34 The Bulletin. 



SPRAYING CHEMICALS. 



Lime. — This can usually be had in any village at very cheap rates. 



For spraying work it should be the fresh unslaked (or "stone") lime. 



If this can not be had, the powdered air-slaked lime caii be used, but 



must be carefully sifted and lumps crushed, and twice as much by weight 



should be used as is recommended for the stone lime. Fresh lime should 



cost from $1.00 to $1.20 per barrel. 



Bluestone. -This may be had at any drug store, but can be had more 



cheaply by ordering in large quantity from some wholesale firni which 



makes a specialty of handling spraying chemicals. At retail it costs 



from fifteen to twenty-five cents per pound ; when purchased in quantity, 



eight to twelve cents. 



Paris Green.— This well-known poison can be found in most general 



stores in the country, Avhere it retails at twenty-five to forty cents per 



pound. In quantity it can be had at cheaper rates. 



Arsenate of Lead. — This is a newer poison than Paris green, and is 



used for the same purposes. It costs less per pound (fifteen to twenty- 

 five cents), but as much greater quantity is used, it is actually more 



expensive. It has the advantage, however, of not settling to the bottom 

 so quickly, and that it can be used on very delicate foliage (such as 

 peach) without burning. It is sold by some large drug manufacturers 

 and by those firms which specialize in spray chemicals. It is not kept 

 by most druggists in this State, but can be ordered through the larger 

 firms. It is sold in form of a thick white paste. 



Sulphur. —There are two grades of sulphur: "flour of sulphur" and 

 "flowers of sulphur." For making the Lime-sulphur Wash the "flow- 

 ers" is considered better, but either may be used. Sulphur may be or- 

 dered through any drug firm, or perhaps some general stores handle it 

 or can order it. At retail it costs from about fifteen to twenty cents per 

 pound, at wholesale from eight to twelve cents. 



Other Materials. —The other spraying materials mentioned in this 

 Bulletin— soap, oil, etc.— can be easily procured everywhere at varying 

 rates. 



COMMERCIAL MANUFACTURERS AND DEALERS. 



Following are the names and addresses of some manufacturers of 

 spraying chemicals : 



Thomsen Chemical Co., Baltimore, Md. Arsenate of lead, Lime- 

 sulphur, soluble oil, and others. 



B. G. Pratt Company, 50 Church Street, New York City. Oil wash 

 known as "Scalecide." 



Jas. a. Blanchard Company, New York, N. Y. 



Fred L. Lavenburg, 100 William Street, New York City. Arsenate 

 of lead, Paris Green. 



Yreeland Chemical Company, 26 Dey Street. Thidsori Terminal 

 Bldg., Neiv York City. Arsenate of lead. Lime-sulphur. 



