Entomologist, Investigations of Insects Affecting the FARMERS' BULLETIN 734 UNITED STATES DEPARTMENT OF AGRICULTURE Contribution from the Bureau of Entomology
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. |