Carpenter Ant Prevention This Fall

Carpenter ants are active in the fall

It can be hard to tell regular ants from carpenter ants. Chances are you’ve seen carpenter ants or even had them in your home without realizing it! Although they may seem like regular ants, carpenter ants can pose a threat to your home.

Most carpenter ant infestations happen in the spring and late fall. If you find carpenters in your home during cold months, it’s probably because they’ve taken up residence. Carpenters can do significant structural damage over time, so it’s important to find and deal with them quickly. Here’s everything you need to know about how to get rid of carpenter ants in fall and all year-round.

Carpenter Ants 101

Carpenter ants are one of the largest and most prevalent ants in Michigan. Most species resemble a larger version of a regular ant. They come in a variety of colors including combinations of black, red, dull yellow, grey, or brown. Adult specimens are usually between ¼ and ½ inches long. Carpenters may resemble termites, but they have darker bodies, narrower waists, bent antennae, and a rounded thorax.

Colonies of carpenters are divided into castes, each with different distinguishing characteristics and sizes. Worker carpenter ants have large mandibles or pincers. Swarmer ants have two sets of wings–hind wings and front wings – and are the reproducers of the species. A female swarmer will become a carpenter ant queen and be solely responsible for populating the hive with workers.  

Carpenters remain a problem because their colonies can grow large quickly. Large colonies can inflict structural damage on homes in relatively short periods of time.

Where to Look for Carpenter Ants

carpenter ants build their colonies into wooden structures that have been naturally hollowed out or dampened

Carpenter ants gnaw the wood they want to move into a compact, sawdust-like material. Spotting this transported wood dust is one of the only reliable ways to find carpenter ants. Be careful, hollowed out wood takes on a dry, smooth, almost sandpaper-like appearance and may collapse under strain.

Outside, carpenter ants usually build colonies in wood that’s already been hollowed out. Most outdoor “parent” colonies are found in rotting trees, tree stumps, roots, fallen logs, or other decaying wood. As colonies expand, they require “satellite” colonies to continue to support a growing population. These expansion efforts are usually what brings carpenter ants into a house in fall and spring.

Carpenter ants prefer to inhabit areas with poor air circulation, access to soil and the outdoors, and condensation. During fall, carpenter ants want to nest in areas where they can keep warm. You’ll probably find them in your

  • Basement
  • Attic
  • Crawl space
  • Foundation
  • Roof
  • Porch
  • Doors and windows
  • Wood chips
  • Older siding

What Carpenter Ants eat

Carpenter ants do NOT eat wood; they simply move it out of the way. They subsist primarily on protein and sugar.

Unlike termites, carpenter ants don’t eat the wood they infest. Instead, these ants subsist on proteins and sugars, which they obtain from a wide variety of sources including:

  • Insects
  • Meat
  • Pet food
  • Syrup
  • Honey
  • Grains
  • Jelly

Carpenter ants are opportunists and will eat almost anything else they can find. They’re particularly attracted to the honeydew secreted by aphids and scale insects.

Worker ants have been known to forage up to 100 yards away from their colonies to find food. The workers bring any food they find back to the colony, where it’s distributed among all members.

Carpenter ants also require a source of moisture to keep hydrated. Usually, a carpenter ant colony will establish its main nest near some source of moisture outside. Satellite nests need moisture, too, but not to the same extent as the main nest does.

Why do they want to get into my home?

carpenter ants swarm over soft wood.

In the fall, carpenter ants seek food, shelter and ideal building conditions.

Carpenter ants prefer to make their colonies in moist, soft wood. Moist wood provides enough water to sustain the colony while they expand. Soft wood is easier to chew through, allowing for faster expansion. Rotting or damaged wood is an ideal nesting site for carpenter ants. If you see carpenter ants inside during fall, they’re probably establishing a satellite colony in wood inside your home.

Do Carpenter Ant Bites Hurt?

Carpenter ants will bite in self-defense. Their larger size and strong mandibles make carpenter ant bites potentially painful. They can also spray formic acid into bites, causing further pain.

If you are bitten, keep the bite clean and treat inflammation with ice. If you experience a severe reaction, see a physician immediately.

How can I keep them away?

keep carpenter ants away from your home by preventing mold growth, humidity, and leaks

Remove any environment that carpenter ants are likely to nest in. Look for mold growth and decaying and/or damaged wood, particularly near the ground level. Pull out and replace any rotten siding, rip out old baseboards and trimming, and look for condensation buildup. Pay particular attention to the foundation, siding and trim in your basement. Keep a close eye out for wood damage and have it repaired as soon as you notice it.

A leaky pipe in your basement might be creating an ant utopia. Look for any plumbing leaks and repair them as soon as possible. Even if you don’t have leaks, check to make sure excess humidity isn’t creating condensation on pipes or walls. If it is, consider investing in a dehumidifier, or least check for drafts.

