Suffolk County Faces New Tick Threat: How to Identify and Protect Against the Invasive Asian Longhorned Tick

Suffolk County residents are confronting a new and concerning threat to their outdoor safety: the invasive Asian Longhorned Tick (Haemaphysalis longicornis). First discovered in Suffolk County in 2018, this aggressive invasive species has quickly established itself across Long Island, adding to an already challenging tick landscape that makes the region one of the highest Lyme disease transmission areas in the United States.

Understanding the Asian Longhorned Tick Invasion

The Asian longhorned tick is indigenous to eastern Asia and is now an invasive species to the United States. This tick species was first reported at large in the United States after being discovered at a farm in Hunterdon County, New Jersey, in 2017, but surveillance studies captured the first Asian longhorned tick in New York state as early as June 2017.

What makes this species particularly alarming is its reproductive capability. Invasive Asian longhorned ticks can reproduce without mating through a process called parthenogenesis, meaning that female ticks do not need males to fertilize their eggs. A single female tick can produce up to 2,000 eggs at a time without mating, allowing them to multiply rapidly—hundreds of ticks can be found on a single animal, person, or area.

Identifying the Asian Longhorned Tick

Proper identification is crucial for Suffolk County residents. Asian Longhorned ticks are small in size, approximately 2.5mm to 3.5mm, and reddish-brown in color without any type of colored markings. They are small, reddish-brown ticks that measure about 3-4 millimeters long when unfed. Adults have a long, cylindrical body with a characteristic dark ridge along their back.

Key identifying features include:

• Adult Asian longhorned ticks are reddish-brown and approximately 0.1 inches (2.5 mm) long, and unlike native species of ticks, they do not have any markings or distinct coloration
• Along the sides of their bodies, Asian longhorned ticks have a row of pale-colored spots or splotches, which are a key distinguishing characteristic
• The key distinguishing characteristic can be seen when looking at the palps, which come to a sharp, outward point at the bottom where they meet the basis capituli
• The adult female grows to the size of a pea when full of blood

Where Asian Longhorned Ticks Are Found

These ticks are found in a variety of habitats, including meadows and grassy areas near forests. Longhorn ticks are more commonly found in tall grass and pasture environments more so than forest environments. Asian longhorned ticks are found in shaded locations where trees and short, woody brush plants are located, and longhorned tick adults may also be found in open, sunny locations like well-maintained lawns around homes.

In Suffolk County specifically, the National Park Service and Suffolk County Department of Health Services have confirmed findings of Asian longhorned ticks at Lloyd Harbor, William Floyd Estate, and Ocean Beach on Fire Island.

Health Risks and Disease Transmission

While the full extent of disease transmission by Asian longhorned ticks in North America is still being studied, there are important considerations for Suffolk County residents. In the U.S., it is still unknown the role this species has in the transmission of pathogens to animals or humans, and research is ongoing. To date, no Asian longhorned tick has been found to be infected with pathogens in North America.

However, in other countries, H. longicornis has been known to transmit Powassan virus, Anaplasma, Babesia and Ehrlichia. They will bite humans, pets, birds, livestock, and wildlife, though this tick appears to be less attracted to human skin than other native tick species.

Professional Tick Control: Your Best Defense

Given Suffolk County’s status as a high-risk area for tick-borne diseases and the addition of this new invasive species, professional tick control has become more important than ever. Suffolk County is one of the most tick-dense areas in the entire United States, and Long Island consistently reports some of the highest rates of Lyme disease in New York State.

For Suffolk County residents seeking comprehensive protection, working with a licensed tick control company Suffolk County provides the most effective approach to managing both native and invasive tick populations. Professional services can target the specific areas where ticks concentrate and provide season-long protection for your family and pets.

Lawn Master of Suffolk, located in Port Jefferson Station, NY, understands the unique challenges facing Suffolk County properties. With their focus on total lawn master renovation, they can provide comprehensive pest control solutions that address the growing tick threat in the region.

Prevention Strategies for Homeowners

Beyond professional treatment, Suffolk County residents should implement personal protection measures:

• Carefully inspect pets, yourself and other family members after being outside, keep your lawn well maintained, and wear long pants, high top socks, boots, and long-sleeved shirts as well as using tick repellent
• Use personal protection equipment (PPE), such as long sleeves and long pants; apply repellents such as DEET; and follow veterinarian-recommended tick prevention in pets and livestock
• Start seasonal programs in early-to-mid April, before peak tick season begins, as ticks become active when temperatures consistently exceed 40°F, which in Long Island often happens in late March

The Importance of Professional Identification

While Asian longhorned ticks have unique features, they can still be challenging to distinguish from other ticks, especially in their immature stages, so if you encounter a tick that you suspect may be an Asian longhorned tick, it’s advisable to consult with a local health or agricultural authority for proper identification.

Education is the first line of defense against this tick, and knowing that the tick exists in the area and taking samples for proper identification are first lines of defense.

Looking Forward

As Suffolk County continues to monitor and respond to the Asian longhorned tick invasion, residents must remain vigilant. Asian longhorned ticks are native to Asia, but have been detected in 19 states in the U.S. since the discovery of an established population in New Jersey in 2017, and re-analysis of samples shows the invasive species was present near New York city as early as 2014 and grew rapidly in the following years.

The combination of this new invasive species with Suffolk County’s already high tick burden makes professional tick control not just a convenience, but a necessary health protection measure for families who want to safely enjoy their outdoor spaces. By staying informed, implementing prevention strategies, and working with qualified pest control professionals, Suffolk County residents can protect themselves and their families from both established and emerging tick threats.