>ptera and Their Para- 

 ed From Field Collections 

 rtheastern United States 



by 



r., 1 Forest Insect and Disease Laboratory, 

 est Experiment Station, Forest Service, 



Introduction 



;reater losses to our timber resource every year 

 the most dreaded enemy of our forests. Several 

 sed to reduce this insect damage. One method 

 l chemical sprays. Another uses silvicultural 

 sst stands healthy and thus reduces their sus- 

 btack. A third utilizes predators and parasites 

 s; this last method is called biological control, 

 ports one phase of studies designed to acquire 

 le distribution, food plants, life histories, and 

 erous insects in Northeastern United States, 

 ge is basic for all methods of controlling forest 

 formation contained in this report will be of 

 jomologists and students interested in biological 



begun in 1915 by the Bureau of Entomology 

 at its laboratory at Melrose Highlands, Mass., 

 ive hosts of introduced parasites of the gypsy 

 ir L.) and the brown-tail moth (Nygmia phaeor- 

 i determine the possible effect of these parasites 

 ad their natural enemies. Data on the macro- 

 t* parasites reared from field collections were 

 partment of Agriculture Miscellaneous Publica- 

 . The data on the microlepidoptera and their 

 . this report were accumulated, for the most 

 period. 



f field-collected material was sent to the labo- 

 f the field staff engaged in moth control work 

 larantine regulations during the period 1915-35. 



er retired in June 1953. During the period this study 

 tomologist at the Melrose Highlands (Mass.) Laboratory 

 ation of the Division of Forest Insect Investigations, 

 md Plant Quarantine. The work of this division was 

 . Service when the Department of Agriculture was re- 



(3 sheets) 



^7777777771 

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drawings ma) i>. obtained throu 

 rom the Extension agricultural en 

 □cultural colleges. There is nsoa 



v->i. TWO-PEN HI l.l. I! vkn 

 .1) 1. 01 S 



(his plan are not ;n ailable in \i, 



Department of kgriculture, Ak 



search Division, Plant Indus) 



I he l . s. Depart menl of igi 



c draw Ings, iiui will direct j( 

 buir them. 