If you have ants already, your best method of eliminating them is to have a pest control technician locate and eliminate the nest with an insecticide.

 Michigan Ant Control for Home and Business

If you need some help managing a carpenter ant problem this fall or any time of year, give Griffin a call today. We’ll be able to tell you where the ants are, how they got in, why they want to be there, and how to get rid of them. A safer, more enjoyable winter is just one phone call away.

Do I Have Carpenter Ants?

Carpenter ant near the wall of a basement

Ants flying around inside your home may be the reproductive drones of a carpenter ant colony. Look for small, round excavation holes in wooden structures in your basement, crawl space, deck, or porch. Carpenter ants create these holes to discharge the sawdust-like wood shavings they produce while tunneling.

It can be frustratingly difficult to find conclusive signs that you have a carpenter ant problem. The ants tend to tunnel through deep or inaccessible sections of wood. Their tunnels tend to be impossible to spot until they start causing serious problems. By learning more about what ants are all about, however, you can be better at spotting them. This is what you should know about carpenter ants, including how to tell if you have them.

What are carpenter ants?

Carpenter ants (Camponotus spp.) are some of the largest and most common ants in Michigan. They’re also one of the most common home-invading pests in Michigan. Like other ants, carpenters live in large eusocial colonies where different castes perform different roles. Unlike most ants, colonies live inside wooden structures by hollowing them out from the inside. In the wild, they usually nest in decomposing trees, logs, or stumps. They can also tunnel through homes!   

Carpenter ant workers look like sugar ants, but they’re larger and have evenly-rounded thoraxes. Most workers are ¼ to ½” long. Carpenter ant drones are even larger, and they have flight-capable wings. Drones are often confused for termites, but you can tell them apart by looking at their antennae. Carpenter ants have distinctive “elbowed” (curving or “L-shaped”) antennae, whereas termites have straight, beaded antennae. You’ll probably see the ants crawling on or near wooden structures. 

Carpenter ants outside of an entrance to their colony

Why are carpenter ants a problem?

Contrary to popular belief, carpenter ants don’t actually eat wood. Carpenter ants tunnel through wooden structures to build large, complex “galleries” for their colony to live inside. As the colony grows, the ants continue to work their way deeper through the infested wood. In the meantime, the ants will continue to hollow out larger and larger segments of wood. Ant workers reduce the wood they tunnel through to a sawdust-like substance and transport it out of the colony. 

Obviously, hollowing out the inside of a wooden structure compromises its structural integrity. Over time, carpenter ants could seriously damage the wood they infest–and any structures that wood supports! If the ants hollow out enough wood, they could trigger the collapse of load-bearing structures such as support beams. Ant tunnels also tend to make wood more vulnerable to moisture accumulation and mold growth, which could lead to further problems.

Do I have carpenter ants?

The most obvious sign of a carpenter ant infestation is the presence of winged ants inside your home. If there are flying ants inside your home and it’s not mating season, then you probably have an infestation. Workers themselves may venture indoors during summer, but seeing them during winter is a bad sign. Look for workers around any exposed wooden structures, especially in naturally damp or humid parts of the home.

You should also look for small, circular openings on the surface of the wood. These holes are where worker ants expel the sawdust-like shavings they create when tunneling through the wood. If you find shavings or dust accumulating under these openings, your infestation is quite active. Remember: carpenter ants attack moist, humid, or damaged wood. If you’re worried you have an infestation, check wood that fits this description first.

Carpenter ants working on tunnels in wood

What can I do about carpenter ants?

Tunneling through wood dries out carpenter ants very quickly. Workers require a constant source of moisture to re-hydrate if they’re going to remain active. For this reason, the ants almost exclusively target wet or moist wood. If they can re-hydrate while they tunnel, they’ll never have to stop working on their colony. By making sure wood around your home is dry, treated, and protected, you’ll keep ants from preying on it.

First, look for and fix possible plumbing leaks inside and outside. Make sure your outdoor gutters, downspouts, and drains are direct water away from your home effectively. Find places where wood contacts the ground and cover that wood with plastic sheets or barriers. Trim down branches, shrubs, or other “bridges” carpenter ants could use to access your home. Inside, dehumidify your basement, crawl spaces, and other lower levels as well as possible. Replace any damaged or soiled wood ASAP.

 

The faster you find a carpenter ant infestation, the more potential damage you can prevent. Watch for these signs of infestation, but look out for the vulnerabilities that may lead to infestations, as well. Protect wooden structures in your home, keep them dry, and watch for cracks and gaps ants could exploit. 

If you’re worried you have carpenter ants in your home, don’t hesitate to give Griffin Pest Solutions a call. Our experts locate your ants, remove them, identify how they got in, and ensure they won’t get in again. If you see the telltale signs of carpenter ants, just call right away. We’ll make sure your home stays whole.

