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Flour mite

life science Maturity 5-7 Next article →

The flour mite is a very small creature. Its scientific name is Acarus siro. These tiny bugs are a pest for stored grains. They also live in animal feed. You might see them in flour. They are often pale greyish white in color. They also have pink legs. These mites are the most common mite in food.

These mites have a very fast way it works. The female lays large clutches of eggs. Their whole life cycle takes just over two weeks. They grow very fast in poorly stored material. In a warehouse, they can become very abundant. Their dead bodies and old skins can pile up. This creates a fluffy brown material. It often gathers under sacks on the floor.

People first named these mites a long time ago. Carl Linnaeus named the animal in 1758. An older name for them was Tyroglyphus farinae. They can change how food feels and smells. The food gets a sickly sweet smell. It also gets a bad taste. This makes the food unpalatable for people.

These mites can cause many real problems. They create allergens in the dust they make. They can also move tiny germs to food. Some people get an itch called Baker's itch. This happens if the mites bite a human. They also affect farm animals. Animals might eat less food. They can get diarrhea or gut inflammation. Pigs may not gain weight well.

Not all uses for these mites are bad. Some people use them on purpose. They are put into Mimolette cheese. This helps to improve the flavor of the cheese. When people do this, they call them cheese mites. This shows how humans can use tiny bugs. It is a very different use for a pest.

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