﻿UNITED STATES DEPARTMENT OF AGRICULTURE 



DEPARTMENT BUUETIN No. 1374 



Washington, D. C. ▼ March, 1926 



STUDIES OF THE PINK BOLLWORM IN MEXICO 



By 



W. OHLENDORF, Plant Quaranfine hspector 

 Federal Horticultural Board 



CONTENTS 



Page 

 Inception and Scope of the Work ........................ 1 



Distribution of the Pink Bollworm 2 



Htbitf 3 



Damage Caused by (he Pink Boiiworm IS 



Food Plant . 28 



Diisemination by Flight ....<. 29 



Natural Control 31 



RepresaioD ...........37 



Summary ..64 



WASHINGTON 

 GOVERNMENT PRINTING OFHCE 



1926 



