CONTENTS 



Page. 

 Introduction 



Importance of the gipsy moth as an insect pest in this country 9 



State work against the gipsy moth in Massachusetts. 1890-1900 11 



Record of the gipsy moth in its native home 11 



Life history of the gipsy moth L2 



The eggs 12 



The larvae 13 



The pupae ♦ 15 



The adults L6 



Methods employed in work against the gipsy moth Hi 



Scouting 16 



Spraying 17 



Burlapping 17 



St icky hands L8 



Cutting and burning L8 



Pruning 19 



Treating e^ clusters 19 



Discovery of the brown-tail moth in America 20 



European history of the brown-tail moth 21 



Life history of the brown-tail moth 21 



The eggs 21 



The larvae 21 



The pupae 22 



The adults v 23 



Poisoning effect of brown-tail hairs 24 



Natural enemies of the gipsy and brown-tail moths native to America 26 



Progress of the state work in Massachusetts. L890 1900 27 



Discontinuance of the state work in Massachusetts 28 



Conditions in the infested territory at the close of the slate work 29 



Funds expended by the Stale during the progress of the work 29 



Results of discontinuance of the work ;>0 



Stale work resumed in Massachusetts ;\[ 



Beginning of work by the National Government :\7 



Work by the State of Massachusetts 17 



Work in the State of Maine 50 



Work in the Slate of New Hampshire 



Work in the State of Rhode Island 



Work in the State of Connecticut 56 



Inspection of lumber and forest products r»7 



Danger of introducing the gipsy moth and brown-tail moth from foreign coun- 

 tries 6Q 



Experimental work in the control of the gipsy and brown-tail moths . . 62 



