CONTENTS 



Paso. 



The pear thrips (Euthrips pyri Daniel) Dudley Moultnn. . 1 



Introduction 1 



Occurrence and distribution 1 



Nature and extent of i njury 2 



Life history and habits 7 



Methods and natural factors in control 12 



The spring canker-worm {Paleacrila rernalu Peck) A. L. Quaintance. . 17 



Introduction 17 



Life history and habits 18 



Demonstration work in canker-worm control 20 



Recommendations 21 



The trumpet leaf-miner of the apple ( Tischeria mali/olieUa Clemens). 



A . L . Quaintance . . 23 



History 23 



Descriptive 24 



Food plants 26 



Seasonal history 27 



Distribution 29 



Parasites 29 



Treatment 30 



The lesser peach borer (Synanthedon pictipes G. &. R.) ^1. ^1. Girault.. 31 



Introduction 31 



History - 31 



Original description ; scientific name 32 



Common names 32 



Food plants; characler and extent of injury 33 



Distribution 34 



Literature 34 



Life history and habit'^ * 35 



Seasonal history 42 



Natural enemies 44 



Preventives and remedies 45 



Bibliography 46 



The lesser apple worm {Enarmonia prunivora Walsh) A. L. Quaintance. . 49 



Introduction 49 



History 49 



Origin and distribution 52 



Food plants and destructiveness 53 



Character of injury 54 



a The nine papers constituting this l)ulletin were issued in separate form on June 10, 



July 6, October 15, and October 17, 1907; January 8, April 24, and April 29, 1908; and 

 January 20 and February 11, 1909, respectively. 



V 



