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Learn about the different New Jersey pests that you need to look out for. Information includes identification, behavior, risk and concerns, as well as signs of an infestation

Learn about the different New Jersey wildlife that you need to look out for. Information includes identification, risks, and signs of an infestation.

Read our articles on what concerns home and businesses owners should be aware of in every season.

Mice are small rodents, typically light brown or gray. in color with a cream belly. They are creative jumpers and climbers that often build nests in dark and hidden areas, often with insulation from the house. They are curious and nibble on cereals, seeds, nuts, fruits and grains. Infestations can quickly grow out of control as they breed rapidly– a single female can produce up to 35 offspring per year. They also carry diseases (like salmonella), contaminate food with droppings, and can trigger allergies or asthma. Common signs of an infestation include gnaw marks, droppings, urine odors and damaged food containers; a single mouse sighting can indicate that there are more nearby.

Rats are medium-sized rodents that can be black, brown or gray in color. They are extremely active– jumping, climbing, running, swimming– and capable of squeezing through a hole the size of a quarter. These nocturnal animals often nest in basements, rafters, attacks, or piles of debris and eat a wide variety of food like meat, fish, cereal, and even pet food. They enter homes year round to search for water. They pose serious risks by gnawing through property (even pipes), spreading diseases such as salmonella and rat-bite fever, and carrying fleas. Signs of an infestation include capsule-shaped droppings, gnaw marks, and oily or greasy footprints.

Ants are insects that are often black in color, with more than 25 species known to infest homes. They live in large underground colonies led by a queen and come indoors in search of food and moisture. While they will eat almost anything, they are particularly attracted to sweets. They will inflict painful bites that may cause welts. Signs of an infestation include visible mounds or an unpleasant odor when they are disturbed.

Carpenter ants are large black, red, or mixed-colored insects that tunnel through wood to build their nests. They often enter homes through cracks, plumbing, or electrical openings. They prefer softer, damp, or rotting wood damaged by moisture, mold, or fungus. Their bites can be painful due to the formic acid they inject, and over time their excavation can weaken structural wood. Signs of an infestation include small piles of sawdust near wooden areas and a vinegar-like odor when disturbed.

Bed bugs are small brown insects that turn red-brown after feeding, while their nymphs are almost colorless. They hide in beds and fabrics, feeding on humans at night. They spread quickly in places with many people, such as apartments or hotels. Their bites cause itchy red welts. Infestations can be identified by small blood spots on sheets or skin rashes.

Termites are wood-destroying insects that can be recognized by their pincher-like jaws. They chew nonstop through wood, flooring, and even wallpaper, with mature colonies ranging from 60,000 to over two million workers. They swarm in the spring, and they’re especially attracted to slab homes, which heat up from the earth below. Termites cause massive structural damage, costing an estimated $6.8 billion annually in property repairs. Signs of an infestation include mud tubes on exterior walls, softened or hollow-sounding wood, and bubbling paint.

Cockroaches are reddish-brown, oval-shaped insects that thrive in warm, moist, and dark environments. Often migrating indoors from sewers or drains in search of food, they infest kitchens, pantries, and food prep areas, feeding on anything from decaying scraps to uncovered pet food. They can trigger allergies and asthma—especially in children—and are known to spread over 30 different kinds of bacteria. Signs of an infestation include egg capsules, a strong musty odor, and the sight of roaches running across floors or walls.

Mosquitoes are thin, winged insects with long legs; over 170 species are found in North America. They thrive in warm, wet environments and are most active at dawn and dusk, feeding on human blood. Their bites leave behind itchy red welts, and they are known carriers of dangerous blood-borne diseases. Signs of a mosquito problem include buzzing insects and eggs laid on standing water.

Fleas are tiny reddish-brown insects with long legs that feed on the blood of pets and wildlife. These parasites can live up to 100 days and produce as many as 2,000 offspring, so infestations spread quickly. Their bites often leave itchy welts with a halo at the center, and they can transmit diseases to their hosts. Signs of an infestation include pets scratching excessively, hair loss with small bumps, and tiny black specks (flea dirt) in fur or bedding.

