96: Spotted Lanternfly - Threat to California

The Spotted Lanternfly (SLF) is the newest agricultural invasive species in the United States. Originally from Asia, this insect feeds on plant sap from a broad range of hosts. Dr. Heather Leach, Extension Associate at the Department of Entomology at Penn State University has been a featured presenter at the Sustainable Ag Expo. Click below to listen to her research on the spotted lanternfly. 

Looking for the latest viticulture and technology from the world's top experts? The Sustainable Ag Expo brings together researchers and growers so you can earn continuing education hours and improve your business all while connecting with peers and agriculture companies. The 2022 Sustainable Ag Expo will be held from November 14 - 16 at the Madonna Inn Expo Center in San Luis Obispo.

Although it appears that SLF has been in the United States for some years, growers are now seeing adverse effects and report extreme vine decline and death. A major part of Heather’s research is around how to manage SLF. While a large number of insecticides are effective, the challenge is that population’s levels are highest during harvest. This restricts the insecticide use to products with low residuals and requires more applications. Alternative management trials with some promise include exclusion netting, cannon sprayers, building a border with insecticide-treated netting, and determining if there are predators already in the United States.  

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