Part 1

Transcriber Note

Text emphasis denoted as Italics and =Bold=. Whole and fractional parts of numbers as 123-4/5.

=FLYTRAPS AND THEIR OPERATION=

F. C. BISHOPP

Entomologist, Investigations of Insects Affecting the Health of Animals

FARMERS' BULLETIN 734

UNITED STATES DEPARTMENT OF AGRICULTURE

Contribution from the Bureau of Entomology L. O. HOWARD, Chief

Washington, D. C. Issued June 10, 1916; second revision, March, 1921.

Show this bulletin to a neighbor. Additional copies may be obtained free from the Division of Publications, United States Department of Agriculture

WASHINGTON : GOVERNMENT PRINTING OFFICE : 1921

RESULTS obtained in experiments with the use of chemicals against fly larvæ in manure are presented in Bulletins Nos. 118, 245, and 408 of the Department of Agriculture. The biology of the house fly and the various methods of control are discussed in Farmers' Bulletin 851.

This bulletin is intended to give directions for the use of a supplementary means of controlling flies. It is adapted to all parts of the United States.

=FLYTRAPS AND THEIR OPERATION.=

=CONTENTS.=

Page.

Uses and limitations of flytraps 3

Kinds of flies caught 3

Types of traps 4

Trapping the screw-worm fly 13

Baits for traps 13

Bait containers 15

Care and location of traps 15

Sticky fly papers 16

Poisoned baits 16

Caution 16

=USES AND LIMITATIONS OF FLYTRAPS.=

FLYTRAPS have a distinct place in the control of the house fly and other noxious fly species. There is a general tendency, however, for those engaged in combating flies to put too much dependence on the flytrap as a method of abating the nuisance. It should be borne in mind that flytrapping is only supplementary to other methods of control, most notable of which is the prevention of breeding either by completely disposing of breeding places or by treating the breeding material with chemicals.