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House & Horse Flies in Maryland


There are two species of flies that we commonly see in Maryland: the common house fly and the stable fly, also known as the horse fly. Both types of flies carry numerous pathogens and can be extremely harmful to humans and pets. 

The Stable Fly, or Horse Fly

Horse flies are larger than house flies and give a painful sting when they bite their prey. When the stable fly feeds, it sucks the blood from its prey and can live for about 3 weeks off of the prey's blood. Horse flies are particularly gruesome, and can carry harmful diseases including anthrax, leprosy, and swamp fever. 

The House Fly

House flies can be a nuisance and always manage to avoid your swatting attempts. Ever wonder how those pesky little flies always manage to get away? They are able to move their wings up to 200 times in a second and can fly as fast as 5 mph. Flies have tiny steering muscles that compromise of only 3% of their body weight. The wings have virtually zero weight, so the steering is done with tiny muscles in the body of the fly

How Long Do House Flies Live?

Once they make their way inside your home, the house fly can live up to 60 days but can live even longer, up to 5 months, in the warmer summer months. According to Insect-O-Cutor, in the summer reproduction months (April to September), the descendents of one pair of flies, if all lived and reproduced normally, would number 191 thousand trillion...enough to cover the entire land area of the world to a depth of 18 feet! (Thankfully, this isn't the case and nature keep things at balance!)

How Does a House Fly Eat?

A house fly has poor eye sight, despite its numerous lenses it has, and relies on its sense of smell to find its food source. House flies get nourishment through an eating tube through which it releases a drop of fluid from its stomach and deposits it on its meal. The fluid is then sucked back up along with the nutrients it has dissolved. 

Are House Flies Dangerous?

Although house flies seem pretty impeccable, they also carry many pathogenic bacteria. House flies have been known to carry the following diseases:

  • Typhoid
  • Tuberculosis
  • Listeria
  • And more

House flies do not sting, but they do feed on fecal matter including those left behind by pets in the backyard. The same goes for farm animals that can be a feeding frenzy for flies. The house fly is dangerous because it can regurgitate upon various sources of fecal matter resulting in a plethora of potential diseases.


How to Prevent House & Horse Flies in Maryland

The best way to prevent house flies and horse flies is to keep your house clean. Clean up all trash around the house and make sure to take your trash outside regularly. If you like to keep windows open in your home, insert a screen so flies don't come venturing in.

Does Warm Weather Bring More Flies in Maryland?

With warmer weather on its way, it's important to make sure that you do not give flies the opportunity to reproduce in your home. All it takes is a short warm spell of temperatures of about 60 degrees, and flies will re-start their life cycle. If the weather stays warm, then the female will begin laying eggs in the quantity of 75-100 eggs every 3-4 days. Eggs are deposited on warm moist food sources, including fecal matter, garbage, and food. Warm weather can certainly lead to more horse flies and house flies in your home.

If your fly problem becomes bigger than you can handle, let B.O.G. Pest Control solve it! Give us a call today at 410-376-5312!


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