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The House Fly and How to Suppress It U. S. Department of Agriculture Farmers' Bulletin No. 1408   By: (1857-1950)

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U. S. DEPARTMENT OF AGRICULTURE

FARMERS' BULLETIN No. 1408

The HOUSE FLY AND HOW TO SUPPRESS IT

[Illustration: fly]

[Illustration: USDA seal]

The presence of flies is an indication of uncleanliness, insanitary conditions, and improper disposal of substances in which they breed. They are not only annoying; they are actually dangerous to health, because they may carry disease germs to exposed foods.

It is therefore important to know where and how they breed, and to apply such knowledge in combating them. This bulletin gives information on this subject. Besides giving directions for ridding the house of flies by the use of screens, fly papers, poisons, and flytraps, it lays especial emphasis on the explanation of methods of eliminating breeding places and preventing the breeding of flies.

This bulletin supersedes Farmers' Bulletin 851.

Washington, D. C. Issued April, 1925; revised November, 1926

THE HOUSE FLY[1] AND HOW TO SUPPRESS IT.

By L. O. HOWARD, Chief of the Bureau of Entomology , and F. C. BISHOPP, Entomologist .

CONTENTS. Page. Kinds of flies found in houses 1 Where the true house fly lays its eggs 2 How the house fly passes the winter 6 Carriage of disease by the house fly 6 Excluding and capturing flies 7 The use of screens 7 Fly papers and poisons 8 Fly sprays 8 Flytraps 9 Preventing the breeding of flies 9 Construction and care of stables 9 Fly tight manure pits 10 Frequency with which manure should be removed in cities and towns 10 Health office regulations for control of house flies in cities 10 Disposal of manure in rural and suburban districts 11 Chemical treatment of manure to destroy fly maggots 12 Maggot trap for destruction of fly larvæ from horse manure 13 Compact heaping of manure 15 Garbage disposal and treatment of miscellaneous breeding places 15 Sewage disposal in relation to the prevention of fly borne diseases 15 What communities can do to eliminate the house fly 16

KINDS OF FLIES FOUND IN HOUSES.

Several species of flies are found commonly in houses. Some of them so closely resemble the true house fly that it requires very careful observation to distinguish them from it.

One of these is the biting stable fly[2] (fig. 1). It occurs frequently in houses and differs from the house fly in the important particular that its mouth parts are formed for piercing the skin. This fly is so often mistaken for the house fly that most people think that the house fly can bite.

Another frequent visitant of houses, particularly in the spring and fall, is the cluster fly.[3] It is somewhat larger than the house fly, and is distinguished by its covering of fine yellowish hairs. Occasionally this fly occurs in houses in such numbers as to cause great annoyance. It gets its name of "cluster fly" from its habit of collecting in compact groups or clusters in protected corners during cold periods.

Several species of metallic greenish or bluish flies also are found occasionally in houses. These include a blue bottle fly,[4] the black blowflies,[5] and the green bottle (fig. 2) flies.[6] They breed in decaying animal matter... Continue reading book >>




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