Carpenter Ants Come Marching In This Spring

The carpenter ants come marching in this spring

Carpenter ants get away with a lot, even for a pest. Whereas the termite inspires fear and indignation, most of the public doesn’t even consider the insidious carpenter ant. If someone had a termite infestation, they’d no doubt want it handled right away. Yet, despite the fact that carpenter ants destroy wood too, many infestations go unrecognized, much less treated!

We will not have it. We’ve warned you about the carpenter ant before, but now that spring is springing (kinda), the threat is real. This spring, thousands of carpenter ants are marching on your castle, and it’s up to you to stop them. That’s why we’ve put together this anti-invasion battle plan. Here’s everything you need to know to rout the rascally ruffians ready to rampage through your residency this spring.

What are they?

what are carpenter ants?Carpenter ants look like their sugar or pavement ant cousins, except bigger and darker. They’re typically brown or black and about ½ an inch long, though they could be red-and-black and even larger. Like most ants, carpenter ants are eusocial and live in a colony where members have specialized roles and characteristics. Unlike most ants, carpenter ants build their colonies by burrowing into moist wooden structures. Carpenter ant colonies could eventually inflict significant enough damage to compromise the structural integrity of the wood they inhabit.

There are three castes of carpenter ant: workers, drones, and queens. Worker carpenter ants build and expand the colony by cutting into and excavating wood to make “galleries” through it. Drones and queens are larger than workers, and have functional wings during mating season. Queens lay eggs to populate their colonies, and swarmers leave the colony to form new satellite colonies. Drones and queens only swarm in mating season, which typically occurs in early spring.

Why are they here?

why are carpenter ants here?Carpenter ants re-emerge from winter dormancy to replenish their energy and mate. Drones and queens emerge first in late winter or early spring. The more numerous drones swarm in large groups while seeking queens during mating season. You may notice these swarms around your home as early as mid-March. After mating, carpenter ant queens look for likely places to establish new nests. If they find a good place inside your home, they’ll lay 15-20 fertilized eggs there. These eggs will hatch into workers, which will begin to build a new colony.

Finding carpenter ants indoors doesn’t automatically mean you have an infestation. Sometimes queens or swarmers make their way indoors automatically, without intending to establish a nest there. Pay attention to how early you find carpenter ants indoors, as well as what caste those ants belong to. If you find numerous swarmers that seem to be trapped inside your home, it’s probably because they emerged from an indoor nest.

What do they want?

carpenter ants bore through woodUnlike many varieties of ant, carpenter ants are not primarily motivated to infest homes by the food inside. Carpenter ants feed on protein and sugar, primarily by foraging for aphids, live and dead insects, and honeydew. Contrary to popular belief, carpenter ants do not eat wood; they simply excavate it to build their colonies. Instead of food, carpenter ants are primarily motivated by moisture. They need water to survive, just like everything else, and excavating wood is thirsty work.

Carpenter ants tend to seek out and infest moist, wet, or decaying wood. Building into wet wood allows worker ants to stay hydrated while they work. It’s also easier to break down and transport wood when it’s already wet and piliable. Rotten wood is especially easy to burrow through, making it a favorite of carpenter ants. Queens tend to build nests into existing wood damage, as it provides shelter for eggs and a convenient starting point for newly-hatched workers.

How can I keep them out?

how can you keep carpenter ants out of your home?Preventing carpenter ants is all about wood management. Start in your yard. Look for any wood carpenter ants could conceivably build into. Remove stumps, dying bushes and shrubs, dead bark, and any other rotting wood. Keep firewood elevated off the ground or store it indoors. Walk the perimeter of your home looking removing and replacing rotting or cracked siding. Cover wood that directly contacts soil with hard plastic covers.

Inside, focus on moisture control. Identify and repair any plumbing leaks, especially if they could be leaking onto wooden structures. Monitor indoor humidity levels, particularly in at-risk areas like the basement, attic, or crawl spaces. Check for drafts around walls, doors, and windows. Make sure windows and pipes don’t “sweat” during particularly humid or cool days. Finally, replace any damaged wooden furniture or structures, especially if they’re showing signs of internal rot. If your basement is quite humid, consider moving any wooden items upstairs until you can install a dehumidifier.

 

You could probably use a little good news after all this bad news. We’ve got some… kind of: compared to termites, carpenter ants work slowly. The first year they establish a nest, the colony grows slowly and the damage it inflicts is minimal. After a year, however, the colony keeps growing at a consistently faster pace.

Obviously, that means it’s very important to find and snuff out carpenter ant infestations quickly. Luckily, you don’t have to do that alone. Your kingdom always has an ally in Griffin Pest Control. Give us a call with your carpenter ant problem anytime. We’re always ready to answer the call to arms.