The Indian Meal Moth in Michigan

Close-up of an Indian Meal Moth

At first, the Indian meal moth probably doesn’t seem like that scary a pest, all things considered. It doesn’t look big or dangerous, it’s not destroying your home, and it’s not biting you while you sleep! If that’s how you feel, then consider yourself lucky. If you’re not afraid of Indian meal moths, then you’ve probably never encountered one… in your food.

Food-infesting pests are a special kind of scary. You might accidentally eat them. It’s gross. Indian meal moths are one of the most notorious food-infesting pests in Michigan. Every year, they infest thousands of Michigan cupboards and pantries. You don’t yours to be one of those pantries, trust us. Here’s everything you need to know to make sure it won’t be.

What is an Indian Meal Moth?

Indian meal moths are a common stored food pest insect in Michigan. The name “Indian meal moth” references the fact that it frequently feeds on cornmeal (or “Indian meal”). Adult Indian meal moths are around ⅝ to ¾” long, reddish-brown or copper-colored torsos. Their wingspan is about ½” long. The wings are also copper-colored, but they have a distinctive light tan or grey-colored top section. When Indian meal moths aren’t flying, they fold their wings together along their bodies.

Indian meal moths actually spend a good deal of their lives in their larval or caterpillar form. These larvae are a very light, clear white, yellow, pink, or greenish shade, with a brown head. They start very small and grow consistently longer. Mature larvae grow to around ½ to ⅝” inches long. They often crawl along sheer walls and produce a silk which they spin into cocoons. An Indian meal moth’s entire life cycle completes in about six weeks.

What do Indian meal moths want?

What Do Indian Meal Moths Want?

Contrary to popular belief, adult Indian meal moths lack mouthparts and can’t actually eat anything. Instead, they only live long enough to reproduce and lay their hundreds of eggs. Adult meal moths lay their eggs on (or in) any number of food sources. That way when these offspring hatch, they’ll have food to eat right away. Indian meal moth larvae actually do all the eating–and damage–that you’ll want to watch out for.

Indian meal moth larvae feed on all kinds of stored dry pantry foods. They’ll eat cereal, pasta, bread, sugar, flour, cornmeal, pancake mix, oatmeal, nuts and seeds, cornmeal, and more. Larvae eat constantly until they’ve stored enough energy for adult metamorphosis. Often, they’ll eat their way inside the food they’re feeding on. When they’ve feed enough, larvae spin themselves into cocoons made of a fine silk. Pupation and metamorphosis takes around 30 days. When it’s finished, an adult moth emerges and the cycle begins again.

Where Do Indian Meal Moths Come From?

There are two common ways Indian meal moths infiltrate homes. Either they get in through regular access points, or homeowners inadvertently bring them in themselves. Like all moths, Indian meal moths are attracted to light at night. They may fly toward home lights and, in their confusion, accidentally enter homes through cracks in window and door frames. Moths often enter homes by flying through damaged window screens during the summer time.

More frequently (and upsettingly), however, Indian meal moths get inside your home by stowing away in your food. Meal moth larvae can be very difficult to see, particularly when they’re young. They often eat their way inside the food they inhabit, so they’re not visible from the outside. Many meal moths work their way inside food boxes, as well. Homeowners buy this food and bring it inside. From there, the meal moths can spread to other food sources in their pantries.

How can I prevent Indian meal moths?

How Can I Prevent Indian Meal Moths?

The best way to prevent Indian meal moths is to pay close attention to the food in your pantry. Store all your dry goods in airtight, hard plastic containers. Take cereal out of its cardboard boxes and transfer the bag into hard plastic. Keep pasta boxes inside hard plastic containers. Make sure you fasten the lids of these containers tightly whenever you’re not using them. Clean out your pantry itself frequently, as well, to prevent crumb buildup.

If you’re worried you have pantry moths, take all the food out of your pantry. Thoroughly scrub down the shelves and walls of the pantry. Look for cocoons, silk, or other signs of moths. Then, examine the food itself for silk or signs of damage. Pull apart bread or other foods larvae or eggs could hide in. Throw out all the food that Indian meal moths could have infested. Both at home and when you’re shopping, watch out for food with broken packaging.

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If you’re worried you might have an Indian meal moth infestation, don’t panic! Just clear your pantry and give Griffin a call right away. No matter how big or entrenched your infestation may be, we will root it out and eliminate it permanently. Call us, and we’ll make sure you can get back to enjoying your food bug-free.

