44 



NEW YORK STATE MUSEUM 



(Icpartinciit of public i)arks of the city of New York. This is the form used 

 in Albany. 1 he whole outfit is represented on plate 21. It consists of a 

 Daimler ^'■asoline motor operating a Gould force jiump. The motor and 

 pump, weighing but 300 pounds, can be placed in the l)ottom of a spring 

 wagon along with the 100 gallon lank containing the poisonous mixture. 

 This motor has the advantage of l>eing almost noisi-less in operati(jn and is 

 scarcely noticed by passing horses. It is ver)- inexpensive to op(!rate, as a 

 gallon of gasoline, is sufficient for a day, and it rc(|uirrs so little attention 

 that a tyro can nm it. The smallest size Gould thn-e-piston |)um]) is the 

 one used with ihc motor, though Dr .Southwick now recommends a larger 

 one in order to utilize the power more fully. A complete power spraying 

 outfit, aside from horse and wagon, should not cost over $500, the price 

 naturally varying with market conditions and (piality of materials used. 

 I'^our lines of hose can easily be supplicnl, though in most places in Albany 

 not more than two can be used to advantage. 



Some other apparatus in addition to that usuall\- suijplit'il with s|)ra\ing 

 outfits is necessary. Several ladders or some convenient arrangement for 

 getting up into trees is almost essential unless th(; spra\ing wagon has one 

 of the elevating platforms such as arc used l)y electric car companies on 

 repair outfits. Two power s|)raying outlits constructed for the village of 

 Saratoga in 1899 were provitleil with these ele\aling towers and they were 

 found to be very effective and economical. The cost of spraying for the 

 forest tent caterpillar which, by the way, need not be done so carefull)- as 

 for the elm leaf beetle, was but i 7'4C a tree, and considerable of this saving 

 was attributed to the elevating towers. In this instance 5667 large maple 

 trees were spra\cd and practicalK' all in the \-illage were treated, thus enab- 

 ling the operators to save time in every possible manner. 



Haiid collcclhis;, etc. Hand collecting appears very slow, labf)rious, 

 and not at all ada|)led to prest-nt conditions. This is true in a great many 

 instances and yet there 'are cases where hand picking is one of the most eco- 

 nomical methods of controlling certain injurious species. The white marked 

 tussock moth, 1 1 e m e r o c a m j) a leu co stigma Abb. tH; Sm., is a form 



