LOUISIANA CIRCI-LAR \<>. 4. 39 



lio of assistance to the live in resisting the damage by the 

 pest until winter, when a thorough treatment can be given. In 

 some eases the application of a 15 per cent kerosene emulsion ; 

 i to the entire tree, foliage and all) will kill all young lice and 

 some of the older insects as well, but in the course of a couple of 

 weeks after spraying the young lice are again as abundant as 

 ever, and such sprayings, to have any material effect upon the 

 scale, must be repeated every two or three weeks until the end of 

 the season. Any summer treatment that may he undertaken 

 -should be considered as no more than an agency in reducing the 

 rate of multiplication of the insects until a thorough spraying 

 with the lime-sulphur can be given during the winter following. 

 Manufacturers of, and Dealers in, Spraying Machinery. 



.For the convenience of those who contemplate the control of 

 this or other fruit insects upon their premises, we give below a 

 list of some of the manufacturers and dealers in spraying 

 machinery. The fruit-grower who has in mind the purchase of 

 a spraying outfit will do well to secure catalogues from several of 

 these firms and from these he will be able to obtain much infor- 

 mation regarding spraying machinery and will be enabled to 

 select an outfit suited to his particular requirements: 



Goulds Manufacturing Co., Seneca Falls, N. Y. 



The Dem ing Company, Salem, Ohio. 



Morrill & Morley, Benton Harbor, Mich. 



Field Force Pump Co., Elmira, N. Y. 



F. E. Myers Pump Co., Ashland, Ohio. 



Wm. Stahl, Quincy, 111. 



Spray-Motor Co., Buffalo, N. Y. 



Beck & Gregg Hardware Co., Atlanta, Ga. 



P. ff. Berckmans Co., Augusta. Ga. 



*Kerosene emulsion can be made from 4 pounds of \vliale-oil (or good 

 laundry) soap. 4 gallons of water and 8 gallons of kerosene as follows: Weigh 

 the soap carefully and place with the water in a vessel over the fire, usiim a 



slight excess of water to make up for evaporation. Fit a pump with a straight 

 piece of hose, to which is attached a nozzle for throwing a straight stream 



"3-16 or 1-4 inch in diameter. Pour the oil into a barrel or tub in which the 

 pump is set and when the soap is dissolved and the solution begins to boil, add 

 it to the oil (away from the fire) and pump the whole vigorously hack into itself 

 for a period of at least ten minutes. The stream from the nozzle should he 

 directed straight downward into the mixture so as to agitate it to the very 

 "bottom. After a few minutes the oil and soap solution will be seen to combine, 

 forming a thick, creamy solution which when perfectly made will remain without 

 change for several days. For a 20 per cent, strength add water to make a total 

 of 40 gallons : for a if> per cent, strength add water to make 54 gallons, and for 

 a 10 per cent strength add water to make 80 gallons and agitate thoroughly 



'before use. 



