An invasive pest is putting one of New York’s most valuable crops at risk — and local experts want residents to know what to watch for.
Cornell Cooperative Extension of Seneca County is hosting a free online webinar on Monday, November 3, to explain the growing threat of the spotted lanternfly (SLF), its impact on grapes, and its link to another invasive species: the tree-of-heaven.
Big risk for the wine and grape industry
The spotted lanternfly doesn’t bite or sting, but it feeds on plants — and grapes are a favorite target. Experts warn that if left unchecked, it could severely damage New York’s $15 billion grape industry, which includes nearly 470 wineries and 900 vineyards. Pennsylvania vineyards were hit hard after SLF arrived there in 2014.
“Spotted lanternflies can’t survive long without a plant host,” said event organizers, “but their sheer numbers and feeding habits are already causing serious concern.”
The webinar will cover how SLF behaves, why it’s tied to the spread of tree-of-heaven (TOH), and what grape growers and residents in the Finger Lakes should know moving forward.
What to expect from the event
The session runs from 6:00 to 7:15 p.m. on Zoom and registration is required at www.senecacountycce.org. Anyone without internet access can call (315) 539-9251 ext. 1009 to register by phone.
Speakers will include:
- Brian Eshenaur, Cornell Integrated Pest Management
- Hans Walter-Peterson, Viticulture Specialist, CCE
- Emily Rojik, Forestry & Wildlife Educator, Penn State Extension
- Lydia Martin, Invasive Species Program Manager, Finger Lakes PRISM
Tree-of-heaven, the preferred host of adult lanternflies, will also be a key focus. The aggressive, fast-growing tree often serves as an early indicator of SLF presence in new areas.
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