Ticks are flat, oval-shaped arachnids that darken as they feed on blood. They hide in grass and shrubs, and latch onto pets, wildlife, or people. They spread quickly, with females capable of laying up to 3,000 eggs. They transmit serious diseases such as Lyme disease, Rocky Mountain spotted fever, and others, and can cause blood disorders. A common sign of a tick bite is a bullseye-shaped mark on the skin.

Spiders are arachnids that come in many colors; over 3,000 species found across North America. They spin webs to trap insects and often move indoors seeking warmth during colder months. While most are harmless, some bites can cause symptoms such as increased blood pressure, sweating, or nausea. Signs of an infestation include visible webs and egg sacs around the home.

Wasps are yellow and black or brown insects. They build nests in the spring, often in porches, ceilings, or attics. Each colony is led by a single queen that lays eggs for the entire group. They will sting aggressively if they feel threatened. Signs of an infestation are most often visible nests or hives around the property.
This information is provided for educational purposes and is based on reputable sources such as the National Pest Management Association (NPMA) and the Centers for Disease Control and Prevention (CDC). For advice tailored to your situation, please contact us directly.

Raccoons are nocturnal mammals with a distinct black mask. They can damage shingles, wiring, and insulation while spreading diseases like rabies and roundworm. Signs include torn siding, droppings, nesting debris, and raided trash cans.

Squirrels often invade attics in winter, chewing siding, wires, and insulation. They damage heating systems and bird feeders alike. Signs include scurrying in walls, chewed cables, holes in siding, and nests in attics.

Mice and rats are common invaders in shades of brown, gray, or black. They gnaw through wood, wiring, even pipes, and spread diseases. Signs include droppings, urine odors, gnaw marks, damaged food containers, and nests.

Bats are nocturnal fliers, ranging from tan to black. Their droppings can carry fungi causing lung disease, and waste buildup may damage structures. Signs include visible droppings and spotting bats in or around the home.

Striped skunks are known for their foul odor and burrowing. They damage lawns, leave claw marks, and can transmit rabies. Signs include strong skunk odor, tracks, digging, and noises like stomping or chirping when disturbed.

Birds of many kinds can damage buildings and create health risks through droppings that carry pests, like mites and ticks. Signs include nests in gutters or vents, droppings on ledges, and unwanted entry into homes or attics.

Opossums are the only marsupial in North America. They den in attics or garages, damaging ductwork and insulation, and may carry rabies. Signs include messy nests, torn insulation, and direct sightings of the animal.

Groundhogs, or woodchucks, dig extensive burrows that damage gardens, crops, and even building foundations. They can carry ticks and rabies. Signs include gnawed wires, holes in lawns, and damaged gardens or crops.

White-tailed deer can devastate crops, trees, and landscaping. They spread ticks linked to Lyme disease and cause vehicle collisions. Signs include hoof tracks, eating plants, and seeing deer moving through your property.

Coyotes resemble small shepherd dogs with bushy tails. They prey on pets and livestock, which can pose risks in suburban areas. Signs include frequent howling, sightings near homes, as their hunting behavior is in pairs or groups.

Flying squirrels glide rather than fly, often nesting in attics. They cause odors, insulation damage, and sleepless nights with nocturnal activity. Signs include droppings, gnaw marks, and scurrying sounds in walls or ceilings.

