House Flies

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House Fly Facts

  • ¼ of an inch in length.
  • Dark gray in color.

Primarily active in the summer and found in more places on the planet than virtually any other insect, the house fly accounts for more than 90 percent of all flies in human habitations. Despite relatively short adult life-spans of two weeks to a month, house flies produce huge broods that can quickly lead to infestation. With a well-earned reputation for spreading disease and an increasing immunity to pesticides, house flies may pose serious health threats to humans and pets.

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