The spotted lanternfly has been steadily spreading northward, posing a serious threat to valuable crops, particularly grapevines. Experts at Cornell University warn that if no management strategies are implemented, the insect could lead to significant financial losses for grape growers. The pest has already caused economic damage in Pennsylvania, and researchers are concerned about its potential impact in New York’s key grape-producing regions.
Projected Financial Losses for Growers
Researchers have estimated that grape producers in New York could face losses of $1.5 million in the first year of infestation, escalating to $4 million in the second year and $8.8 million by the third year. These figures are based on data collected from two major grape-growing areas: Lake Erie and the Finger Lakes. The estimates were developed using information from local growers and agricultural specialists, as well as insights from Pennsylvania State University, which has studied the economic impact of the lanternfly in Pennsylvania.
Data on grape production and acreage have played a crucial role in understanding the potential losses caused by the spotted lanternfly. Agricultural experts emphasize the importance of these findings in helping growers recognize the severity of the threat. Brian Eshenaur, a senior extension associate, stresses that awareness and preparedness are essential for preventing significant economic damage to the grape industry.
How the Lanternfly Harms Vineyards
The spotted lanternfly damages grapevines by feeding on their sap, which weakens the plants and reduces their productivity. Additionally, the pest leaves behind a sticky residue that promotes the growth of a harmful mold, affecting both the quality and quantity of grapes. Although no major infestations have been reported in New York vineyards yet, the first sighting in the Finger Lakes in July 2024 has raised concerns among experts. Growers are being urged to stay vigilant and monitor their vineyards for any signs of the insect.
To combat the spread of the spotted lanternfly, researchers are now working on cost projections for different prevention and treatment strategies. By providing growers with this information, they hope to encourage proactive measures that could mitigate the pest’s impact. Early intervention will be key in protecting New York’s grape industry from the severe economic losses experienced in Pennsylvania.
The next step is for researchers to provide growers with projections for how much the different prevention and treatment strategies will cost.