328 STATE BOARD OF AGRICULTURE. 



and used. Test with a Baiime hydrometer (see later page) and dilute as 



follows :^ 



33°] 



32° [ Baum6 dilute H gallons to 50 of water. 



31° J 



30° ] 



29° [Baum6 dilute 1| gallons to 50 of water. 



98° 



If test IS 270 \ 



26° [ Baum6 dilute 2 gallons to 50 of water, 



25° J 



24° 1 



23° 't Baum6 dilute 2^ gallons to 50 of water. 



22° J 



2nd. Use home-made concentrated lime-sulphur solution (See later 

 page). Test each lot with the Baume hydrometer and for use, dilute as 

 directed for the commercial concentrated solution. 



3rd. To make the dilute solution at any time and in any quantity ; Boil 

 in a few gallons of water for one hour, twice as many pounds of sulphur 

 as of lime, strain and dilute with water so there will be 8 pounds of 

 sulphur to every 100 gallons. 



Example: To make 100 gallons of spray solution, boil 8 pounds 

 of sulphur and 4 pounds of lime as directed. 



Poison to Use in Lime-Sulphur Sprays. 



The only poison that should be used in the lime-sulohur sprays is 

 arsenate of lead. Work this into a thin paste and do not add to the 

 lime-sidphur solution until just hcforc ready to hcgiii sprayiny. 



SELF-BOILED LIME-SULPHUR MIXTURE. 



This mixture has come into prominence in ihe past few years and 

 Its chief value is that it does not (when properly made) injure ])each 

 or plum foliage. 



The formula is : 



Lump lime 8 pounds 



Sulphur 8 pounds. 



Water 50 gallons. 



The mixture can be prepared better by using thirty-two pounds of 

 lime, thirty-two pounds of sulphur, and eight or ten gallons of water, and 

 then diluting to 200 gallons. 



Place the lime in a barrel and add enough water to almost cover it, 

 as soon as the slaking begins, add the sulpliur, which should be run 

 through a sieve to break up the lumps. 



Stir constantly and add enough water to make a thick paste and 

 then, gradually, a thin paste. As soon as the lime is well slaked, cold 

 water should bo added to cool the mixture and prevent further cooking. 

 It is then ready to be strained into the spray tank, diluted u]) to tlie 

 full formula, and used. 



Care must be taken not to allow the boiling to proceed too far, if the 



"Circular 10 Mich. Agr. Exp. Station. 



