Invasive Trees Are Taking Over Suffolk County — Is Your Property at Risk?
If you own property in Suffolk County, there’s a battle being waged in your backyard — and you may not even know it. Invasive tree species are quietly spreading across Long Island, threatening native ecosystems, damaging structures, and reducing property values. Understanding which trees pose the greatest threat and how to respond is one of the most important steps a homeowner can take right now.
The Invasive Tree Problem on Long Island
Long Island has a well-documented history with invasive plant species. In 2007, Nassau and Suffolk Counties became the first counties in New York State to take a key step in slowing the spread of invasive species by outlawing the sale, transport, distribution, and propagation of 63 invasive plant species. Despite this legislation, the problem has continued to grow. A NASA report placed the economic cost of invasive species in the United States between $100 billion and $200 billion. Locally, the damage is visible on nearly every street, woodlot, and residential property across the county.
Many of the trees growing on Long Island are highly invasive and non-native — commonly Chinese exotics brought here over 200 years ago. Today, most Long Island soils harbor viable seeds dispersed from their descendants via wind, birds, or mammals years to decades ago. Under the right circumstances — often sun exposure when land is cleared — these seeds will germinate and grow to out-compete native species.
The Most Threatening Invasive Tree Species in Suffolk County
Long Island’s invasive trees include the ubiquitous tree-of-heaven, Japanese angelica, Norway maple, and sycamore maple, plus some newcomers such as glossy buckthorn and Callery pear. Each of these poses a unique threat to your property and the surrounding environment.
- Tree-of-Heaven (Ailanthus altissima): Annually, female tree-of-heaven trees can produce 300,000 or more wind-dispersed seeds, which deposit on open ground and germinate by the hundreds or thousands in large patches for great distances downwind. The chemicals produced from the tree’s roots actually prohibit the growth of other plants nearby and can destroy native plant populations. They also have invasive root systems that can take over pipes and foundations. Making matters worse, tree-of-heaven is the preferred host of the spotted lanternfly, an invasive species that grows aggressively along roadsides, fence lines, and railroad corridors throughout Long Island.
- Norway Maple (Acer platanoides): When Norway maple escapes cultivation and invades natural areas, it reduces species richness and native tree regeneration by out-competing other trees and understory species for resources, creating dense shade canopies, and spreading rapidly through high seed production. The great quantities of seed it produces blow around the neighborhood and take root in minimally managed areas — fencerows, hedges, roadsides, and woodlands. This maple’s rapid growth rate, shallow water-gulping root system, and very dense canopy soon shade out anything else growing nearby.
- Callery (Bradford) Pear (Pyrus calleryana): The Callery pear was introduced into the United States as an ornamental flowering tree in the early 1900s, bred to produce sterile fruit. However, some cultivars can hybridize with other pears and produce fertile fruit, leading to widespread invasion into natural areas. Bradford pear trees are also notorious for their weak branch structure that splits and breaks during storms, making them a direct hazard to homes, vehicles, and power lines.
- Southern Pine Beetle: Beyond invasive tree species themselves, invasive insects compound the damage. Thousands of trees in Suffolk County have been cut down, ravaged by the invasive southern pine beetle — and homeowners are paying for it, with contractors working overtime to cut down thousands of infested trees.
- Spotted Lanternfly Damage to Native Trees: Hemlock woolly adelgid has been quietly devastating Eastern hemlock populations across Suffolk County for years — and hemlocks are one of the most common privacy and screening trees on Long Island properties. Spotted lanternfly has also arrived in Suffolk County, and it’s not going anywhere on its own.
How Invasive Trees Directly Harm Your Property
The threat from invasive trees isn’t just environmental — it’s personal. Invasive species can undermine the structural integrity of your landscape, damage your home’s foundation, clog drainage systems, and create serious safety hazards. Invasive vines and insects can weaken trees and make them less resilient in storms. Invasive plants can also cause erosion and displace natives that assist in shoreline stabilization. For Suffolk County homeowners situated near the coast, this is an especially serious concern.
Left unchecked, invasive trees can also devastate property values. As one Suffolk County homeowner facing the southern pine beetle crisis put it: “I’m losing property value on top of this. Who’s going to want to buy a property with thousands of dead trees on it?”
Why Professional Tree Services Are Essential
Dealing with invasive trees is not a DIY project. Tree and shrub removal addresses removing saplings defined as young trees four inches or less in diameter at breast height, but larger tree removal may require a town permit, and some trees may need to be debarked before cutting to prevent root suckers. Improper removal can actually accelerate the spread of certain invasive species, making a bad situation far worse.
That’s where a trusted, local professional makes all the difference. When you work with a qualified tree service suffolk county provider, you gain access to certified arborists who understand the unique ecology of Long Island and can identify, manage, and safely remove invasive species before they spiral out of control.
How Long Island Best Tree Service Can Help
Long Island Best Tree Service is a full-service Long Island tree company that has been providing top-notch residential and commercial tree services for homeowners and business owners across Long Island, New York City, Brooklyn, and the Bronx for more than 20 years. Based in Uniondale, NY, the company brings deep local knowledge and professional expertise to every job.
Their team of technicians receives extensive training to ensure that they deliver outstanding results, using the highest quality tools and equipment with the knowledge and skill to deliver fast, reliable results. They believe in transparent and competitive pricing and work with clients to ensure they receive the best value for their money.
Their team includes certified arborists who can assess tree health, identify potential hazards, and recommend the right care for your specific situation. Whether the issue is an aggressive tree-of-heaven cracking your foundation, a diseased Norway maple threatening your neighbors’ yards, or a storm-weakened Bradford pear looming over your roof, Long Island Best Tree Service has the tools and experience to address it safely and thoroughly.
The most expensive tree service call is the one you could have prevented. Regular maintenance identifies problems while they’re still manageable and affordable. Weak branches get removed before they fall on your roof. Diseased sections get treated before they spread to healthy parts of the tree.
Don’t Wait — Act Before the Damage Spreads
Invasive tree species don’t wait for a convenient time to cause damage. They grow aggressively, spread relentlessly, and become exponentially harder and more costly to manage the longer they’re left alone. Suffolk County homeowners who take proactive steps today — with the help of a qualified professional — can protect their property, preserve their landscape, and contribute to the health of Long Island’s native environment for generations to come.
Knowing that you have a reliable and trusted tree service company that you can call on in an emergency situation can provide you with peace of mind and alleviate any concerns you may have about potential tree-related hazards. Contact Long Island Best Tree Service today for a free estimate and take the first step toward protecting your property from the growing threat of invasive trees.
