REPORT OF THE STATE ENTOMOLOGIST 1901 739 



rather than to allow it to depend on the enterprise of private 

 individuals, solely because it means the greatest good to the 

 greatest number at a minimum expenditure. This imported 

 pest is slowly extending its range northward of Albany and 

 Troy, and, in some localities where no spraying is done, it is 

 this season proving a scourge to both European and American 

 elms. 



The cost of spraying shade trees in cities and villages is a very 

 important matter; and in a former bulletin^ some attempt was 

 made to ascertain the expense connected with such operations. 

 Figures at that time gave the cost as ranging from about loc 

 to 56c a tree. Some recent estimates have come into my pos- 

 session regarding the cost of spraying in Albany and its immedi- 

 ate vicinity. Mr H. W. Gordinier states that in Lansingburg 

 N. Y., where he had a contract to spray all the trees in the vil- 

 lage and where most of the elms are very large, the cost per 

 tree for one spraying averaged about 23c, while in Troy, where 

 he sprays the trees of private individuals here and there over 

 the city and is necessarily obliged to travel considerably to go 

 from one lot of trees to another, the cost of spraying ranges 

 from 50c to 60c a tree for each spraying. In both cases the 

 rather more expensive arsenate of lead was used. Both of these 

 figures apply to elmtrees infested with the elm leaf beetle; and, 

 as all who have had experience with this pest know, it requires 

 very careful and thorough spraying in order to obtain satis- 

 factory results. The average cost per tree for spraying in 

 Albany in 1901, using 5 pounds of Bowker's disparene to each 

 100 gallons of water, was 22c, and the average number of trees 

 sprayed per day by each power spraying outfit was 40. Two 

 were operated under one foreman. However, it was found that, 

 where the trees were small and of a nearly uniform size, such 

 as Norway maples about 30 feet in hight, 180 trees could be 

 sprayed in one day. 



The village of Saratoga Springs undertook to spray its many 

 large maple trees, ranging in hight from 20 to 80 feet, in 1900, 



^N. Y. state mus. Bill. 20. 1S9S. p. 21-22. 



