Peach Lkak Curl. 297 



II. Home-boiled concentrated solutions of lime sulfur. — Professor A. B. 

 Cordley of Oregon was the first man to devise a home-boiled concentrate. 

 His directions for preparing this solution, given in " Better Fruit " 

 for April, 1909, p. 7,2)' ^^e as follows: 



Sulfur, best, finely ground no lbs. 



Lime, best grade, unslaked 60 



Water sufficient to make 60 gals. 



Slake the lime, mix the sulfur into a thin paste with a little water, add 

 enough water to make 60 gallons, bring to a boil and boil for one hour. 

 The sediment is then allowed to settle, after which the clear, dark 

 amber-colored liquid is drawn off and may be stored in casks for future 

 use. This, according to Cordley, should test from 26° to 32° Baume. 

 It should accordingly be diluted from about i-ii to 1-15 for Peach 

 Leaf Curl, according to table 4. 



The directions for the preparation of home-boiled concentrated 

 solution as given by Van Slyke and Parrott ('09) are quoted below: 



" For making the concentrated mixture the steps arc the same as 

 in making the usual boiled wash, but 60 lbs. of lime and 125 lbs. of 

 sulfur are used for 50 gallons of solution. Slake the lime, make a thin 

 paste, and add the sulfur. Flowers of sulfur or light or heavy sulfur 

 flour may be used. The lime should be fresh lump lime, free from dirt 

 and grit, containing 90% or more of calcium oxid and less than 5% 

 of magnesium oxid. Stir thoroughly during the hour of cooking to break 

 up the lumps of sulfur. Enough water should be added at the start 

 so that evaporation will not leave the quantity less than 50 gallons 

 when the cooking is ended. If kettles are used, 10 to 15 gallons additional 

 will be needed, while with steam none may be required. The kettles 

 should be considerably larger than the amount of wash to be made 

 to prevent loss of material by boiling over. The clear liquid should 

 be drawn off into tight containers if to be kept any considerable time; 

 and stored where there is no danger of temperatures much below 

 freezing." 



III. Commercial concentrated solution. — There are a large number of 

 proprietary brands of these concentrates now on the market and used 

 by growers in this State. Most of these are clear, amber-colored solu- 

 tions, though at least one company puts out a so-called " heavy grade " 

 containing sediment. These concentrates should test about 32 °Baume. 

 In testing solutions containing sediment the reading should be taken 



'09. Van Slyke, L. L. & Parrott, P. J, N. Y. Geneva Bui. 319 & 320:12. 

 (Pop. Ed.) 