Canada geese are black and tan with white cheek patches. They can be aggressive near nests. Their droppings create slip hazards and health concerns. Signs include green tubular droppings, large flocks, and tracks in soil or sand.
This information is provided for educational purposes and is based on reputable sources such as the National Pest Management Association (NPMA), The Internet Center for Wildlife Damage Management (ICWDM), The National Wildlife Control Operator Association (NWCOA), and the Centers for Disease Control and Prevention (CDC). For advice tailored to your situation, please contact us directly.
When the chill of fall arrives, it’s not just humans searching for warmth—pests and wildlife are also making plans for the winter. From tiny insects to furry critters, many creatures spend the fall season looking for food, shelter, and warmth. Unfortunately, your home might be their next destination.
Understanding what pests are most active in the cooler months—and how they get indoors—can help you take the right steps to protect your property before the first frost hits.
Brown Marmorated Stink Bugs Are Persistent
First detected in the United States in September 1998 in Allentown, Pennsylvania, the brown marmorated stink bug is a native of Japan that has become a serious nuisance. Known for damaging landscape plants, fruit trees, and crops, these insects begin migrating into homes as temperatures drop. They typically hide in attics, eaves, and wall voids, staying dormant until spring.
Flying Insects Move Indoors for Warmth
Fungus gnats, fruit flies, and other small flying insects often search for warmth in basements, crawl spaces, and garages before making their way into living areas. Once inside, they enjoy the consistent indoor climate—especially in kitchens and bathrooms, where moisture and food sources are easy to find.
Wildlife Seeks Shelter in Residential Areas
Cold weather drives wildlife such as squirrels, raccoons, and groundhogs to find shelter inside nearby houses. Common entry points include spaces under decks, sheds, and gaps in gutter lines. Once inside, these animals can cause significant structural damage.
Protect Your Home from Winter Pests
When outdoor food and shelter become limited, pests are more determined to move inside. Proactive pest prevention—through home sealing, seasonal maintenance, and prompt repairs—is the best defense against infestations. Acting before temperatures drop can save you from expensive damage and unwanted houseguests this winter.
A change in the seasons means a change in pest behavior. While the fall and winter months bring a welcome break from summer swarms, they also present a new set of challenges for homeowners. By knowing which pests to watch for and taking preventative measures early, you can enjoy a cozy, pest-free space all winter long.
At Pest by MD Pest Control, we offer a wide range of pest control services, including ant control, bed bug treatment, rodent control, termite control, and more. Our team of experienced professionals will work with you to develop a customized pest management plan that fits your unique needs and budget. Plus, we offer free inspections and estimates!
As temperatures drop, rodent activity increases in and around homes and businesses. Unfortunately, this change in the weather also raises the risk of Lyme disease—a serious illness transmitted through tick bites. Understanding the link between rodents, ticks, and Lyme disease is the first step in protecting your family and property.
The Connection Between Rodents and Lyme Disease
Why Rodent Control is Key to Lyme Disease Prevention
Reducing rodent populations directly lowers the number of ticks in your environment. Effective prevention requires addressing both pests at the same time. This means taking steps to eliminate rodent entry points, reduce harborage areas, and manage tick-prone zones around your property.
A Tailored Pest Prevention Solution
With over 20 years of experience, our team delivers custom solutions for:
Since no two buildings or environments are the same, we create tailor-made prevention plans that may include:
Protect Your Home, Family, and Pets
Fall is the perfect time to take action before pests settle in for winter. By combining rodent control with tick prevention, you can significantly reduce the risk of Lyme disease on your property.
At Pest by MD Pest Control, we offer a wide range of pest control services, including ant control, bed bug treatment, rodent control, termite control, and more. Our team of experienced professionals will work with you to develop a customized pest management plan that fits your unique needs and budget. Plus, we offer free inspections and estimates!

