Spotted Lanternflies Established Across All Rhode Island Counties
State officials have confirmed the invasive insect has now spread to every county throughout Rhode Island.
Updated on Sept. 22, 2026 in Botany
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Spotted lanternflies have officially established populations in all five Rhode Island counties, marking significant growth over the past year. Infestations are heaviest in eastern Kent, eastern Providence, and Bristol counties, where the pests continue to threaten agricultural food production.
Why it matters
These insects are broad-spectrum pests that pierce the vascular systems of various plant species to feed, posing a major risk to local agriculture. Their presence, often signaled by sooty mold growth, has forced officials to implement widespread monitoring and reporting requirements.
The spotted lanternfly has reached all 5 Rhode Island counties, with the highest concentrations currently found in eastern Kent, eastern Providence, and Bristol counties.
The players
Newport Vineyards
This agricultural entity is a significant vineyard based in Rhode Island that is currently monitoring for the presence of the invasive insects.
The details
The insects damage vegetation by feeding on the vascular systems of plants, and their presence is often confirmed by the development of sooty mold. Residents are encouraged to actively assist in control efforts by scraping egg masses off surfaces and utilizing the state reporting platform.
Timeline
The spotted lanternfly population saw growth over the past year.
Newport Vineyards began its grape harvest this week.
Newport Vineyards will hold its Harvest Festival on Oct. 25, 2026.
The Big Picture
This state-wide establishment follows the broader monitoring and containment patterns set by the USDA APHIS Spotted Lanternfly Management Program. The expansion of these populations necessitates continued regional coordination to mitigate the threat to local agricultural viability.
Residents can tangibly reduce local lanternfly populations by scraping egg masses from surfaces found in their yards or neighborhoods. These manual control efforts are critical to protecting local agricultural crops and garden health throughout the season.
The takeaway
Early detection and physical removal of egg masses remain the most effective methods for private citizens to combat these agricultural pests. Constant vigilance is required as the insects continue to utilize a wide variety of local plants for survival.
What happens next
Newport Vineyards will hold its Harvest Festival on Oct. 25, 2026.
Further reading
For more information on invasive species management in the state, visit the Rhode Island Botany section.
Source note: This article includes information reported by EastBayRI.
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