New York State Museum Bulletin 



Entered as second-class matter November 27, 1915, at the Post Office at Albany, New York, 

 under the act of August 24, 1012 



Published monthly by The University of the State of New York 

 No. 198 ALBANY, N. Y. June 1, 1917 



The University of the State of New York 

 New York State Museum 



John M. Clarke, Director 

 Ephraim Porter Felt, State Entomologist 



THIRTY-SECOND REPORT OF THE STATE 



ENTOMOLOGIST 



1916 



Dr John M. Clarke, Director of the State Museum 



I have the honor to present herewith my report on the injurious 

 and other insects of the State of New York for the year ending 

 September 30, 19 16. 



The frequent and rather heavy rains of the spring and early 

 summer offset, in large measure, depredations of various early 

 leaf feeders by producing an unusual growth of vegetation. Apple 

 tent caterpillars were numerous in many localities and yet the dam- 

 age was relatively small. There were no complaints of injuries by 

 the forest tent caterpillar and very little serious damage by the 

 elm leaf beetle, a pest which in earlier years defoliated thousands 

 of trees and has been responsible for the death of many shade trees 

 in the Hudson valley. 



Fruit tree insects. Practical work with the codling moth was 

 continued the past season in cooperation with the bureau of horti- 

 culture of the State Department of Agriculture, and the Monroe 

 county farm bureau. These studies were conducted in four com- 

 mercial orchards in western New York, through the hearty cooper- 

 ation of their respective owners, and an effort made to determine 

 the relative value, as in former years, of the first, second and third 

 sprays for the control of this pest. In connection with these 

 investigations, observations were also made upon the development 

 and biology of the codling moth. The data secured show, as do 



