. Bulletin of the Department of Agriculture. Agriculture; Agriculture. UNITED STATES DEPARTMENT OF AGRICULTURE BULLETIN No. 564 Contribution from the Bureau of Entomology L. O. HOWARD, Chief Washington, D. C. October 4,1917 COLLECTION OF WEEVILS AND INFESTED SQUARES AS A MEANS OF CONTROL OF THE COTTON BOLL WEEVIL IN THE MISSISSIPPI DELTA * By ft R. COAD and T. F. McGEHEE, Entomological Assistants Southern Field Crop Insect Investigations CONTENTS Page General Statement of Experiments Con- ducted 1 Time Interval between Bag-and-Hoop Collections in Relation to Proportion of Infested Forms S
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. UNITED STATES DEPARTMENT OF AGRICULTURE BULLETIN No. 564 Contribution from the Bureau of Entomology L. O. HOWARD, Chief Washington, D. C. October 4,1917 COLLECTION OF WEEVILS AND INFESTED SQUARES AS A MEANS OF CONTROL OF THE COTTON BOLL WEEVIL IN THE MISSISSIPPI DELTA * By ft R. COAD and T. F. McGEHEE, Entomological Assistants Southern Field Crop Insect Investigations CONTENTS Page General Statement of Experiments Con- ducted 1 Time Interval between Bag-and-Hoop Collections in Relation to Proportion of Infested Forms Secured 3 Plat Tests of the Value of the Bag-and- Hoop as a means of Weevil Control under Field Conditions 18 Studies on the Value of a Mechanical Col- lector of Boll Weevils 37 General Considerations and Summary . 42. WASHINGTON GOVERNMENT PRINTING OFFICE 1917. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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