REPORT OF THE STATE ENTOMOLOGIST 1903 93 



cides for controlling the San Jose scale have been carried on in 

 the same orchard as in the past three years, and our earlier results 

 with crude petroleum have been confirmed. Extended experi- 

 ments with lime-sulfur washes have also been conducted at War- 

 wick with very gratifying results. An extensive series of experi- 

 ments with summer washes was made, Mr Walker having direct 

 charge of the work and being responsible for most of the observa- 

 tions. A second instalment of the beneficial Chinese ladybeetle, 

 Ohilocorussi mills Rossi, which may prove of value in 

 suppressing this pernicious scale insect, was obtained from the 

 United States Department of Agriculture last August and estab- 

 lished in an infested orchard at Kinderhook. It is hoped that 

 they will survive in this latitude and prove of great value in con- 

 trolling this dangerous pest. The extended forest fires in the 

 Adirondacks early in the season offered an excellent opportunity 

 for investigating the connection between them and insect attack. 

 The results of this work are given on a subsequent page. Our 

 general studies of forest and shade tree insects have been con- 

 tinued and a number of valuable observations made. 



The present year has been marked by the appearance of a second 

 report by Dr Needham on aquatic insects, which consists of a 

 series of valuable original articles by himself, supplemented by 

 important papers from Messrs MacGillivray, Johannsen and 

 Davis. Another report by Dr Needham, is now in preparation 

 and will be devoted largely to a consideration of the May flies and 

 midges (C h i r o n o m i d a e) of the State. 



Investigations on our native mosquitos have been continued, 

 resulting in material additions to our knowledge. Collections of 

 these little insects have been made in different sections of the 

 State, and it was possible for Assistant D. B. Young to spend two 

 weeks at Long Island, working in cooperation with the North 

 Shore Improvement Association, which has become well and favor- 

 ably known to all interested in this line of effort on account of its 

 very efficient operations in subduing these pests in the vicinity of 

 New York city. 



Publications. The principal publications of the entomologist, to 

 the number of 70 are listed under the usual head. The more 