Even if you’re not currently dealing with a pest infestation, the risk never goes away—especially in the winter. As temperatures drop, rodents and insects look for warmth and shelter, making homes and businesses the prime targets for infestation.
To protect your space, you’ll need to take proactive winter pest control measures before the cold weather drives pests inside. Here’s how to get started.
Essential Winter Pest Prevention Tips
Follow these recommended steps to reduce your chances of a winter pest invasion:
Signs of a Winter Pest Infestation
Watch for these common signs that rodents or insects may already be in your home:
Many homeowners don’t notice a pest problem until it’s too late, and significant damage has occurred. Rodents, termites, and other pests can cause harm before you see them.
Why Professional Pest Control Matters in Winter
If you notice suspicious signs—or want to ensure your home is secure—it’s wise to hire a licensed pest control professional. We can:
Don’t wait until it’s too late. Protect your home this winter with professional pest prevention and timely maintenance. Acting now can save you from costly repairs, and unwanted guests, when the temperatures drop.
At Pest by MD Pest Control, we offer a wide range of pest control services, including ant control, bed bug treatment, rodent control, termite control, and more. Our team of experienced professionals will work with you to develop a customized pest management plan that fits your unique needs and budget. Plus, we offer free inspections and estimates!
As winter gives transitions to warmer weather, we see the emergence of pests that have been waiting for the warmth. Early spring weather, excess moisture, and the surrounding landscape can all influence how and when these insects appear.
Here are some of the most common spring pests you may encounter in New Jersey and how to spot them before they cause damage.
Termites Are a Hidden Threat
“Beware the Ides of March” may have been written by Shakespeare, but in the pest control world, it’s also a timely warning for termite emergence. As environmental conditions improve, the reproductive members of termite colonies—known as swarmers—establish new colonies.
Many homeowners and business owners discover a termite problem when they find hundreds of flying insects near windows and discarded wings scattered on floors or window sills. By this stage, termites may already be causing significant hidden damage.
Carpenter Ants Destroy Damaged Wood
Carpenter ants are another wood-destroying insect, but unlike termites, they don’t consume wood. Instead, they carve out galleries in rotted or softened wood to build nests.
One of the most common warning signs is piles of sawdust (frass) suddenly appearing in areas that were previously clean. This sawdust is the byproduct of their tunneling activity. If left unchecked, carpenter ant colonies can grow rapidly, which weaken structural elements of the building over time.
Mosquitoes Are Busy Breeding
Mosquitoes are a persistent problem in New Jersey, and the state of early spring can indicate the severity of the summer mosquito season. Warmer temperatures and excess moisture allow mosquito eggs to hatch earlier, which gives them more time to multiply.
Breeding often begins in standing water found in gutters, birdbaths, plant saucers, and low-lying areas in the yard. Once their numbers spike, they can become a major nuisance and a health concern due to their ability to transmit diseases.
Why Early Spring Pest Control Matters
Spring pests are highly adaptable, and adjust their habits to match both weather conditions and available resources. Taking proactive steps—such as scheduling inspections, sealing entry points, and addressing moisture issues—can help prevent infestations before they start.
Don’t wait until pests take over. Early detection and professional treatment are the best ways to protect your home or business from costly damage and health risks.
At Pest by MD Pest Control, we offer a wide range of pest control services, including ant control, bed bug treatment, rodent control, termite control, and more. Our team of experienced professionals will work with you to develop a customized pest management plan that fits your unique needs and budget. Plus, we offer free inspections and estimates!

As summer settles in, insect activity reaches its peak. Warmer weather pulls pests out of diapause—a dormant state many insects enter during colder months—triggering rapid colony growth, increased foraging, and, in many cases, home invasions.
From ants invading kitchens to bees and wasps buzzing around backyards and ticks lurking in residential yards, understanding pest behavior this season can help you protect your home, family, and pets.
Ant Infestations
In New Jersey, common ant species include:
Ants are opportunistic feeders. Once a scout ant discovers a food source—like a forgotten piece of fruit—it sends a chemical signal to guide other colony members. Within hours, an entire structure can experience an ant infestation.
Bees and Wasps
Yellow Jackets, Carpenter Bees, and Honey Bees are all active in the summer. While bees—especially honey bees—play a vital role in pollination and are generally non-aggressive, wasps are predatory, territorial, and often aggressive.
Fleas and Ticks
Wildlife moving through residential areas can introduce fleas and ticks to your yard. In New Jersey, the deer tick is most common and is a primary carrier of Lyme disease. These pests often hide in bushy, wooded, or grassy areas, but they’re not uncommon in suburban lawns and gardens.
Why Spring Pest Control is Essential
Summer is a time of rapid pest activity, and infestations can escalate quickly if left unchecked. By identifying problem areas early and working with a licensed pest control professional, you can prevent costly damage, protect your health, and enjoy the season without unwanted intruders.
At Pest by MD Pest Control, we offer a wide range of pest control services, including ant control, bed bug treatment, rodent control, termite control, and more. Our team of experienced professionals will work with you to develop a customized pest management plan that fits your unique needs and budget. Plus, we offer free inspections and estimates!
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