University ol tlie State ol New York Bulletin 



Entered as second-class matter August 2, 1913, at the Post Office at Albany, N. Y., under the 



act of August 24, 1912 



Published fortnightly 

 No. 606 ALBANY, N. Y. January i, 1916 



. New York State Museum 



John M. Clarke, Director 

 Ephraim Porter Felt, State Entomologist 



Museum Bulletin i8o 



30th REPORT OF THE STATE ENTOMOLOGIST 



1914 



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 14. 



The extended injuries by the apple tent caterpillar and the forest 

 tent caterpillar, noted last year, were continued during the past 

 season. The work of the latter species was particularly evident on 

 Long Island and in the Adirondacks. Popular warning notices 

 were sent early to the press, and at Westbury and Elizabethtown 

 power spraying outfits were used most successfully against the forest 

 tent caterpillar. The ten-lined inch worm was locally abundant 

 in the Gatskills and in Washington county. 



Oil injuries. The serious results following the application of 

 petrolerun compounds to the bark of dormant trees, noted in earlier 

 reports, have again come under observation the past season. One 

 of the most interesting of these was at Dalton, Mass., and resulted 

 from the application in May 1913 of burlap strips soaked in lubri- 

 cating oil to sugar maple trees set some ten or eleven years previously. 

 The Entomologist has also examined a number of fruit trees in 

 widely separated orchards where conditions favored the belief that 

 the serious condition of the trees was due to an earlier application 

 of a miscible oil. 



Fruit tree pests. The studies of the parasitic enemies of the San 

 Jose scale, begun in 19 13, have been continued during the past year 

 and have resulted in the finding of a number of orchards where 

 these beneficial forms were abundant and apparently very effective 



