Rhode Island Wildlife Alert: The Dangerous Pests You Need to Watch Out For Right Now

From the first confirmed tick sightings to a major legislative push against invasive plants, here is what is on the move in the Ocean State this month.

1. The 2026 Tick "High Risk" Forecast

Health officials at the Metropolitan Mosquito Control District and RIDOH have issued a warning: 2026 is trending as a high-risk year for tick-borne illnesses.

• The Nymph Surge: While adult ticks have been active since March 9th, April marks the emergence of nymphal deer ticks. These are about the size of a poppy seed and are responsible for the majority of Lyme disease, Babesiosis, and Anaplasmosis cases in Rhode Island.
• Hotspot Alert: Washington County continues to have the highest incidence rate in the state.
• Action Plan: After any outdoor activity, perform a thorough "tick check." Because nymphs are so small, feel for "stationary bumps" on the skin that don't easily brush off.

2. Black Bear "Bear Aware" Season

Rhode Island's black bear population is growing, and sightings are now common ambling through suburban neighborhoods. The DEM has launched a series of "Bear Necessities" public briefings (running through May 2026) to address the spike in encounters.

• The Conflict: Hungry bears are waking up and finding bird feeders and unsecured trash. Once a bear associates your yard with an easy meal, it becomes a "nuisance bear" and loses its natural fear of humans.
• The Rule: Take down bird feeders immediately. Secure your trash in a garage or bear-proof bin. In Rhode Island, preventing habituation is the only way to ensure both human and bear safety.
• Event: If you want to learn more, the Jesse M. Smith Memorial Library is hosting a free "Bear Aware" session on May 14, 2026.

3. Spotted Lanternfly: The Egg-Scraping Deadline

The 2026 Spotted Lanternfly Summit confirmed that Rhode Island is in a critical management phase. As of mid-April, the "mud-like" egg masses are nearing their hatch date.

• The Threat: These pests target specialty crops, hardwoods, and ornamentals. They excrete a sticky "honeydew" that promotes black sooty mold, which can kill your backyard landscaping.
• What to Look For: Check smooth surfaces, rusted metal, and the Tree of Heaven (a primary invasive host) for gray, cracked egg masses.
• Action: Scrape the eggs into a bag of rubbing alcohol before they hatch into tiny black-and-white nymphs later this month.

4. The 2026 Invasive Plant Management Bill

Rhode Island is currently the only state in New England without a prohibited plant sale list, but that is likely to change. In April 2026, testimony was presented in support of Bill S2353, the RI Invasive Plant Management Bill.

• The Targets: Japanese Barberry, Norway Maple, and Multiflora Rose.
• The Danger: Beyond crowding out native species, Japanese Barberry is a major public health hazard because it creates a humid microclimate that significantly increases the density of ticks in your yard.
• Action: If you are gardening this month, choose native alternatives like Inkberry or Winterberry instead of invasive shrubs.

5. Early Mosquito Activity

As of April 13, 2026, mosquito control activity is officially underway across the region. While a late-March snowfall slowed things down, the "cattail mosquito" model is projecting a high-volume year.

• The Hatch: Larvae are active in the water right now. While they won't emerge as biting adults for a few more weeks, the state is already beginning aerial larvicide treatments via helicopter and drone.
• Prevention: You can help by tipping over standing water in flowerpots, gutters, and old tires. Even a small amount of stagnant water can breed thousands of mosquitoes.

Summary Checklist for Rhode Island Residents

1. Scrape the Mud: Destroy any Spotted Lanternfly egg masses before the nymphs emerge in late April.
2. Bear-Proof the Yard: Bird feeders should be down and trash should be secured to prevent habituation.
3. Tick Hygiene: Use DEET or Picaridin and do a full-body check after walking in wooded or grassy areas.
4. Avoid Prohibited Plants: Support the new 2026 legislation by choosing native plants for your spring landscaping.