15 



formed by the lime as it slakes is used to boil the mixture, may be used : 

 Lime Sulphur Wash (Self Cooked) : 



Formula No. i — Fresh lime 35 pounds. 



Sulphur 17 " 



Water 40 gallons. 



Put the sulphur into a vessel and add 2 gallons of boiling water, a 

 little at a time, stirring vigorously until a smooth paste is obtained. In 

 another vessel large enough to hold 40 gallons, place the lime, pour 

 onto it 12 gallons of boiling water, and then add the sulphur paste pre- 

 viously prepared. Place a hoe in the mixture, quickly cover the barrel 

 with heavy burlap sack, and allow to cook for half an hour. During 

 the cooking period, occasionally raise the mixture from the bottom to 

 prevent it "caking." Nothing must be done to interrupt the boiling, 

 as that will affect the quality of the wash. After the mixture has cooked 

 for 30 minutes, add 28 gallons of warm water, strain into spray tank, 

 and apply at once. 



In preparing this wash many fruit growers have found the 35 pounds 

 of lime excessive, and have reduced the quantity to 25 to 30 pounds : 



Formula No. 2 — Fresh lime 25 pounds. 



Sulphur (flowers) 20 " 



Sal soda 12^ " 



Water 40 gallons. 



Put 5 or 6 gallons of hot water into a barrel, add the lime, quickly 

 following with the sulphur and sal soda, and stir until the slaking is 

 practically completed. If necessary, add cold water to prevent the mix- 

 ture boiling over. After the violent action has ceased, cover the barrel, 

 allow to stand half an hour, dilute to full quantity, strain, and apply 

 while hot : 



Formula No. 3 — Fresh lime 30 pounds. 



Sulphur (flowers) 15 



Caustic soda 4-6 



Water 40 gallons. 



In preparing this mixture, proceed as with lime-sulphur-sal soda 

 wash, only add the caustic soda instead of the sal soda. The granulated 

 caustic soda is the most efficient. It has been recommended that this 

 wash be boiled with steam for 20 minutes. 



These methods of preparing the mixtures are very convenient where 

 small quantities are required, but it is hardly possible to make a wash 

 in this way that is as reliable as by boiling with live steam. Much will 

 depend upon the quality of the lime used. It must be strictly fresh and 

 of a very quick slaking kind. That obtained from the Port Colborne 

 and Beachville lime kilns apparently gives the best results. 



