UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 965 



Contribation from the Bureau of Entomology 

 L. O. HOWARD, Chief 



Washington, D. C. T October 18, 1921 



CONTROL OF THE ARGENTINE ANT IN 

 CALIFORNIA CITRUS ORCHARDS 



By 



R. S. WOGLUM, Entomologist, and A. D. BORDEN, Scientific 

 Assistant, Fruit Insect Investigations 



CONTENTS 



Page 



Introduction 1 



Relation of the Ant to the Citrus Industry 2 



Other Relations 4 



Distribution 4 



Characteristics and Habits 6 



Control 9 



Banding 9 



Trap Netting 18 



Poisoned Sirups 20 



Factors Influencing Control o 34 



Control on Marginal Trees <. 87 



Clean Culture 38 



Control on House Lots or about Buildings 40 



Comprehensive Demonstration of Control 41 



Summary 41 



washingt6n 

 Government printino off<C8 



1921 



