Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1959 European corn borer control with granular formulations of endrin, heptachlor, and toxaphene Mahlon Lowell Fairchild Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Zoology Commons Recommended Citation Fairchild, Mahlon Lowell, "European corn borer control with granular formulations of endrin, heptachlor, and toxaphene " (1959). Retrospective Theses and Dissertations. 2152. https://lib.dr.iastate.edu/rtd/2152 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact
[email protected]. EUROPEAN CORN BORER CONTROL WITH GRANULAR FORMULATIONS OF ENDRIN, HEPTACHLOR, AND TOXAPHENE by MaliIon Lowell Fairchild A Dissertation Submitted to the Graduate Faculty in Partial Fulfillment of The Requirements for the Degree of DOCTOR OF PHILOSOPHY Major Subject: Entomology Approved: Signature was redacted for privacy. Signature was redacted for privacy. Heati of Major department Signature was redacted for privacy. Iowa State Col 1ege Ames, Iowa 1959 I I TABLE OF CONTENTS INTRODUCTION REVIEW OF LITERATURE METHODS AND PROCEDURE DISCUSSION AND RESULTS SUMMARY AND CONCLUSIONS LITERATURE CITED ACKNOWLEDGMENTS APPENDIX ] INTRODUCTION The European corn borer (Pyrausta nubi la 1 is (libn. ) ) was first re ported in this country by VinaI (1917). He suggested that it might have been imported in broomcorn from Europe. Since then it has moved west ward and southward until now it covers a major part of the corn growing area in the United States and Canada and has become one of the major economic pests on corn.