DEPARTMENT OF ENTOMOLOGY 125 



Albert F. Conradi, B. S., a graduate of the Ohio State University, 

 did not beg-in work until July, since when he has helped greatly 

 in the efficiency of the department. During the spring months 

 my own time was so filled with teaching and other college duties 

 that extended observations in the field and laboratory were out of 

 the question. Consequently it was impossible to follow as closely 

 as I desired some notable insect outbreaks — particularly those of 

 the cankerworm and the apple-leaf hopper. 



Four bulletins, covering 114 pages of printed matter, have been 

 issued by the department daring the, year. Two of these — Bul- 

 letin 81, ^' The Insect Record for 1900," and Bulletin 85, " Rem- 

 edies for the Cankerworm," were in the general series, and two — 

 "The Butterflies of New Hampshire," by Mr. Fiske, and "The 

 Food of the Myrtle Warbler," by Dr. Ned Dearborn and myself 

 — were in the limited technical series, designed primarily for dis- 

 tribution among specialists. 



The principal lines of work of the department for the year may 

 be summarized as follows : 



1. Studies of remedies for the cankerworm. 



2. An extended study of the squash bug — its life history, ene- 

 mies, and methods of preventing its injuries. The results are to 

 be published in a bulletin now nearly ready for printing. 



3. A continuation of exj^eriments with combinations of kero- 

 sene and water as an insecticide. 



4. A continuation of our studies of the food of birds, in which 

 T have had the volunteer assistance of Dr. Ned Dearborn. 



5. The preparation of a bibliography of birds in their relations 

 to agriculture. 



6. The preparation of an extended article uj)on the parasites of 

 the tent caterpillar, based on the observations of Mr. Fiske for the 

 last five years. This will be an imjjortant contribution to our 

 knowledge of the effect of parasites upon crop j^ests, and I hojje 

 to be able to publish it as a technical bulletin at an early date. 



7. The commencement of an investigation of the mosquitoes of 

 New Hampshire, with special reference to the j)racticability of 

 destroying them in our summer resort regions. 



8. Miscellaneous observations upon injurious insects, and cor- 

 respondence in reference to them, a fuller account of which will 

 appear in the Insect Record for 1901. 



