Ants love garage and sheds. They find remnants of food sources, and people often don’t notice them for several days, letting them eat and multiply undisturbed. A bad combo!
There’s a lot of advice out there about getting rid of ants, and all of them claim to get rid of ants for good! Those are problematic claims. The fact of the matter is that ants will never be gotten rid of forever. They are simply too resilient to be defeated with ant baits, or any other kind of device or poison that claims to get rid of ants permanently. So you’ve got to bring in some of the ol’ science to see how to get rid of ants and control any infestations.
Ant colonies are often so large–biologists call them “super colonies”–that it would take a community effort to finally get rid of ants once and for all. You see, the reason ant colonies get so big is because their similar genetic makeup allows ants from what would usually be competing colonies to travel amongst one colony or another. In fact, they will even “team up” with other colonies, thus creating the feared super colony, with literally millions of workers and thousands of queens. They are indeed a force to be reckoned with. Until scientists come up with a way to finally rid our local habitats of these foreign invaders, here are some things you can do to help control Argentine ant populations on your property and in your buildings.
Ants are some of the most common bugs that people have trouble with, and one of the more common to try to eliminate.
Best Methods for Ant Control in a Shed or Garage
Seal Your Shed
To make sure ants can’t get into your shed, you must have the outside of your structure sealed properly. Ants need a hole less than 1 mm in diameter to get into your home, so caulk those spots where you think ants might gain entrance, particularly on ground floors and on your foundations. For doors and windows, weather stripping can help fill gaps where ants could simply walk right in. Make sure your window screens and door screens are fitted properly and don’t have tears. I’ve seen ant trails going up and into a screen door. It’s intriguing, really.
Sealing your shed will help keep mice out, too.
Use Talcum Powder
Talcum powder may also be used for getting rid of ants or at least preventing a total invasion of your shed or shop area. Who knows why ants don’t like talcum powder, but this is an age old trick. If you notice ants coming into your home where perhaps you haven’t sealed properly, dust the floor with talcum powder. The ants will make contact with it at first, but never again after that. You can do this all along the baseboards of your building if you have to.
Use Diatomaceous Earth
To get rid of ants that are invading your garden or shed surroundings, you may want to try Food Grade diatomaceous earth. Diatomaceous earth really is a miracle of nature. Professional gardeners have been using this stuff for a while now to line their gardens, preventing crawling pests from gaining entrance to their gardens. If you don’t want more trouble with aphids and scale insects, and you’re in an area where ants are known to inhabit, you should probably try lining either your whole garden with diatomaceous earth or surrounding just the plants that are particularly susceptible to aphid and scale insect infestations.
If you have a buffer area around your shed, applying some of the diatomaceous earth along the perimeter could help prevent future ants from finding their way in.
The method can work great against voles, too.
Use Granular Ant Baits
To get rid of ant that are invading your yard, shed, or garage, you may want to try broadcast baiting with protein-based granular ant baits like those made by Advance, Maxforce, and Niban. Granular baits are spread across a lawn much like fertilizer is, using the same kind of delivery device, in fact. Just be careful if you have toddlers who like to roll around in your yard, or curious pets. While many of these products are made with naturally-occurring ingredients and are deemed safe for humans and animals, we prefer not to cover ourselves in or ingest them.
This is best done in early spring or whenever you notice the ants are more active.
This technique is particularly effective for larger yards and properties, but is temporary. Because the colonies are so big, chances are they have sister colonies not found on your property. You may want to bait for ants once or twice a month to keep their populations at bay. Amazon sells Niban in a 4lb shaker for a reasonable price.
Use Sweet Baits
To get rid if ants that are invading the interior of your shed or garage, brand name sweet baits like Terro (which you can get at Amazon) and Ant Bait Gels are your best bet. These super-saturated mixtures usually contain a kind of sweet syrup and a poison like borax (otherwise known as boric acid), a slow-acting poison that the ants carry back to the colony, and feed to the larvae and queens. If you have ant coming into your shed, identify where the ants are trailing, and put the sweet baits next to those. You should see fewer ants in your building within four or five days.
Eliminate Rotting Wood
If you have a carpenter ant infestation on your porch, deck, or in your shed or workshop, there is a good chance they are attracted to rotting wood. Inspect every inch of the structure to see if you find wood that is chronically wet or damp and rotting. Look at the floor, rafters, walls, roof, shelving, everything.
If you find a rotten piece of wood, replace it and understand what it making it wet. You might need to fix some roofing or work on drainage, or perhaps repaint the exterior, to ensure the wood doesn’t become soft and attractive to ants again.
Controlling Ants in a Garden
Often, a problem with ants in a shed, especially a garden shed, begins with an ant problem just a few feet away in the garden area. So, controlling ants in the garden should help control them in your shed.
Ants present a danger not only to your local habitat and farmers’ crops, but they also present a danger to your garden. Ants are notorious for tending to scales and aphids, two of the most common and destructive garden pests. They will even go so far as to attack and kill beneficial insects that feed on aphids, namely those lady bugs native to your locale. Ensuring that ants don’t get into your garden is paramount to retaining a healthy garden in North America. As I mentioned before, diatomaceous earth is a perfectly natural and effective way to ensure that ground-dwelling bugs stay out of your garden, provided you’ve cordoned off any land-based travel into the garden with the diatomaceous earth. I wouldn’t try broadcast baiting with protein-based ant bait granules in your garden because you don’t want those chemicals on vegetation you may eat later, and you don’t know how they might affect your prize-winning petunias. What I would suggest are a couple of shallow plates or bowls filled with a mixture of sugar water and boric acid. The recipe is simple and is as follows: 4 teaspoons of boric acid, 3 cups of hot water (to dissolve the boric acid), and 1 cup of sugar.
Best Natural Ant Control Methods
Boric Acid and Sugar Water
Boric Acid and Sugar Water is really your only natural defense against an ant invasion. You can scale the solution mentioned under Controlling Ants in a Garden to suit your needs. Basically, when the ants ingest the boric acid mixture it remains in a liquid state long enough for them to bring it back to the colony, feeding it to the queens and larvae. Once the solution begins to dry, however, the boric acid crystallizes, lacerating the digestive track of the ants, including the larvae.
Diatomaceous Earth (Food Grade only!) acts in much the same way as boric acid does but from the outside rather than the inside. Diatomaceous earth is made of fossilized algae that is razor-sharp at the microscopic level. When insects like ants come in contact with the material, their exoskeletons are lacerated and infiltrated by the microscopic sediment, resulting in dehydration and death–an extremely painful death for the ant, I imagine.
Talcum Powder has been used as an ant repellent for a very long time. Use it to dust areas where you may have noticed ants are coming into your home. It is not poisonous to the ants, but they tend to avoid talcum powder once they’ve come into contact with it. Who knows why?