measures and Community Efforts:

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* Eliminating the Tree of Heaven and participating in monitoring efforts like Kentucky Keepers are recommended. Dr. Larson stresses the importance of public awareness and community involvement in reporting sightings through designated channels.

Tree of Heaven Photo Source: Chuck Bargeron, University of Georgia

Resources and Further Support:

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* Various resources are available, including fact sheets and websites provided by state and educational institutions. Dr. Larson also encourages engagement with local extension...