Why Flying Ants Show Up in Fall

Flying ants on a blade of grass

Every year around Labor Day, swarms of flying ants begin appearing all over west Michigan in huge droves. For the next couple days, they’re flying around everywhere. You might even remember the infamous “flying ant day” of 2017, when the swarms descended on Detroit. Then, as mysteriously as the ants appear, they seem to vanish without a trace.

What are these winged ants, exactly? Where did they come from? Where do they go after they’re done darting around all over the place? Most importantly, are they going to try to infest your home this fall? Here’s everything you should know about the enigmatic winged ants you’re seeing this September.

What are they?

The flying ants that you’re seeing right now are the reproductive swarmer (or alate) variety of yard ants. Yard ants are related to carpenter ants, but they nest in the ground instead of chewing through wood. Swarmers are around ¼ to ⅜” long, look reddish brown, and have a hump between their heads and thoraxes. They look like normal ants in every way, except that they have wings. Swarmer wings are clear and translucent. They fold behind the ants’ backs when the ants aren’t flying.

There are more than 50 different species of common yard ant native to Michigan. The ant swarms you’re seeing represent many different types of species that all become active this time of year. Different swarms come out at different times, which is why it seems like the swarming doesn’t stop for days. You’ll often notice swarms seem to gather or even collide in midair and then begin moving as a group.

why do flying ants show up in Michigan every fall around Labor day?

Why are they here?

Flying ants exist for one reason: to reproduce. Alates spend most of spring and summer inside their ant colonies, where they’re fed by workers. In late summer and under the right conditions, they fly out of the nest to seek mates. The ants require high temperatures and humidity and clear, sunny weather without much wind to begin swarming. They’re particularly prone to begin their swarming on the first clear day after several days of rain.

Most yard ant species reproduce around late summer because that’s when their ideal swarming conditions happen. Ants also tend to begin reproducing in late summer to prepare for winter. When conditions are just right, many different species’ will begin the mating process all at once. Although late summer reproduction is most common in Michigan, other ant species may swarm at other times of year. Some flying ants swarm in spring, fall, or even mid-summer.

What are they doing?

Flying ant swarms are either actively mating or in the process of seeking out mates. Flying ants mate in midair in a process called “nuptial flight.” On “flying ant day,” unfertilized flying queen ants (sometimes called “princesses”) leave their colonies and begin secreting attraction pheromones. Male and female alates purposely fly away from their nests to help ensure outbreeding. The pheromones secreted by princesses attract nearby male reproductives (sometimes called “drones”).

Princesses actually often fly away from males, forcing them to pursue her in order to mate. The swarms you see are groups of male drones pursuing one of these princesses. Mating itself occurs very quickly and in midair. Male drones die very soon after mating. The fertilized female will fly to the ground and begin making a new nest. Soon after, she will lose her wings and begin laying eggs. The first of these eggs will hatch into workers, who will lay the foundations for a new colony.

are flying ants dangerous?

Are they dangerous?

No. Swarms only have mating on their mind. They won’t bite, sting, or attack you. Swarming ants aren’t aggressive, territorial, or defensive in any way. Even if swarms appear to be flying right at you, it’s only because they’re pursuing a princess. Swarms are more-or-less totally uninterested in people, though they may congregate on human structures. Swarmers may also accidentally flutter into buildings through openings like cracks and crevices.

Yard ants can’t make their nests indoors. To form a nest, a fertilized queen must dig into soil. Queens may build their nests near your home, however. Often, ants build their colony sites near human structures because of the natural cover they provide. Queens are particularly vulnerable when they start building nests, so they may seek cover and darkness near your home. When yard ants establish colonies near you, you may encounter their foraging workers inside your home. These workers aren’t dangerous, either, but they could be annoying.

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Despite how frightening it can seem, swarming season is nothing to worry about. Flying ants aren’t dangerous, and they’ll die off and disappear very soon. If you’re very bothered by ant swarms this year, we recommend staying inside whenever possible while swarms are active. Luckily, you won’t have to wait long until they pass.

Swarms may be more-or-less unavoidable, but that doesn’t mean ant infestations must be. If you have an ant problem in your home, give Griffin a call any time. We’ll find out why you have ants, where they’re coming from, and how to stop them.