Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
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Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
FLIES: Difference between revisions
(New page: Flies. Often called "Filth Flies," these insects are not only a nuisance, but are important from a human and animal health standpoint. House flies may spread diseases such as conjunctiviti...) |
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Flies. Often called "Filth Flies," these insects are not only a nuisance, but are important from a human and animal health standpoint. House flies may spread diseases such as conjunctivitis, | Flies. Often called "Filth Flies," these insects are not only a nuisance, but are important from a human and animal health standpoint. House flies may spread diseases such as conjunctivitis, [[POLIO]], typhoid fever, tuberculosis, anthrax, leprosy, [[CHOLREA]], diarrhea and dysentery. They may serve as intermediate hosts for parasitic tapeworms on poultry or parasitic roundworms on horses. When feeding, house flies regurgitate some of their stomach contents on the food, which dissolves it. Then they suck it back into their stomach. They leave fecal deposits where they have walked. While walking and feeding on garbage, fecal material and food, flies may transfer disease organisms from both inside and outside their bodies. The flight range is from 2 to 20 miles. | ||
The life cycle from egg to adult may be from 8 to 12 days in warm weather. A pair of flies beginning operation in April, if all were to live, would result in 191,010,000,000,000,000,000 (191 quintillion 10 quadrillion) flies by August. Allowing 1/8 cubic inch to a fly, this number would cover the earth 47 feet deep. | The life cycle from egg to adult may be from 8 to 12 days in warm weather. A pair of flies beginning operation in April, if all were to live, would result in 191,010,000,000,000,000,000 (191 quintillion 10 quadrillion) flies by August. Allowing 1/8 cubic inch to a fly, this number would cover the earth 47 feet deep. | ||
Revision as of 03:42, 26 February 2010
Flies. Often called "Filth Flies," these insects are not only a nuisance, but are important from a human and animal health standpoint. House flies may spread diseases such as conjunctivitis, POLIO, typhoid fever, tuberculosis, anthrax, leprosy, CHOLREA, diarrhea and dysentery. They may serve as intermediate hosts for parasitic tapeworms on poultry or parasitic roundworms on horses. When feeding, house flies regurgitate some of their stomach contents on the food, which dissolves it. Then they suck it back into their stomach. They leave fecal deposits where they have walked. While walking and feeding on garbage, fecal material and food, flies may transfer disease organisms from both inside and outside their bodies. The flight range is from 2 to 20 miles.
The life cycle from egg to adult may be from 8 to 12 days in warm weather. A pair of flies beginning operation in April, if all were to live, would result in 191,010,000,000,000,000,000 (191 quintillion 10 quadrillion) flies by August. Allowing 1/8 cubic inch to a fly, this number would cover the earth 47 feet deep.
Fortunately, predators, parasites and other factors reduce fly populations. In Dubuque, the control of flies at least once involved the members of the DUBUQUE BOYS' CLUB.
