VI. ENTOMOLOGY. 



I herewith transmit a report of the entomological work of the 

 Station during the past year. The report has been prepared by the 

 assistant Entomologist at my request, as nearly all the entomological 

 work has been done by him. 



J. H. COMSTOCK, 



Professor of Entomology. 



Report of Assistant Professor Slingerland. 



The work of the Entomological Division of the Station during the 

 past year has been along similar lines as in previous years. Some 

 work begun in previous years was finished, and considerable new 

 work is now in progress. Several co-operative experiments were 

 made with fruit-growers, and some very interesting and valuable 

 results were obtained. The time consumed in teaching and corre- 

 spondence work increases each year, and now requires a considerable 

 portion of the Entomologist's time. 



I. EEDERAL EXPERIMENT STATION WORK. 



Two bulletins were published during the past year from thi.> 

 Division, giving the results of research work under the auspices of 

 the Federal Funds. 



Bulletin No. 233 dealt with two new shade tree pests : Saw-fly 

 miners on European elms and alder. 



Bulletin No. 234 discussed the bronze birch borer : An insect 

 destrojn'ng white birches. 



Work is being continued by this Division on other insect pests 

 of shade trees and ornamental plants, and a thorough study of the 

 insect enemies of timothy has been begun. 



II. EXTENSION WORK WITH STATE FUNDS. 

 reaching. — During the winter a course of lectures on injurious 



insects was given to 38 students in the short Winter Course in 

 Agriculture. 



Experimental tvork. — Under the auspices of the State Funds there 

 was issued from this Division : 



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