FORTIETH ANNUAL REPORT. 117 



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



follows :^ 



33°] 



32° [■ Baume dilute IJ gallons to 50 of water. 



31° J 



30° 



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



Tf . + • 28° J 

 If test IS 270 > 



26° lBaum6 dilute 2 gallons to 50 of water. 



25° J 



24° ] 



23° [ Baumg dilute 2J 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, tioice as many pounds of j^ulphur 

 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-sulphur solution until just hefore ready to hegin spraying. 



SELF-BOILBD LIME-SULPHUR MIXTURE. 



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

 its chief value is that it does not (when properly made) injure peach 

 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 sulphur, 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 be added to cool the mixture and prevent further cooking. 

 It is then ready to be strained into the spray tank, diluted up to the 

 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. 



