Spotted lanternfly season is back in Pennsylvania. The polka-dotted, gray-and-red-winged adult insects make their appearance each July and tend to hang around until December. It’s an unwelcome summer ritual that started in 2014 when the invasive pests were first detected in the U.S.
The Conversation U.S. talked to Flor Acevedo, an assistant professor of entomology at Penn State University, about the bugs and her research on how lanternflies are threatening the state’s vineyards and wine industry.
Does Pennsylvania have many vineyards?
Pennsylvania has more than 400 wineries with about 14,000 acres planted in vineyards, according to the Pennsylvania Wine Association. The industry generates about US$7 billion in total economic activity. Erie County, where I live, has about 70% of Pennsylvania’s vineyard acreage, with the rest scattered across the state.
What do lanternflies do to grapevines?
The spotted lanternfly feeds on many plants, but its preferred hosts are the Tree of Heaven, an invasive plant introduced to Philadelphia from China in 1784, and grapevines.
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